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Dragonchain Great Reddit Scaling Bake-Off Public Proposal

Dragonchain Great Reddit Scaling Bake-Off Public Proposal

Dragonchain Public Proposal TL;DR:

Dragonchain has demonstrated twice Reddit’s entire total daily volume (votes, comments, and posts per Reddit 2019 Year in Review) in a 24-hour demo on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. At the time, in January 2020, the entire cost of the demo was approximately $25K on a single system (transaction fees locked at $0.0001/txn). With current fees (lowest fee $0.0000025/txn), this would cost as little as $625.
Watch Joe walk through the entire proposal and answer questions on YouTube.
This proposal is also available on the Dragonchain blog.

Hello Reddit and Ethereum community!

I’m Joe Roets, Founder & CEO of Dragonchain. When the team and I first heard about The Great Reddit Scaling Bake-Off we were intrigued. We believe we have the solutions Reddit seeks for its community points system and we have them at scale.
For your consideration, we have submitted our proposal below. The team at Dragonchain and I welcome and look forward to your technical questions, philosophical feedback, and fair criticism, to build a scaling solution for Reddit that will empower its users. Because our architecture is unlike other blockchain platforms out there today, we expect to receive many questions while people try to grasp our project. I will answer all questions here in this thread on Reddit, and I've answered some questions in the stream on YouTube.
We have seen good discussions so far in the competition. We hope that Reddit’s scaling solution will emerge from The Great Reddit Scaling Bake-Off and that Reddit will have great success with the implementation.

Executive summary

Dragonchain is a robust open source hybrid blockchain platform that has proven to withstand the passing of time since our inception in 2014. We have continued to evolve to harness the scalability of private nodes, yet take full advantage of the security of public decentralized networks, like Ethereum. We have a live, operational, and fully functional Interchain network integrating Bitcoin, Ethereum, Ethereum Classic, and ~700 independent Dragonchain nodes. Every transaction is secured to Ethereum, Bitcoin, and Ethereum Classic. Transactions are immediately usable on chain, and the first decentralization is seen within 20 seconds on Dragon Net. Security increases further to public networks ETH, BTC, and ETC within 10 minutes to 2 hours. Smart contracts can be written in any executable language, offering full freedom to existing developers. We invite any developer to watch the demo, play with our SDK’s, review open source code, and to help us move forward. Dragonchain specializes in scalable loyalty & rewards solutions and has built a decentralized social network on chain, with very affordable transaction costs. This experience can be combined with the insights Reddit and the Ethereum community have gained in the past couple of months to roll out the solution at a rapid pace.

Response and PoC

In The Great Reddit Scaling Bake-Off post, Reddit has asked for a series of demonstrations, requirements, and other considerations. In this section, we will attempt to answer all of these requests.

Live Demo

A live proof of concept showing hundreds of thousands of transactions
On Jan 7, 2020, Dragonchain hosted a 24-hour live demonstration during which a quarter of a billion (250 million+) transactions executed fully on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. This means that every single transaction is secured by, and traceable to these networks. An attack on this system would require a simultaneous attack on all of the Interchained networks.
24 hours in 4 minutes (YouTube):
24 hours in 4 minutes
The demonstration was of a single business system, and any user is able to scale this further, by running multiple systems simultaneously. Our goals for the event were to demonstrate a consistent capacity greater than that of Visa over an extended time period.
Tooling to reproduce our demo is available here:
https://github.com/dragonchain/spirit-bomb

Source Code

Source code (for on & off-chain components as well tooling used for the PoC). The source code does not have to be shared publicly, but if Reddit decides to use a particular solution it will need to be shared with Reddit at some point.

Scaling

How it works & scales

Architectural Scaling

Dragonchain’s architecture attacks the scalability issue from multiple angles. Dragonchain is a hybrid blockchain platform, wherein every transaction is protected on a business node to the requirements of that business or purpose. A business node may be held completely private or may be exposed or replicated to any level of exposure desired.
Every node has its own blockchain and is independently scalable. Dragonchain established Context Based Verification as its consensus model. Every transaction is immediately usable on a trust basis, and in time is provable to an increasing level of decentralized consensus. A transaction will have a level of decentralization to independently owned and deployed Dragonchain nodes (~700 nodes) within seconds, and full decentralization to BTC and ETH within minutes or hours. Level 5 nodes (Interchain nodes) function to secure all transactions to public or otherwise external chains such as Bitcoin and Ethereum. These nodes scale the system by aggregating multiple blocks into a single Interchain transaction on a cadence. This timing is configurable based upon average fees for each respective chain. For detailed information about Dragonchain’s architecture, and Context Based Verification, please refer to the Dragonchain Architecture Document.

Economic Scaling

An interesting feature of Dragonchain’s network consensus is its economics and scarcity model. Since Dragon Net nodes (L2-L4) are independent staking nodes, deployment to cloud platforms would allow any of these nodes to scale to take on a large percentage of the verification work. This is great for scalability, but not good for the economy, because there is no scarcity, and pricing would develop a downward spiral and result in fewer verification nodes. For this reason, Dragonchain uses TIME as scarcity.
TIME is calculated as the number of Dragons held, multiplied by the number of days held. TIME influences the user’s access to features within the Dragonchain ecosystem. It takes into account both the Dragon balance and length of time each Dragon is held. TIME is staked by users against every verification node and dictates how much of the transaction fees are awarded to each participating node for every block.
TIME also dictates the transaction fee itself for the business node. TIME is staked against a business node to set a deterministic transaction fee level (see transaction fee table below in Cost section). This is very interesting in a discussion about scaling because it guarantees independence for business implementation. No matter how much traffic appears on the entire network, a business is guaranteed to not see an increased transaction fee rate.

Scaled Deployment

Dragonchain uses Docker and Kubernetes to allow the use of best practices traditional system scaling. Dragonchain offers managed nodes with an easy to use web based console interface. The user may also deploy a Dragonchain node within their own datacenter or favorite cloud platform. Users have deployed Dragonchain nodes on-prem on Amazon AWS, Google Cloud, MS Azure, and other hosting platforms around the world. Any executable code, anything you can write, can be written into a smart contract. This flexibility is what allows us to say that developers with no blockchain experience can use any code language to access the benefits of blockchain. Customers have used NodeJS, Python, Java, and even BASH shell script to write smart contracts on Dragonchain.
With Docker containers, we achieve better separation of concerns, faster deployment, higher reliability, and lower response times.
We chose Kubernetes for its self-healing features, ability to run multiple services on one server, and its large and thriving development community. It is resilient, scalable, and automated. OpenFaaS allows us to package smart contracts as Docker images for easy deployment.
Contract deployment time is now bounded only by the size of the Docker image being deployed but remains fast even for reasonably large images. We also take advantage of Docker’s flexibility and its ability to support any language that can run on x86 architecture. Any image, public or private, can be run as a smart contract using Dragonchain.

Flexibility in Scaling

Dragonchain’s architecture considers interoperability and integration as key features. From inception, we had a goal to increase adoption via integration with real business use cases and traditional systems.
We envision the ability for Reddit, in the future, to be able to integrate alternate content storage platforms or other financial services along with the token.
  • LBRY - To allow users to deploy content natively to LBRY
  • MakerDAO to allow users to lend small amounts backed by their Reddit community points.
  • STORJ/SIA to allow decentralized on chain storage of portions of content. These integrations or any other are relatively easy to integrate on Dragonchain with an Interchain implementation.

Cost

Cost estimates (on-chain and off-chain) For the purpose of this proposal, we assume that all transactions are on chain (posts, replies, and votes).
On the Dragonchain network, transaction costs are deterministic/predictable. By staking TIME on the business node (as described above) Reddit can reduce transaction costs to as low as $0.0000025 per transaction.
Dragonchain Fees Table

Getting Started

How to run it
Building on Dragonchain is simple and requires no blockchain experience. Spin up a business node (L1) in our managed environment (AWS), run it in your own cloud environment, or on-prem in your own datacenter. Clear documentation will walk you through the steps of spinning up your first Dragonchain Level 1 Business node.
Getting started is easy...
  1. Download Dragonchain’s dctl
  2. Input three commands into a terminal
  3. Build an image
  4. Run it
More information can be found in our Get started documents.

Architecture
Dragonchain is an open source hybrid platform. Through Dragon Net, each chain combines the power of a public blockchain (like Ethereum) with the privacy of a private blockchain.
Dragonchain organizes its network into five separate levels. A Level 1, or business node, is a totally private blockchain only accessible through the use of public/private keypairs. All business logic, including smart contracts, can be executed on this node directly and added to the chain.
After creating a block, the Level 1 business node broadcasts a version stripped of sensitive private data to Dragon Net. Three Level 2 Validating nodes validate the transaction based on guidelines determined from the business. A Level 3 Diversity node checks that the level 2 nodes are from a diverse array of locations. A Level 4 Notary node, hosted by a KYC partner, then signs the validation record received from the Level 3 node. The transaction hash is ledgered to the Level 5 public chain to take advantage of the hash power of massive public networks.
Dragon Net can be thought of as a “blockchain of blockchains”, where every level is a complete private blockchain. Because an L1 can send to multiple nodes on a single level, proof of existence is distributed among many places in the network. Eventually, proof of existence reaches level 5 and is published on a public network.

API Documentation

APIs (on chain & off)

SDK Source

Nobody’s Perfect

Known issues or tradeoffs
  • Dragonchain is open source and even though the platform is easy enough for developers to code in any language they are comfortable with, we do not have so large a developer community as Ethereum. We would like to see the Ethereum developer community (and any other communities) become familiar with our SDK’s, our solutions, and our platform, to unlock the full potential of our Ethereum Interchain. Long ago we decided to prioritize both Bitcoin and Ethereum Interchains. We envision an ecosystem that encompasses different projects to give developers the ability to take full advantage of all the opportunities blockchain offers to create decentralized solutions not only for Reddit but for all of our current platforms and systems. We believe that together we will take the adoption of blockchain further. We currently have additional Interchain with Ethereum Classic. We look forward to Interchain with other blockchains in the future. We invite all blockchains projects who believe in decentralization and security to Interchain with Dragonchain.
  • While we only have 700 nodes compared to 8,000 Ethereum and 10,000 Bitcoin nodes. We harness those 18,000 nodes to scale to extremely high levels of security. See Dragonchain metrics.
  • Some may consider the centralization of Dragonchain’s business nodes as an issue at first glance, however, the model is by design to protect business data. We do not consider this a drawback as these nodes can make any, none, or all data public. Depending upon the implementation, every subreddit could have control of its own business node, for potential business and enterprise offerings, bringing new alternative revenue streams to Reddit.

Costs and resources

Summary of cost & resource information for both on-chain & off-chain components used in the PoC, as well as cost & resource estimates for further scaling. If your PoC is not on mainnet, make note of any mainnet caveats (such as congestion issues).
Every transaction on the PoC system had a transaction fee of $0.0001 (one-hundredth of a cent USD). At 256MM transactions, the demo cost $25,600. With current operational fees, the same demonstration would cost $640 USD.
For the demonstration, to achieve throughput to mimic a worldwide payments network, we modeled several clients in AWS and 4-5 business nodes to handle the traffic. The business nodes were tuned to handle higher throughput by adjusting memory and machine footprint on AWS. This flexibility is valuable to implementing a system such as envisioned by Reddit. Given that Reddit’s daily traffic (posts, replies, and votes) is less than half that of our demo, we would expect that the entire Reddit system could be handled on 2-5 business nodes using right-sized containers on AWS or similar environments.
Verification was accomplished on the operational Dragon Net network with over 700 independently owned verification nodes running around the world at no cost to the business other than paid transaction fees.

Requirements

Scaling

This PoC should scale to the numbers below with minimal costs (both on & off-chain). There should also be a clear path to supporting hundreds of millions of users.
Over a 5 day period, your scaling PoC should be able to handle:
*100,000 point claims (minting & distributing points) *25,000 subscriptions *75,000 one-off points burning *100,000 transfers
During Dragonchain’s 24 hour demo, the above required numbers were reached within the first few minutes.
Reddit’s total activity is 9000% more than Ethereum’s total transaction level. Even if you do not include votes, it is still 700% more than Ethereum’s current volume. Dragonchain has demonstrated that it can handle 250 million transactions a day, and it’s architecture allows for multiple systems to work at that level simultaneously. In our PoC, we demonstrate double the full capacity of Reddit, and every transaction was proven all the way to Bitcoin and Ethereum.
Reddit Scaling on Ethereum

Decentralization

Solutions should not depend on any single third-party provider. We prefer solutions that do not depend on specific entities such as Reddit or another provider, and solutions with no single point of control or failure in off-chain components but recognize there are numerous trade-offs to consider
Dragonchain’s architecture calls for a hybrid approach. Private business nodes hold the sensitive data while the validation and verification of transactions for the business are decentralized within seconds and secured to public blockchains within 10 minutes to 2 hours. Nodes could potentially be controlled by owners of individual subreddits for more organic decentralization.
  • Billing is currently centralized - there is a path to federation and decentralization of a scaled billing solution.
  • Operational multi-cloud
  • Operational on-premises capabilities
  • Operational deployment to any datacenter
  • Over 700 independent Community Verification Nodes with proof of ownership
  • Operational Interchain (Interoperable to Bitcoin, Ethereum, and Ethereum Classic, open to more)

Usability Scaling solutions should have a simple end user experience.

Users shouldn't have to maintain any extra state/proofs, regularly monitor activity, keep track of extra keys, or sign anything other than their normal transactions
Dragonchain and its customers have demonstrated extraordinary usability as a feature in many applications, where users do not need to know that the system is backed by a live blockchain. Lyceum is one of these examples, where the progress of academy courses is being tracked, and successful completion of courses is rewarded with certificates on chain. Our @Save_The_Tweet bot is popular on Twitter. When used with one of the following hashtags - #please, #blockchain, #ThankYou, or #eternalize the tweet is saved through Eternal to multiple blockchains. A proof report is available for future reference. Other examples in use are DEN, our decentralized social media platform, and our console, where users can track their node rewards, view their TIME, and operate a business node.
Examples:

Transactions complete in a reasonable amount of time (seconds or minutes, not hours or days)
All transactions are immediately usable on chain by the system. A transaction begins the path to decentralization at the conclusion of a 5-second block when it gets distributed across 5 separate community run nodes. Full decentralization occurs within 10 minutes to 2 hours depending on which interchain (Bitcoin, Ethereum, or Ethereum Classic) the transaction hits first. Within approximately 2 hours, the combined hash power of all interchained blockchains secures the transaction.

Free to use for end users (no gas fees, or fixed/minimal fees that Reddit can pay on their behalf)
With transaction pricing as low as $0.0000025 per transaction, it may be considered reasonable for Reddit to cover transaction fees for users.
All of Reddit's Transactions on Blockchain (month)
Community points can be earned by users and distributed directly to their Reddit account in batch (as per Reddit minting plan), and allow users to withdraw rewards to their Ethereum wallet whenever they wish. Withdrawal fees can be paid by either user or Reddit. This model has been operating inside the Dragonchain system since 2018, and many security and financial compliance features can be optionally added. We feel that this capability greatly enhances user experience because it is seamless to a regular user without cryptocurrency experience, yet flexible to a tech savvy user. With regard to currency or token transactions, these would occur on the Reddit network, verified to BTC and ETH. These transactions would incur the $0.0000025 transaction fee. To estimate this fee we use the monthly active Reddit users statista with a 60% adoption rate and an estimated 10 transactions per month average resulting in an approximate $720 cost across the system. Reddit could feasibly incur all associated internal network charges (mining/minting, transfer, burn) as these are very low and controllable fees.
Reddit Internal Token Transaction Fees

Reddit Ethereum Token Transaction Fees
When we consider further the Ethereum fees that might be incurred, we have a few choices for a solution.
  1. Offload all Ethereum transaction fees (user withdrawals) to interested users as they wish to withdraw tokens for external use or sale.
  2. Cover Ethereum transaction fees by aggregating them on a timed schedule. Users would request withdrawal (from Reddit or individual subreddits), and they would be transacted on the Ethereum network every hour (or some other schedule).
  3. In a combination of the above, customers could cover aggregated fees.
  4. Integrate with alternate Ethereum roll up solutions or other proposals to aggregate minting and distribution transactions onto Ethereum.

Bonus Points

Users should be able to view their balances & transactions via a blockchain explorer-style interface
From interfaces for users who have no knowledge of blockchain technology to users who are well versed in blockchain terms such as those present in a typical block explorer, a system powered by Dragonchain has flexibility on how to provide balances and transaction data to users. Transactions can be made viewable in an Eternal Proof Report, which displays raw data along with TIME staking information and traceability all the way to Bitcoin, Ethereum, and every other Interchained network. The report shows fields such as transaction ID, timestamp, block ID, multiple verifications, and Interchain proof. See example here.
Node payouts within the Dragonchain console are listed in chronological order and can be further seen in either Dragons or USD. See example here.
In our social media platform, Dragon Den, users can see, in real-time, their NRG and MTR balances. See example here.
A new influencer app powered by Dragonchain, Raiinmaker, breaks down data into a user friendly interface that shows coin portfolio, redeemed rewards, and social scores per campaign. See example here.

Exiting is fast & simple
Withdrawing funds on Dragonchain’s console requires three clicks, however, withdrawal scenarios with more enhanced security features per Reddit’s discretion are obtainable.

Interoperability Compatibility with third party apps (wallets/contracts/etc) is necessary.
Proven interoperability at scale that surpasses the required specifications. Our entire platform consists of interoperable blockchains connected to each other and traditional systems. APIs are well documented. Third party permissions are possible with a simple smart contract without the end user being aware. No need to learn any specialized proprietary language. Any code base (not subsets) is usable within a Docker container. Interoperable with any blockchain or traditional APIs. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js. Please see our source code and API documentation.

Scaling solutions should be extensible and allow third parties to build on top of it Open source and extensible
APIs should be well documented and stable

Documentation should be clear and complete
For full documentation, explore our docs, SDK’s, Github repo’s, architecture documents, original Disney documentation, and other links or resources provided in this proposal.

Third-party permissionless integrations should be possible & straightforward Smart contracts are Docker based, can be written in any language, use full language (not subsets), and can therefore be integrated with any system including traditional system APIs. Simple is better. Learning an uncommon or proprietary language should not be necessary.
Advanced knowledge of mathematics, cryptography, or L2 scaling should not be required. Compatibility with common utilities & toolchains is expected.
Dragonchain business nodes and smart contracts leverage Docker to allow the use of literally any language or executable code. No proprietary language is necessary. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js.

Bonus

Bonus Points: Show us how it works. Do you have an idea for a cool new use case for Community Points? Build it!

TIME

Community points could be awarded to Reddit users based upon TIME too, whereas the longer someone is part of a subreddit, the more community points someone naturally gained, even if not actively commenting or sharing new posts. A daily login could be required for these community points to be credited. This grants awards to readers too and incentivizes readers to create an account on Reddit if they browse the website often. This concept could also be leveraged to provide some level of reputation based upon duration and consistency of contribution to a community subreddit.

Dragon Den

Dragonchain has already built a social media platform that harnesses community involvement. Dragon Den is a decentralized community built on the Dragonchain blockchain platform. Dragon Den is Dragonchain’s answer to fake news, trolling, and censorship. It incentivizes the creation and evaluation of quality content within communities. It could be described as being a shareholder of a subreddit or Reddit in its entirety. The more your subreddit is thriving, the more rewarding it will be. Den is currently in a public beta and in active development, though the real token economy is not live yet. There are different tokens for various purposes. Two tokens are Lair Ownership Rights (LOR) and Lair Ownership Tokens (LOT). LOT is a non-fungible token for ownership of a specific Lair. LOT will only be created and converted from LOR.
Energy (NRG) and Matter (MTR) work jointly. Your MTR determines how much NRG you receive in a 24-hour period. Providing quality content, or evaluating content will earn MTR.

Security. Users have full ownership & control of their points.
All community points awarded based upon any type of activity or gift, are secured and provable to all Interchain networks (currently BTC, ETH, ETC). Users are free to spend and withdraw their points as they please, depending on the features Reddit wants to bring into production.

Balances and transactions cannot be forged, manipulated, or blocked by Reddit or anyone else
Users can withdraw their balance to their ERC20 wallet, directly through Reddit. Reddit can cover the fees on their behalf, or the user covers this with a portion of their balance.

Users should own their points and be able to get on-chain ERC20 tokens without permission from anyone else
Through our console users can withdraw their ERC20 rewards. This can be achieved on Reddit too. Here is a walkthrough of our console, though this does not show the quick withdrawal functionality, a user can withdraw at any time. https://www.youtube.com/watch?v=aNlTMxnfVHw

Points should be recoverable to on-chain ERC20 tokens even if all third-parties involved go offline
If necessary, signed transactions from the Reddit system (e.g. Reddit + Subreddit) can be sent to the Ethereum smart contract for minting.

A public, third-party review attesting to the soundness of the design should be available
To our knowledge, at least two large corporations, including a top 3 accounting firm, have conducted positive reviews. These reviews have never been made public, as Dragonchain did not pay or contract for these studies to be released.

Bonus points
Public, third-party implementation review available or in progress
See above

Compatibility with HSMs & hardware wallets
For the purpose of this proposal, all tokenization would be on the Ethereum network using standard token contracts and as such, would be able to leverage all hardware wallet and Ethereum ecosystem services.

Other Considerations

Minting/distributing tokens is not performed by Reddit directly
This operation can be automated by smart contract on Ethereum. Subreddits can if desired have a role to play.

One off point burning, as well as recurring, non-interactive point burning (for subreddit memberships) should be possible and scalable
This is possible and scalable with interaction between Dragonchain Reddit system and Ethereum token contract(s).

Fully open-source solutions are strongly preferred
Dragonchain is fully open source (see section on Disney release after conclusion).

Conclusion

Whether it is today, or in the future, we would like to work together to bring secure flexibility to the highest standards. It is our hope to be considered by Ethereum, Reddit, and other integrative solutions so we may further discuss the possibilities of implementation. In our public demonstration, 256 million transactions were handled in our operational network on chain in 24 hours, for the low cost of $25K, which if run today would cost $625. Dragonchain’s interoperable foundation provides the atmosphere necessary to implement a frictionless community points system. Thank you for your consideration of our proposal. We look forward to working with the community to make something great!

Disney Releases Blockchain Platform as Open Source

The team at Disney created the Disney Private Blockchain Platform. The system was a hybrid interoperable blockchain platform for ledgering and smart contract development geared toward solving problems with blockchain adoption and usability. All objective evaluation would consider the team’s output a success. We released a list of use cases that we explored in some capacity at Disney, and our input on blockchain standardization as part of our participation in the W3C Blockchain Community Group.
https://lists.w3.org/Archives/Public/public-blockchain/2016May/0052.html

Open Source

In 2016, Roets proposed to release the platform as open source to spread the technology outside of Disney, as others within the W3C group were interested in the solutions that had been created inside of Disney.
Following a long process, step by step, the team met requirements for release. Among the requirements, the team had to:
  • Obtain VP support and approval for the release
  • Verify ownership of the software to be released
  • Verify that no proprietary content would be released
  • Convince the organization that there was a value to the open source community
  • Convince the organization that there was a value to Disney
  • Offer the plan for ongoing maintenance of the project outside of Disney
  • Itemize competing projects
  • Verify no conflict of interest
  • Preferred license
  • Change the project name to not use the name Disney, any Disney character, or any other associated IP - proposed Dragonchain - approved
  • Obtain legal approval
  • Approval from corporate, parks, and other business units
  • Approval from multiple Disney patent groups Copyright holder defined by Disney (Disney Connected and Advanced Technologies)
  • Trademark searches conducted for the selected name Dragonchain
  • Obtain IT security approval
  • Manual review of OSS components conducted
  • OWASP Dependency and Vulnerability Check Conducted
  • Obtain technical (software) approval
  • Offer management, process, and financial plans for the maintenance of the project.
  • Meet list of items to be addressed before release
  • Remove all Disney project references and scripts
  • Create a public distribution list for email communications
  • Remove Roets’ direct and internal contact information
  • Create public Slack channel and move from Disney slack channels
  • Create proper labels for issue tracking
  • Rename internal private Github repository
  • Add informative description to Github page
  • Expand README.md with more specific information
  • Add information beyond current “Blockchains are Magic”
  • Add getting started sections and info on cloning/forking the project
  • Add installation details
  • Add uninstall process
  • Add unit, functional, and integration test information
  • Detail how to contribute and get involved
  • Describe the git workflow that the project will use
  • Move to public, non-Disney git repository (Github or Bitbucket)
  • Obtain Disney Open Source Committee approval for release
On top of meeting the above criteria, as part of the process, the maintainer of the project had to receive the codebase on their own personal email and create accounts for maintenance (e.g. Github) with non-Disney accounts. Given the fact that the project spanned multiple business units, Roets was individually responsible for its ongoing maintenance. Because of this, he proposed in the open source application to create a non-profit organization to hold the IP and maintain the project. This was approved by Disney.
The Disney Open Source Committee approved the application known as OSSRELEASE-10, and the code was released on October 2, 2016. Disney decided to not issue a press release.
Original OSSRELASE-10 document

Dragonchain Foundation

The Dragonchain Foundation was created on January 17, 2017. https://den.social/l/Dragonchain/24130078352e485d96d2125082151cf0/dragonchain-and-disney/
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TomoChain AMA with DAppBird: Public blockchain applications for businesses.

TomoChain AMA with DAppBird: Public blockchain applications for businesses.

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Hi everyone. Pleased to be here! Thank you for taking your time to join me.
I’m the Chief Business Development Officer for TomoChain.
Educationally I graduated university with degrees in both Industrial Engineering and Economics from Georgia Tech, and later earned an MBA from the Wharton School of Business.
I grew up as a gaming addict and have a video game collection that is a bit unwieldy. Dozens of consoles and, at one point, over 13 classic arcade machines.
So, before crypto, I spent much of my profession in the gaming space. I was a Game Designer, Game Producer, and eventually Studio Head for a major games studio that was recently purchased by Rockstar Games. I have run my own game-related tech businesses as well.
I fell into crypto back in 2014, and over time it became a second passion of mine as I began to truly understand the value of decentralization. True ownership of data was not possible until Bitcoin came along and that is simply a powerful and game-changing message to a world structure built on an opposing foundation.
Brief Introduction

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TomoChain is a Public Blockchain powered by Proof-of-Stake Voting. TomoChain launched into Mainnet 1 year ago in December 2018. It is secured by 150 Masternodes, of which I’m proud to be an operator myself. TomoChain is EVM Compatible and runs at a speedy 2000 TPS with a 2 Sec Blocktime. Gas fees are almost zero too.
Based out of Vietnam, TomoChain is Southeast Asia’s largest public blockchain. We are focusing on developing a full suite of DeFi products. We also have commercial and enterprise clients. TomoChain has a number of major crypto-partnerships including notables like Neo Blockchain, Chainlink and Crypto.com. Our Masternode network is run by some of the most recognizable players in the space as well, including Neo Global Capital, CoinGecko, HashQuark, KuCoin, and more large players are on the way.
TomoChain earned its place onto Binance.com with a fee-free listing last year by winning the BinanceDEX community vote in August 2019. Binance has written us up in a detailed Binance Research Report and awarded us the V-Label. We have also been in a number of their reports, including those related to Dapps and DeFi. We have been interviewed by Forbes.com official and had an in-person interview at NASDAQ, in the heart of Times Square, about TomoChain and our upcoming TomoX Protocol.
In China, specifically, we have been integrated into and have solid relationships with various blockchain players including HashQuark, HashKey, CoboWallet, Conflux, and many others. We launched an Ecosystem Development partnership with Neo Blockchain last December and co-hosted a meetup + workshop with them as well.

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GEARED FOR REAL WORLD USE
Now, let’s talk about how TomoChain has been built for real-world use.
We’re looking at Payments & DeFi as low hanging fruit when it comes to user adoption and TomoChain is developing a suite of tools to support this. The biggest challenge for having users benefit from Blockchain on a day-to-day basis is how much friction is involved to acquire, store and use it. Even stable coins are dual currency systems. The Stablecoin and then the Native Token to pay gas fees. Blockchain is simply not user-friendly.
Our view is that the true solution for Blockchain adoption by the world is end-users shouldn’t need to know they are using blockchain technology at all. It should be a hidden technology layer, similar to payment processor settlements or even the internet distribution centers/routers that power this very AMA we’re all participating in right now. Do we need to know the underlying technology infrastructure to use them? Nope.
We are developing a system to hide this friction, so the TomoChain blockchain can be integrated into real-world applications that you use every day on mobile or web.
There are 3 protocols that we are building to enable this future: (1) TomoZ: Zero Friction (2) TomoX: The DEX Protocol (3) TomoP: The Privacy Suite.

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TomoZ: Zero Friction - Our TomoZ protocol is a core starting point to the solution for mass market use of blockchain technology. TomoZ: Zero Friction allows for token issuance and use by having gas fees paid by the token itself. That means you don’t need TOMO to send transactions. You don’t even need to know you’re using the TomoChain blockchain.
So you could buy a cup of coffee at a café using loyalty points that are TomoZ tokens. The customers redeem for their coffee or earn it, but they don’t even have to know it’s a blockchain token which they actually own.
This approach is structured to enable the next million-plus users to utilize blockchain as a technology layer. After all, the real value of any Blockchain is in its utilization of high-quality transactions.
Now, TomoZ transactions aren’t FREE. It actually does use TOMO, but that’s hidden from the end-user. The way it works is that the token issuer deposits a small amount of TOMO into a pool. Every time the token is sent, TOMO is taken from this pool to pay the Masternodes.
The key is that the end-user doesn’t need to get involved with internal workings, which is why we call it the Zero Friction protocol
Now let’s talk about TomoX: The DEX Protocol
TomoX is an upcoming DEX Protocol that allows anyone to launch their on permissionless Decentralized Exchange in minutes. It requires very little technical knowledge making it a near turn-key solution.
TomoX is the fastest DEX experience since it’s a Layer 1 protocol. This means it’s run and secured by the entire TomoChain network. Our Masternodes manage the DEX instructions directly, rather than other DEXs that operate as a Layer 2 protocol. What this means is TomoX DEXs will operate at about 50x faster than a typical 0x exchange. That significantly improves the end-user experience.
TomoX DEX operators have access to a shared liquidity pool across all DEXs. That means a user buying on one DEX can be matched with a user selling on another DEX. Of course, Operators can customize and choose which tokens to include.
TomoX is fully decentralized since the Order Book is on-chain. Many other semi-decentralized exchanges store the OB on a centralized service in order to speed up the execution. That means there is a centralized point of weakness for them. TomoX minimizes custody and security challenges that centralized exchanges have too since all users are always in possession of their assets.
TomoX is currently in testnet and you can checkout TomoChain’s own DEX, aptly called TomoDEX, here: https://dex.testnet.tomochain.com/
Here is a link to get some free Testnet TOMO that can be used on the testnet version of TomoDEX: https://faucet.testnet.tomochain.com/
And finally, there is TomoP: Privacy Suite - TomoP is currently in testnet and is going to be the FASTEST way to send tokens privately. 2-4 seconds fast!
Any token issued on TomoChain will be able to utilize TomoP to send privately and anonymously. And that’s not all. We are including access to wrapped BTC, ETH, USDT, and other tokens that can also utilize the blazing speed and privacy that TomoP will offer.
Dapp privacy is a major part of TomoP. It is going to allow for the creation of Dapps to be built to handle customer data with true privacy, including from the Dapp operators themselves. This can jumpstart a new wave of applications geared towards hiding user information, transactions, assets owned, etc.
We are issuing a new token standard (TRC21p) which will be purely private. The only data available will be on its token supply. Token issuers can optionally provide auditing access to enforcement authorities to meet regulatory compliance. What this means is if the next Global PayPal/Skrill/Alipay competitor can build their service right on TomoChain and meet the most basic criteria required to stay above board in many jurisdictions.
If you guys want to check TomoP on testnet go here and login: https://wallet.testnet.tomochain.com/
Get some free Testnet TOMO that can be used with the TomoP testnet: https://faucet.testnet.tomochain.com/
Questions from the host
1. It’s been stated that TomoChain was on track to be a cash flow positive business, is it currently cash flow positive? What services or products is it offering to bring in this revenue?
Yes, absolutely. Our plan is to be cash flow positive this year. This really goes back to the level of experience our executive team has. Everyone is seasoned, having come from different fields, in big business and startups. Before the crazy boom of ICOs and IEOs, raising funding for traditional startups required considerable proof that there was market fit, that there were actual customers to drive revenue, and a model for growth.
We knew that TomoChain’s funds raised during the ICO were for a space that has yet to prove itself so the company had to be smart in budgeting for an uncertain future. And part of that initial preparation was selling much of the ICO proceeds into fiat. Something MANY blockchain startups did not do, largely due to ambitious teams that are also headed by very inexperienced leaders. So while the bubble burst, we had capital to continue operations and to even scale it.
And, we ARE running a business. A sustainable business requires us to identifying areas to generate income in order to minimize risk and to sustain the business in the long term. So we do both consulting and services work by helping clients to develop wallets, launch tokens (Orbyt), build exchanges (AIS), and of course enterprise solutions on the blockchain of which we have clients based out of Japan and in the Middle East using blockchain for traceability solutions across various industries from automotive, healthcare, and food.
2. What is the most strategical step TOMO is doing to bring adoption of TOMO coin to our daily lives?
Empowering businesses with a truly scalable blockchain that can be used by thousands and millions of users. We see user adoption of blockchain coming from businesses that base their solutions on blockchain technology. And, TomoChain has a number of real income-generating companies that have built on us, from exchanges to payment services to enterprise clients. Not bad for 1 year I say, especially during a stagnant market. Here are some examples.
UcarPac – A Top 10 User Car company in Japan is building traceability solutions on the blockchain. We completed a POC at the end of last year. After the assessment, the client decided it was solid and commissioned Phase 2 to expand the development of the project for commercialization purposes
Triip Protocol – Triip is a destination service for travelers to book vacations powered by Blockchain. Triip is a Shark Tank Vietnam alumnus, and the first ICO on TomoChain. Users can book tours and staycations using Triip or TOMO tokens.
WisePass – A service that sells subscription services to get discounted Starbucks, Singha Beer, and even makeup (of all things) integrated TomoChain as a payment solution
“Undisclosed Vendor” – Soon to be announced, a large player in the corporate gift giving business is also launching a Dapp on TomoChain to allow for them to make purchases with TOMO across thousands of items.
Maka - A peer-to-peer marketplace to conveniently buy/sell TOMO and other blockchain tokens using standard payment gateways, including e-wallets and bank transfers.
Coin98 – A local Vietnam crypto media company launched an App to allow for their community to earn their TomoChain token called C98 and use it for products and services geared around investors and gamers. The reception has been HUGE. 95,000 users and generating 500K+ transactions on our blockchain within 3 months of their launch! They are proving that innovative new business models can be adopted relying on and being blockchain specific.

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3. Do you have any plans to collaborate with developers or attract more Dapps built on TomoChain?
We are today. Our founders run the largest Blockchain Developer community in Vietnam and we work with a number of them to help develop solutions on the blockchain.
Our team has held Hackathons a few times over the last couple years and we have done developer workshops too, including one with Neo Blockchain. And this year we are working closely with educational institutions to launch blockchain courses in Vietnam.
Every Dapp developer we work with is a partner. We try to provide as much support as possible, both technical and marketing. A number of Dapps are games on TomoChain and we hold contests regularly to promote the developers and their titles.
Since we are focusing on alleviating the friction of blockchain technology, we are building out an API that will make it even easier for developers to integrate blockchain into standard applications. This is intended to allow standard non-blockchain application developers to operate in an environment they are accustomed to while also having the benefit of blockchain technology accessible.
Onboarding more developers will take time. However, I’m confident we’re on the cusp of something wonderful in the coming years that will change the relationship between users and applications enabled by blockchain. Entirely new economic structures can be set up since it’ll be the users owning all of their data for the first time in digital history. And true ownership is a powerful motivator that can be harnessed by innovative blockchain businesses.
submitted by alexngn201 to Tomochain [link] [comments]

r/Bitcoin recap - March 2018

Hi Bitcoiners!
I’m back with the fifteenth monthly Bitcoin news recap.
For those unfamiliar, each day I pick out the most popularelevant/interesting stories in Bitcoin and save them. At the end of the month I release them in one batch, to give you a quick (but not necessarily the best) overview of what happened in bitcoin over the past month.
And a lot has happened. It's easy to forget with so much focus on the price. Take a moment and scroll through the list below. You'll find an incredibly eventful month.
You can see recaps of the previous months on Bitcoinsnippets.com
A recap of Bitcoin in March 2018
submitted by SamWouters to Bitcoin [link] [comments]

How and why on earth did cryptocurrency become what is is today and should we seriously do something aboout it?

My first thought is - rather fittingly - the genesis block of BTC. Specifically the message:
The Times 03/Jan/2009 Chancellor on brink of second bailout for banks

Today, over 10 years later, this kind of message might as well read:
Coindesk(dot)com xx/xx/2019 Crypto whales and miners on the brink of a second bailout for cryptocurrency exchanges

Bitfinex being perhaps the most iconic example. Losing 850 million USD just like that thanks to transnational government agencies, they faced a similar fate as banks in the housing crisis. Total wipe-out. Just like banks, these monolithic exchanges are too big to fail. Failure would mean a global financial crisis in crypto, much like mt.gox. Not that different from the banks that got bailed out by institutions, Bitfinex received the same treatment, except from whales, investment funds, rich corporate entities and such. They covered for the whole loss basically, allowing things to keep operational at least. There wasn't really any demand for another tether, so without it, it could have been an economic meltdown in crypto. Hearing about similar offers made by other rich entities operating in the crypto scene to Binance after their hack, I'm starting to think this has become an even bigger, more common thing with crypto exchanges than it has been with banks.
It's rich people in positions of power protecting their own interests, except that in the proper spirit of crypto, it's quite secretive, likely (pseudo)anonymous and way less transparent than what the central banks did. Due to the nature of this technology, it can be hard to grasp what the actions taken by Bitfinex mean. To my understanding, they minted a new coin, LEO (witty name for a token under these circumstances..) and basically just decided it's market cap is 1 billion, then in a private sale, managed to somehow pull off the biggest ever ICO in the history of crypto, 1 billion of funding in just 10 days for what appears to me as basically printing money in order to cover for accounting, as this exclusive club taking part in the sale of LEO committed into buying said tokens using the money Bitfinex previously printed in order to manipulate the markets and profit, USDT that is. Can't remember any ICO in the past where the minimum barrier for an individual to participate was 1 million dollars and for companies, groups, or funds 100+ million.

We traded the tyranny of the banking system for a system that eventually reached centralization of power to a much greater degree, accompanied with lack of regulation and oversight which we all welcomed. I have observed and participated in the scene for at least 9 years, so almost from the very beginning, seeing the rise of first altcoins for example and all the crazy phenomena which emerged and how the community dealt with them, evolving in the process. There has been a distinct pattern that can be traced back to these early days, where some group of people would figure out how to use this new technology in all kinds of creative ways which under normal circumstances would have been considered fraud, collusion... all kind of things we did NOT want. So when the majority aka victims became aware, we always protested accordingly. Pre-mined cloned coins that were hyped over social media only so the creators would profit? We decided they were worthless.
So these people, having a very lucrative way of essentially scamming people dreaming of moons came up with a solution: there will be no pre-mine, but coins were launched under the radar and only people with power (many BTC) were informed. In case you aren't familiar, when a new minable coin is released and there's only a handful of miners, a significant portion of the tokens in circulation are mined in an insanely fast manner, first 10% of total supply generated in a matter of hours perhaps, giving everyone who managed to mine on the day of launch a major advantage. We decided the secrecy was equally bad and they openly announced these coins, directing masses to use mining pools, only for them to be be under DDOS during the launch.

That pattern eventually evolved to ICO's and everything else we see today. Ripping people off in sophisticated enough ways that we put up with it. After all, we could always get lucky from the 'generous' pump & dump groups they were organizing and offering to us. The system may have changed, but the philosophy is the same: people with the most money either as individuals or a group exploiting 'lesser' people and groups, concentrating power (BTC) in the process much akin to 'rich get richer while poor get poorer'. 10 years onwards, thanks to the financial side (trading), the whole crypto economy is still not only using but dependent on market manipulation and all kinds of deceiving schemes.

This has been a major obstacle to wide-scale adoption, despite powerful people trying to convince us that manipulating prices to the level of a bubble will lead to people thinking this technology is great and start using it. In reality, many among the general population either had or started having doubts about these bitcoins. Imagine if they tried to sell internet and all of it's possibilities solely through nigerian prince scam spam.

Then there's the miners, one of if not the most powerful entity in cryptoscene as a whole. Naturally their power and influence only grew, significant investments were made. I remember conversations with some chinese guy mining LTC back in 2014, he was always like "Yay, the newest shipment of 300 AMD GPU's came straight out the factory". Must have had thousands. Asics had begun dominating BTC mining and they weren't cheap either. Not to mention all that electricity too. Where I'm leading you with this, is the current situation where we have established mining companies with ASICs dedicated solely to BTC mining for efficiency, probably pretty much useless for anything else. Valuations of 100's of millions if not billions at their peak. Then we realized how stupid it is to waste electricity like that when we could do it in a better way, Proof-of-Stake. Instant conflict of interest hindering further innovation due to competition instead of the opposite. The mining giants refuse to go out quietly and many have been mining BTC at a loss (electricity) for a long time now, effectively needing a pump to dump those mined BTC just to cover their operating costs in the past as they naturally didn't want to sell them at a loss.
Side-note: I think the current pump is due to a lot of BTC miners quitting and cashing out of BTC in a way that doesn't bankrupt them. To make matters force, they can effectively coerce both whales and crypto exchanges to co-operate in order to pump the prices because if the miners go out of business, everyone utilizing BTC for profit is in big trouble. So if they say they need a pump to dump, they get one. Bail-outs for miners too for christ sake.

Luckily, we have alternatives being heavily developed, but I fear for a financial meltdown for crypto before they reach a mature stage. Not a very popular subject to my knowledge, because in the near future, somebody has to pay the bill and this time it ain't covered by taxes collected. This awesome technology has been primarily abused and exploited, with people innovating in the are of 'get-rich-quick' schemes more than the technology itself. Ethereum was supposed to be a paradigm shift, but it became another instrument of the same scheme, even though it helped push tech forward some.

Remember that this is a time of decentralization. It's up to us, the collective, to do something about this if we want (or even can for that matter). Ironically, we stuck with the old mindset of 'just wait it out and The Man will fix it for us eventually' which was supposedly a thing of the past.

So I ask you: What are your opinions about the current state of affairs in crypto, especially the financial side? Do you feel it's all good and if so, why? Any and all input is welcome. Let's make the scene a better place and show good example to the pagans who doubt us due to our dubious practices in the past and even today, furthering acceptance and adoption instead of laser-point focus on profit to the point the system collapses.
submitted by RanCestor to CryptoCurrency [link] [comments]

Cryptocurrency NEO-review and analysis of prospects

Cryptocurrency NEO-review and analysis of prospects

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The NEO digital asset platform was previously called Antshares. But in recent times, a complete rebranding has been made. In addition to the name change, the startup updated blockchain nodes and technical documentation, as well as the stock Ticker. In addition, the official website and social media were redesigned. The transition to a new version of the smart contract system, called NEO-2.0, was carried out.
The NEO cryptocurrency has been showing stable and non-stopping growth for a long time. Very quickly, the Chinese creation took seventh place in the top of Coinmarketcap. This, without a doubt, is a serious bid for prospects, given the high competition in the cryptocurrency market. And Ether confidently holds the second line after the famous Bitcoin. So the crypto currency NEO clearly has all the chances to rise much higher than the seventh line.
At the moment, the price fluctuates around $45. The cost for three months has increased 20 times.
The volumes of neo cryptocurrency reserves are clearly defined and limited to 100 million tokens. So far, only half of the available potential — 50 million tokens-is available on the market. So the crypto currency NEO clearly has all the chances to rise much higher than the seventh line.
The project is actively developing. OnChain cooperates with other players in the field of cryptocurrency and blockchain technologies. At the moment, there are connections with blockchain startups Coindash, Bancor, Agrello and others. The Chinese project Red Pulse has announced the creation of a financial research platform based on the NEO-2.0 smart contract system. Also, in cooperation with NEO, there is an intensive development of The Elastos operating system based on blockchain technologies.

THE history of the emergence and development of neo cryptocurrency

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The date of origin of the project can be considered 2014. NEO Creator Da Hongfei is a Director of Shanghai-based OnChain. In 2014, onchain, according to Da Hongfei's idea, launches the AntShares blockchain project. On the basis of this platform, a cryptocurrency of the same name was also created.
Yes Junpei put to the company is simple, but a global problem. His goal was to build a fundamentally new system of financial interaction. This system should unite the sectors of the real and virtual economy into a single whole with the help of high-tech contracts. And cryptocurrency from OnChain should become a unit of payment for these contracts.
Soon OnChain enters into a contract for cooperation with the Wings blockchain project, as well as contracts with economic giants Microsoft and Alibaba.
In August 2017 begins the story of NEO already in its current form with the current name. Da Hongfei carried out a complete rebranding and technical modernization of the project. The rebranding was a huge success, and the price of cryptocurrency from OnChain soared 40 times.
But not without problems. On the fourth of September, the Chinese authorities adopt a package of sanctions laws against cryptocurrencies and ICO. It was a heavy blow, which at the time almost 2 times brought down the course of the brainchild of Hongfei. However, soon the NEO cryptocurrency moved away from the blow and began to confidently win back the lost positions. At the moment, OnChain is actively upgrading the product and simultaneously trying to find a compromise with the Chinese authorities for the legalization and quiet operation of its offspring.

Features and principle of operation NEO

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From a technical point of view, the Chinese cryptocurrency is very similar to Ethereum. The basis of the platform is the construction of smart contracts and their subsequent payment with tokens. Also an important part of the project is the ability to create new technologies based on the platform, as well as easy integration with other services.
Despite the fact that NEO is often called "Chinese Ether" and the fact that the Ether still occupies a higher position in the ratings, the product from OnChain has advantages that the Ether lacks. NEO is much more practical and functional. This, no doubt, opens up the potential to move the Airwaves in the ratings in the near future.
Let's see in detail how everything works. Transactions within the system are possible when paying a Commission. The Commission is paid in-system currency. That is, for the transaction you have to throw in the system additional "fuel". The developers of OnChain decided to create an additional in-system currency, called GAS, as a fuel (a means of paying commissions).
NEO mining is impossible. There is a final coin value of 100 million. 50 million thrown on the market during the ICO. The second half of the developers keep at home. However, GAS mining is possible. However, it occurs when holding coins in a purse. That is, the more tokens you have, the more GAS coins you can get to pay commissions. Today, 2000 coins in the wallet accumulate 1 coin GAS every twenty-four hours. Such mining is associated with the work of the network on the Proof-Of-Stake algorithm. Coins generate themselves. Without the use of farms of video cards and megawatts of electricity.

Like any cryptocurrency, NEO has advantages and disadvantages.
The benefits of NEO:
  • the publicity of the company and experienced team;
  • contracts and cooperation with corporate giants;
  • a wide functionality, much superior to the functionality of Ether (it is difficult for a simple person to understand what the salt is, but for a specialist NEO opens the widest horizons for development and operations);
  • activity in meetings and seminars;
  • active struggle of OnChain for legalization (although there are some problems with this now in China, however, there is a high probability that soon all issues with the government will be settled, which will attract large investors and significantly increase the already considerable capitalization of NEO).
The shortcomings of NEO:
  • all gas storage nodes belong to OnChain, that is, NEO is a centralized structure, although it is served as decentralized, this means that blockchains are in the hands of a narrow circle;
  • OnChain has the technical ability to monitor the transactions of coin owners, transmit information to the authorities, as well as personally block funds in users ' accounts and regulate the rate.
However, there are great economic and technical prospects for the development and increase in the price of the coin.

Difference between NEO and Bitcoin

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The main points that distinguish NEO from Bitcoin:

  • Direct mining of NEO is not feasible, you can only mine GAS to pay commissions.
  • Bitcoin mining depends on the power of the technical base of the miner. The larger the pool of farms from video cards, the more active is the production. In the NEO system, gas mining occurs exclusively due to the presence of coins in the wallet.
  • To organize a large Bitcoin mining requires large purchases of iron and organization of production (supply of high-power power supply line, cooling system, etc.). A direct injection of investment is sufficient for the development of GAS. Each purchased 2000 coins of "Chinese ether" will steadily accumulate exactly 1 coin of GAS per day.
  • Bitcoin has the most decentralized system of blockchains, as opposed to pseudo-centralization of NEO.
  • The processing speed of one NEO block is only 15 seconds. For bitcoin-as much as ten minutes. In the future, it is predicted to accelerate the processing of blocks for NEO to 1 second.
Despite the risks associated with the organization of blockchains, NEO remains a very promising platform in the cryptocurrency market.

NEO storage wallets

On the official NEO website you can find links to the following wallets.
  1. Wallet NEON-Wallet from the group of independent developers City of Zion. Quite good, but the factor of third-party development and the presence of bugs impose their risks.
  2. NEO-CLI. This wallet is recommended only for programmers and people who are good at command line.
  3. NEO-GUI. The best option for the average user. To use it, you need to download the application, synchronize the blockchains and make a backup of the wallet. All. Now you can safely carry out financial transactions using Chinese kryptonite.
There is also the option of storing directly on the exchanges, however it is risky. Also, holding coins on an exchange rather than in a personal NEO wallet will not generate GAS.

NEO: buying and sharing

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NEO can be bought and sold on exchanges or exchanged in multi-currency wallets. The most famous exchanges:

  • Bittrex;
  • Binance;
  • CoinSpot;
  • YONBI;
  • JUBI;
  • Yuanbao;
  • 51szzc;
  • Yobtc.
As the value and popularity of NEO increases, a massive increase in trading platforms where you can buy or sell "Chinese Ether" is predicted.

Ways to get NEO

Unfortunately, at the moment there is no way FOR direct NEO mining in the manner of Bitcoins and Ether.
However, there is a way out. NEO cranes can be used. Cranes are resources where the user receives a cryptocurrency reward for performing certain tasks or participating in lotteries.
There is a high probability that if successful in the legalization negotiations, OneChain will provide additional ways to get their tokens.
As you can see, NEO is a very promising and rapidly developing cryptocurrency. And although the Chinese government has created some difficulties, on the example of Bitcoin, we see how high the rate of the crypto currency can rise if the factors interfering with the development disappear. So, the prospects of NEO are optimistic and you can risk investing in them.
submitted by AVAY11 to u/AVAY11 [link] [comments]

batching in Bitcoin

On May 6th, 2017, Bitcoin hit an all-time high in transactions processed on the network in a single day: it moved 375,000 transactions which accounted for a nominal output of about $2.5b. Average fees on the Bitcoin network had climbed over a dollar for the first time a couple days prior. And they kept climbing: by early June average fees hit an eye-watering $5.66. This was quite unprecedented. In the three-year period from Jan. 1 2014 to Jan. 1 2017, per-transaction fees had never exceeded 31 cents on a weekly average. And the hits kept coming. Before 2017 was over, average fees would top out at $48 on a weekly basis. When the crypto-recession set in, transaction count collapsed and fees crept back below $1.
During the most feverish days of the Bitcoin run-up, when normal users found themselves with balances that would cost more to send than they were worth, cries for batching — the aggregation of many outputs into a single transaction — grew louder than ever. David Harding had written a blog post on the cost-savings of batching at the end of August and it was reposted to the Bitcoin subreddit on a daily basis.
The idea was simple: for entities sending many transactions at once, clustering outputs into a single transaction was more space- (and cost-) efficient, because each transaction has a fixed data overhead. David found that if you combined 10 payments into one transaction, rather than sending them individually, you could save 75% of the block space. Essentially, batching is one way to pack as many transactions as possible into the finite block space available on Bitcoin.
When fees started climbing in mid-2017, users began to scrutinize the behavior of heavy users of the Bitcoin blockchain, to determine whether they were using block space efficiently. By and large, they were not — and an informal lobbying campaign began, in which these major users — principally exchanges — were asked to start batching transactions and be good stewards of the scarce block space at their disposal. Some exchanges had been batching for years, others relented and implemented it. The question faded from view after Bitcoin’s price collapsed in Q1 2018 from roughly $19,000 to $6000, and transaction load — and hence average fee — dropped off.
But we remained curious. A common refrain, during the collapse in on-chain usage, was that transaction count was an obfuscated method of apprehending actual usage. The idea was that transactions could encode an arbitrarily large (within reason) number of payments, and so if batching had become more and more prevalent, those payments were still occurring, just under a regime of fewer transactions.

“hmmm”
Some sites popped up to report outputs and payments per day rather than transactions, seemingly bristling at the coverage of declining transaction count. However, no one conducted an analysis of the changing relationship between transaction count and outputs or payments. We took it upon ourselves to find out.
Table Of Contents:
Introduction to batching
A timeline
Analysis
Conclusion
Bonus content: UTXO consolidation
  1. Introduction to batching
Bitcoin uses a UTXO model, which stands for Unspent Transaction Output. In comparison, Ripple and Ethereum use an account/balance model. In bitcoin, a user has no balances, only UTXOs that they control. If they want to transfer money to someone else, their wallet selects one or more UTXOs as inputs that in sum need to add up to the amount they want to transfer. The desired amount then goes to the recipient, which is called the output, and the difference goes back to the sender, which is called change output. Each output can carry a virtually unlimited amount of value in the form of satoshis. A satoshi is a unit representing a one-hundred-millionth of a Bitcoin. This is very similar to a physical wallet full of different denominations of bills. If you’re buying a snack for $2.50 and only have a $5, you don’t hand the cashier half of your 5 dollar bill — you give him the 5 and receive some change instead.
Unknown to some, there is no hardcoded limit to the number of transactions that can fit in a block. Instead, each transaction has a certain size in megabytes and constitutes an economic incentive for miners to include it in their block. Because miners have limited space of 2 MB to sell to transactors, larger transactions (in size, not bitcoin!) will need to pay higher fees to be included. Additionally, each transaction can have a virtually unlimited number of inputs or outputs — the record stands at transactions with 20,000 inputs and 13,107 outputs.
So each transaction has at least one input and at one output, but often more, as well as some additional boilerplate stuff. Most of that space is taken up by the input (often 60% or more, because of the signature that proves they really belong to the sender), while the output(s) account for 15–30%. In order to keep transactions as small as possible and save fees, Bitcoin users have two major choices:
Use as few inputs as possible. In order to minimize inputs, you can periodically send your smaller UTXOs to yourself in times when fees are very low, getting one large UTXO back. That is called UTXO consolidation or consolidating your inputs.
Users who frequently make transfers (especially within the same block) can include an almost unlimited amount of outputs (to different people!) in the same transaction. That is called transaction batching. A typical single output transaction takes up 230 bytes, while a two output transaction only takes up 260 bytes, instead of 460 if you were to send them individually.
This is something that many casual commentators overlook when comparing Bitcoin with other payment systems — a Bitcoin transaction can aggregate thousands of individual economic transfers! It’s important to recognize this, as it is the source of a great deal of misunderstanding and mistaken analysis.
We’ve never encountered a common definition of a batched transaction — so for the purposes of this study we define it in the loosest possible sense: a transaction with three or more outputs. Commonly, batching is understood as an activity undertaken primarily by mining pools or exchanges who can trade off immediacy for efficiency. It is rare that a normal bitcoin user would have cause to batch, and indeed most wallets make it difficult to impossible to construct batched transactions. For everyday purposes, normal bitcoiners will likely not go to the additional effort of batching transactions.
We set the threshold at three for simplicity’s sake — a normal unbatched transaction will have one transactional output and one change output — but the typical major batched transaction from an exchange will have dozens if not hundreds of outputs. For this reason we are careful to provide data on various different batch sizes, so we could determine the prevalence of three-output transactions and colossal, 100-output ones.
We find it helpful to think of a Bitcoin transaction as a mail truck full of boxes. Each truck (transaction) contains boxes (outputs), each of contains some number of letters (satoshis). So when you’re looking at transaction count as a measure of the performance and economic throughput of the Bitcoin network, it’s a bit like counting mail trucks to discern how many letters are being sent on a given day, even though the number of letters can vary wildly. The truck analogy also makes it clear why many see Bitcoin as a settlement layer in the future — just as mail trucks aren’t dispatched until they’re full, some envision that the same will ultimately be the case for Bitcoin.

Batching
  1. A timeline
So what actually happened in the last six months? Let’s look at some data. Daily transactions on the Bitcoin network rose steadily until about May 2017, when average fees hit about $4. This precipitated the first collapse in usage. Then began a series of feedback loops over the next six months in which transaction load grew, fees grew to match, and transactions dropped off. This cycle repeated itself five times over the latter half of 2017.

more like this on coinmetrics.io
The solid red line in the above chart is fees in BTC terms (not USD) and the shaded red area is daily transaction count. You can see the cycle of transaction load precipitating higher fees which in turn cause a reduction in usage. It repeats itself five or six times before the detente in spring 2018. The most notable period was the December-January fee crisis, but fees were actually fairly typical in BTC terms — the rising BTC price in USD however meant that USD fees hit extreme figures.
In mid-November when fees hit double digits in USD terms, users began a concerted campaign to convince exchanges to be better stewards of block space. Both Segwit and batching were held up as meaningful approaches to maximize the compression of Bitcoin transactions into the finite block space available. Data on when exchanges began batching is sparse, but we collected information where it was available into a chart summarizing when exchanges began batching.

Batching adoption at selected exchanges
We’re ignoring Segwit adoption by exchanges in this analysis; as far as batching is concerned, the campaign to get exchanges to batch appears to have persuaded Bitfinex, Binance, and Shapeshift to batch. Coinbase/GDAX have stated their intention to begin batching, although they haven’t managed to integrate it yet. As far as we can tell, Gemini hasn’t mentioned batching, although we have some mixed evidence that they may have begun recently. If you know about the status of batching on Gemini or other major exchanges please get in touch.
So some exchanges have been batching all along, and some have never bothered at all. Did the subset of exchanges who flipped the switch materially affect the prevalence of batched transactions? Let’s find out.
  1. Analysis
3.1 How common is batching?
We measured the prevalence of batching in three different ways, by transaction count, by output value and by output count.

The tl;dr.
Batching accounts for roughly 12% of all transactions, 40% of all outputs, and 30–60% of all raw BTC output value. Not bad.
3.2 Have batched transactions become more common over time?
From the chart in 3.1, we can already see a small, but steady uptrend in all three metrics, but we want to dig a little deeper. So we first looked at the relationship of payments (all outputs that actually pay someone, so total outputs minus change outputs) and transactions.

More at transactionfee.info/charts
The first thing that becomes obvious is that the popular narrative — that the drop in transactions was caused by an increase in batching — is not the case; payments dropped by roughly the same proportion as well.
Dividing payment count by transaction count gives us some insight into the relationship between the two.

In our analysis we want to zoom into the time frame between November 2017 and today, and we can see that payments per transactions have actually been rallying, from 1.5 payments per transaction in early 2017 to almost two today.
3.3 What are popular batch sizes?
In this next part, we will look at batch sizes to see which are most popular. To determine which transactions were batched, we downloaded a dataset of all transactions on the Bitcoin network between November 2017 and May 2018from Blockchair.
We picked that period because the fee crisis really got started in mid-November, and with it, the demands for exchanges to batch. So we wanted to capture the effect of exchanges starting to batch. Naturally a bigger sample would have been more instructive, but we were constrained in our resources, so we began with the six month sample.
We grouped transactions into “batched” and “unbatched” groups with batched transactions being those with three or more outputs.

We then divided batched transactions into roughly equal groups on the basis of how much total output in BTC they had accounted for in the six-month period. We didn’t select the batch sizes manually — we picked batch sizes that would split the sample into equal parts on the basis of transaction value. Here’s what we ended up with:

All of the batch buckets have just about the same fraction of total BTC output over the period, but they account for radically different transaction and output counts over the period. Notice that there were only 183,108 “extra large” batches (with 41 or more outputs) in the six-month period, but between them there were 23m outputs and 30m BTC worth of value transmitted.
Note that output value in this context refers to the raw or unadjusted figure — it would have been prohibitively difficult for us to adjust output for change or mixers, so we’re using the “naive” estimate.
Let’s look at how many transactions various batch sizes accounted for in the sample period:


Batched transactions steadily increased relative to unbatched ones, although the biggest fraction is the small batch with between 3 and 5 outputs. The story for output counts is a bit more illuminating. Even though batched transactions are a relatively small fraction of overall transaction count, they contain a meaningful number of overall outputs. Let’s see how it breaks down:


Lastly, let’s look at output value. Here we see that batched transactions represent a significant fraction of value transmitted on Bitcoin.


As we can see, even though batched transactions make up an average of only 12% of all transactions, they move between 30%-60% of all Bitcoins, at peak times even 70%. We think this is quite remarkable. Keep in mind, however that the ‘total output’ figure has not been altered to account for change outputs, mixers, or self-churn; that is, it is the raw and unadjusted figure. The total output value is therefore not an ideal approximation of economic volume on the Bitcoin network.
3.4 Has transaction count become an unreliable measure of Bitcoin’s usage because of batching?
Yes. We strongly encourage any analysts, investors, journalists, and developers to look past mere transaction count from now on. The default measure of Bitcoin’s performance should be “payments per day” rather than transaction count. This also makes Bitcoin more comparable with other UTXO chains. They generally have significantly variable payments-per-transaction ratios, so just using payments standardizes that. (Stay tuned: Coinmetrics will be rolling out tools to facilitate this very soon.)
More generally, we think that the economic value transmitted on the network is its most fundamental characteristic. Both the naive and the adjusted figures deserve to be considered. Adjusting raw output value is still more art than science, and best practices are still being developed. Again, Coinmetrics is actively developing open-source tools to make these adjustments available.
  1. Conclusion
We started by revisiting the past year in Bitcoin and showed that while the mempool was congested, the community started looking for ways to use the blockspace more efficiently. Attention quickly fell on batching, the practice of combining multiple outputs into a single transaction, for heavy users. We showed how batching works on a technical level and when different exchanges started implementing the technique.
Today, around 12% of all transactions on the Bitcoin network are batched, and these account for about 40% of all outputs and between 30–60% of all transactional value. The fact such that a small set of transactions carries so much economic weight makes us hopeful that Bitcoin still has a lot of room to scale on the base layer, especially if usage trends continue.
Lastly, it’s worth noting that the increase in batching on the Bitcoin network may not be entirely due to deliberate action by exchanges, but rather a function of its recessionary behavior in the last few months. Since batching is generally done by large industrial players like exchanges, mixers, payment processors, and mining pools, and unbatched transactions are generally made by normal individuals, the batched/unbatched ratio is also a strong proxy for how much average users are using Bitcoin. Since the collapse in price, it is quite possible that individual usage of Bitcoin decreased while “industrial” usage remained strong. This is speculation, but one explanation for what happened.
Alternatively, the industrial players appear to be taking their role as stewards of the scarce block space more seriously. This is a significant boon to the network, and a nontrivial development in its history. If a culture of parsimony can be encouraged, Bitcoin will be able to compress more data into its block space and everyday users will continue to be able to run nodes for the foreseeable future. We view this as a very positive development. Members of the Bitcoin community that lobbied exchanges to add support for Segwit and batching should be proud of themselves.
  1. Bonus content: UTXO consolidation
Remember that we said that a second way to systematically save transaction fees in the Bitcoin network was to consolidate your UTXOs when fees were low? Looking at the relationship between input count and output count allows us to spot such consolidation phases quite well.

Typically, inputs and outputs move together. When the network is stressed, they decouple. If you look at the above chart carefully, you’ll notice that when transactions are elevated (and block space is at a premium), outputs outpace inputs — look at the gaps in May and December 2017. However, prolonged activity always results in fragmented UTXO sets and wallets full of dust, which need to be consolidated. For this, users often wait until pressure on the network has decreased and fees are lower. Thus, after transactions decrease, inputs become more common than outputs. You can see this clearly in February/March 2017.

Here we’ve taken the ratio of inputs to outputs (which have been smoothed on a trailing 7 day basis). When the ratio is higher, there are more inputs than outputs on that day, and vice versa. You can clearly see the spam attack in summer 2015 in which thousands (possibly millions) of outputs were created and then consolidated. Once the ratio spikes upwards, that’s consolidation. The spike in February 2018 after the six weeks of high fees in December 2017 was the most pronounced sigh of relief in Bitcoin’s history; the largest ever departure from the in/out ratio norm. There were a huge number of UTXOs to be consolidated.
It’s also interesting to note where inputs and outputs cluster. Here we have histograms of transactions with large numbers of inputs or outputs. Unsurprisingly, round numbers are common which shows that exchanges don’t publish a transaction every, say, two minutes, but instead wait for 100 or 200 outputs to queue up and then publish their transaction. Curiously, 200-input transactions were more popular than 100-input transactions in the period.


We ran into more curiosities when researching this piece, but we’ll leave those for another time.
Future work on batching might focus on:
Determining batched transactions as a portion of (adjusted) economic rather than raw volume
Looking at the behavior of specific exchanges with regards to batching
Investigating how much space and fees could be saved if major exchanges were batching transactions
Lastly, we encourage everyone to run their transactions through the service at transactionfee.info to assess the efficiency of their transactions and determine whether exchanges are being good stewards of the block space.
Update 31.05.2018
Antoine Le Calvez has created a series of live-updated charts to track batching and batch sizes, which you can find here.
We’d like to thank 0xB10C for their generous assistance with datasets and advice, the people at Blockchair for providing the core datasets, and David A. Harding for writing the initial piece and answering our questions.
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Crypto and the Latency Arms Race: Crypto Exchanges and the HFT Crowd

Crypto and the Latency Arms Race: Crypto Exchanges and the HFT Crowd


News by Coindesk: Max Boonen
Carrying on from an earlier post about the evolution of high frequency trading (HFT), how it can harm markets and how crypto exchanges are responding, here we focus on the potential longer-term impact on the crypto ecosystem.
First, though, we need to focus on the state of HFT in a broader context.

Conventional markets are adopting anti-latency arbitrage mechanisms

In conventional markets, latency arbitrage has increased toxicity on lit venues and pushed trading volumes over-the-counter or into dark pools. In Europe, dark liquidity has increased in spite of efforts by regulators to clamp down on it. In some markets, regulation has actually contributed to this. Per the SEC:
“Using the Nasdaq market as a proxy, [Regulation] NMS did not seem to succeed in its mission to increase the display of limit orders in the marketplace. We have seen an increase in dark liquidity, smaller trade sizes, similar trading volumes, and a larger number of “small” venues.”
Why is non-lit execution remaining or becoming more successful in spite of its lower transparency? In its 2014 paper, BlackRock came out in favour of dark pools in the context of best execution requirements. It also lamented message congestion and cautioned against increasing tick sizes, features that advantage latency arbitrageurs. (This echoes the comment to CoinDesk of David Weisberger, CEO of Coinroutes, who explained that the tick sizes typical of the crypto market are small and therefore do not put slower traders at much of a disadvantage.)
Major venues now recognize that the speed race threatens their business model in some markets, as it pushes those “slow” market makers with risk-absorbing capacity to provide liquidity to the likes of BlackRock off-exchange. Eurex has responded by implementing anti-latency arbitrage (ALA) mechanisms in options:
“Right now, a lot of liquidity providers need to invest more into technology in order to protect themselves against other, very fast liquidity providers, than they can invest in their pricing for the end client. The end result of this is a certain imbalance, where we have a few very sophisticated liquidity providers that are very active in the order book and then a lot of liquidity providers that have the ability to provide prices to end clients, but are tending to do so more away from the order book”, commented Jonas Ullmann, Eurex’s head of market functionality. Such views are increasingly supported by academic research.
XTX identifies two categories of ALA mechanisms: policy-based and technology-based. Policy-based ALA refers to a venue simply deciding that latency arbitrageurs are not allowed to trade on it. Alternative venues to exchanges (going under various acronyms such as ECN, ATS or MTF) can allow traders to either take or make, but not engage in both activities. Others can purposefully select — and advertise — their mix of market participants, or allow users to trade in separate “rooms” where undesired firms are excluded. The rise of “alternative microstructures” is mostly evidenced in crypto by the surge in electronic OTC trading, where traders can receive better prices than on exchange.
Technology-based ALA encompasses delays, random or deterministic, added to an exchange’s matching engine to reduce the viability of latency arbitrage strategies. The classic example is a speed bump where new orders are delayed by a few milliseconds, but the cancellation of existing orders is not. This lets market makers place fresh quotes at the new prevailing market price without being run over by latency arbitrageurs.
As a practical example, the London Metal Exchange recently announced an eight-millisecond speed bump on some contracts that are prime candidates for latency arbitrageurs due to their similarity to products trading on the much bigger CME in Chicago.
Why 8 milliseconds? First, microwave transmission between Chicago and the US East Coast is 3 milliseconds faster than fibre optic lines. From there, the $250,000 a month Hibernia Express transatlantic cable helps you get to London another 4 milliseconds faster than cheaper alternatives. Add a millisecond for internal latencies such as not using FPGAs and 8 milliseconds is the difference for a liquidity provider between investing tens of millions in speed technology or being priced out of the market by latency arbitrage.
With this in mind, let’s consider what the future holds for crypto.

Crypto exchanges must not forget their retail roots

We learn from conventional markets that liquidity benefits from a diverse base of market makers with risk-absorption capacity.
Some have claimed that the spread compression witnessed in the bitcoin market since 2017 is due to electronification. Instead, I posit that it is greater risk-absorbing capacity and capital allocation that has improved the liquidity of the bitcoin market, not an increase in speed, as in fact being a fast exchange with colocation such as Gemini has not supported higher volumes. Old-timers will remember Coinsetter, a company that, per the Bitcoin Wiki , “was created in 2012, and operates a bitcoin exchange and ECN. Coinsetter’s CSX trading technology enables millisecond trade execution times and offers one of the fastest API data streams in the industry.” The Wiki page should use the past tense as Coinsetter failed to gain traction, was acquired in 2016 and subsequently closed.
Exchanges that invest in scalability and user experience will thrive (BitMEX comes to mind). Crypto exchanges that favour the fastest traders (by reducing jitter, etc.) will find that winner-takes-all latency strategies do not improve liquidity. Furthermore, they risk antagonising the majority of their users, who are naturally suspicious of platforms that sell preferential treatment.
It is baffling that the head of Russia for Huobi vaunted to CoinDesk that: “The option [of co-location] allows [selected clients] to make trades 70 to 100 times faster than other users”. The article notes that Huobi doesn’t charge — but of course, not everyone can sign up.
Contrast this with one of the most successful exchanges today: Binance. It actively discourages some HFT strategies by tracking metrics such as order-to-trade ratios and temporarily blocking users that breach certain limits. Market experts know that Binance remains extremely relevant to price discovery, irrespective of its focus on a less professional user base.
Other exchanges, take heed.
Coinbase closed its entire Chicago office where 30 engineers had worked on a faster matching engine, an exercise that is rumoured to have cost $50mm. After much internal debate, I bet that the company finally realised that it wouldn’t recoup its investment and that its value derived from having onboarded 20 million users, not from upgrading systems that are already fast and reliable by the standards of crypto.
It is also unsurprising that Kraken’s Steve Hunt, a veteran of low-latency torchbearer Jump Trading, commented to CoinDesk that: “We want all customers regardless of size or scale to have equal access to our marketplace”. Experience speaks.
In a recent article on CoinDesk , Matt Trudeau of ErisX points to the lower reliability of cloud-based services compared to dedicated, co-located and cross-connected gateways. That much is true. Web-based technology puts the emphasis on serving the greatest number of users concurrently, not on serving a subset of users deterministically and at the lowest latency possible. That is the point. Crypto might be the only asset class that is accessible directly to end users with a low number of intermediaries, precisely because of the crypto ethos and how the industry evolved. It is cheaper to buy $500 of bitcoin than it is to buy $500 of Microsoft shares.
Trudeau further remarks that official, paid-for co-location is better than what he pejoratively calls “unsanctioned colocation,” the fact that crypto traders can place their servers in the same cloud providers as the exchanges. The fairness argument is dubious: anyone with $50 can set up an Amazon AWS account and run next to the major crypto exchanges, whereas cheap co-location starts at $1,000 a month in the real world. No wonder “speed technology revenues” are estimated at $1 billion for the major U.S. equity exchanges.
For a crypto exchange, to reside in a financial, non-cloud data centre with state-of-the-art network latencies might ironically impair the likelihood of success. The risk is that such an exchange becomes dominated on the taker side by the handful of players that already own or pay for the fastest communication routes between major financial data centres such as Equinix and the CME in Chicago, where bitcoin futures are traded. This might reduce liquidity on the exchange because a significant proportion of the crypto market’s risk-absorption capacity is coming from crypto-centric funds that do not have the scale to operate low-latency strategies, but might make up the bulk of the liquidity on, say, Binance. Such mom-and-pop liquidity providers might therefore shun an exchange that caters to larger players as a priority.

Exchanges risk losing market share to OTC liquidity providers

While voice trading in crypto has run its course, a major contribution to the market’s increase in liquidity circa 2017–2018 was the risk appetite of the original OTC voice desks such as Cumberland Mining and Circle.
Automation really shines in bringing together risk-absorbing capacity tailored to each client (which is impossible on anonymous exchanges) with seamless electronic execution. In contrast, latency-sensitive venues can see liquidity evaporate in periods of stress, as happened to a well-known and otherwise successful exchange on 26 June which saw its bitcoin order book become $1,000 wide for an extended period of time as liquidity providers turned their systems off. The problem is compounded by the general unavailability of credit on cash exchanges, an issue that the OTC market’s settlement model avoids.
As the crypto market matures, the business model of today’s major cash exchanges will come under pressure. In the past decade, the FX market has shown that retail traders benefit from better liquidity when they trade through different channels than institutional speculators. Systematic internalizers demonstrate the same in equities. This fact of life will apply to crypto. Exchanges have to pick a side: either cater to retail (or retail-driven intermediaries) or court HFTs.
Now that an aggregator like Tagomi runs transaction cost analysis for their clients, it will become plainly obvious to investors with medium-term and long-term horizons (i.e. anyone not looking at the next 2 seconds) that their price impact on exchange is worse than against electronic OTC liquidity providers.
Today, exchange fee structures are awkward because they must charge small users a lot to make up for crypto’s exceptionally high compliance and onboarding costs. Onboarding a single, small value user simply does not make sense unless fees are quite elevated. Exchanges end up over-charging large volume traders such as B2C2’s clients, another incentive to switch to OTC execution.
In the alternative, what if crypto exchanges focus on HFT traders? In my opinion, the CME is a much better venue for institutional takers as fees are much lower and conventional trading firms will already be connected to it. My hypothesis is that most exchanges will not be able to compete with the CME for fast traders (after all, the CBOE itself gave up), and must cater to their retail user base instead.
In a future post, we will explore other microstructures beyond all-to-all exchanges and bilateral OTC trading.
Fiber threads image via Shutterstock
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I’ve been researching privacy coins deeply and feel I’ve reached a sufficient findings to merit sharing my stance re SUMO.

By Taylor Margot. Everyone should read this!
THE BASICS
SUMOkoin is a fork of MONERO (XMR). XMR is a fork of Bytecoin. In my opinion, XMR is hands down the most undervalued coin in the top 15. Its hurdle is that people do not know how to price in privacy to the price of a coin yet. Once people figure out how to accurately assess the value privacy into the value of a coin, XMR, along with other privacy coins like SUMOkoin, will go parabolic.
Let’s be clear about something. I am not here to argue SUMOkoin is superior to XMR. That’s not what this article is about and frankly is missing the point. I don’t find the SUMOkoin vs. XMR debate interesting. From where I stand, investing in SUMOkoin has nothing to do with SUMOkoin overtaking XMR or who has superior tech. If anything, I think the merits of XMR underline the value of SUMOkoin. What I do find interesting is return on investment (“ROI”).
Imagine SUMO was an upcoming ICO. But you knew ahead of time that they had a proven product-market fit and an awesome, blue chip code base. That’s basically what you have in SUMO. Most good ICOs raise over 20mil (meaning their starting market cap is $20 mil) but after that, it’s a crapshoot. Investing in SUMO is akin to getting ICO prices but with the amount of information associated with more established coins.
Let me make one more thing clear. Investing is all about information. Specifically it’s about the information imbalance between current value and the quality of your information. SUMO is highly imbalanced.
The fact of the matter is that if you are interested in getting the vision and product/market fit of a $6 billion market cap coin for $20 mil, you should keep reading.
If you are interested in arguing about XMR vs. SUMOkoin, I point you to this infographic
Background
I’m a corporate tech & IP lawyer in Silicon Valley. My practice focuses on venture capital (“VC)”) and mergers & acquisitions (“M&A”). Recently I have begun doing more IP strategy. Basically I spend all day every day reviewing cap tables, stock purchase agreements, merger agreements and patent portfolios. I’m also the CEO of a startup (Scry Chat) and have a team of three full-time engineers.
I started using BTC in 2014 in conjunction with Silk Road and TOR. I recently had a minor conniption when I discovered how much BTC I handled in 2014. My 2017 has been good with IOTA at sub $0.30, POWR at $0.12, ENJIN at $0.02, REQ at $0.05, ENIGMA at $0.50, ITC (IoT Chain) and SUMO.
My crypto investing philosophy is based on betting long odds. In the words of Warren Buffet, consolidate to get rich, diversify to stay rich. Or as I like to say, nobody ever got rich diversifying.
That being said I STRONGLY recommend you have an IRA and/or 401(k) in place prior to venturing into crypto. But when it comes to crypto, I’d rather strike out dozens of times to have a chance at hitting a 100x home run. This approach is probably born out of working with VCs in Silicon Valley who do the same only with companies, not coins. I view myself as an aggressive VC in the cryptosphere.
The Number 1 thing I’ve taken away from venture law is that it pays to get in EARLY.
Did you know that the typical founder buys their shares for $0.00001 per share? So if a founder owns 5 million shares, they bought those shares for $50 total. The typical IPO goes out the door at $10-20 per share. My iPhone calculator says ERROR when it tries to divide $10/0.00001 because it runs out of screen real estate.
At the time of this writing, SUMO has a Marketcap of $18 million. That is 3/10,000th or 1/3333th. Let that sink in for a minute. BCH is a fork of BTC and it has the fourth largest market cap of all cryptos. Given it’s market cap, I am positive SUMO is the best value proposition in the Privacy Coin arena at the time of this writing. *
ROI MERITS OF SUMOkoin
So what’s so good about SUMOkoin? Didn’t you say it was just a Monero knock-off?
1) Well, sort of. SUMO is based on CryptoNote and was conceived from a fork of Monero, with a little bit of extra privacy thrown in. It would not be wrong to think SUMO is to Litecoin as XMR is to Bitcoin.
2) Increased Privacy. Which brings us to point 2. SUMO is doing several things to increase privacy (see below). If Monero is the King of Privacy Coins, then SUMO is the Standard Bearer fighting on the front lines. Note: Monero does many of these too (though at the time of fork XMR could not). Don’t forget Monero is also 5.8 billion market cap to SUMO’s 18 million.
a) RingCT. All transactions since genesis are RingCT (ring confidential transactions) and the minimum “mixin” transactions is 13 (12 plus the original transaction). This passes the threshold to statistically resist blockchain attacks. No transactions made on the SUMO blockchain can ever be traced to the actual participants. Nifty huh? Monero (3+1 mixins) is considering a community-wide fork to increase their minimum transactions to 6, 9, or 12. Not a bad market signal if you’re SUMOkoin eh?
b) Sub-addresses. The wallet deploys disposable sub-addresses to conceal your real sumo wallet address even from senders (who typically would need to know your actual address to send currency). Monero also does this.
3) Fungibility aka “Digital Cash” aka Broad Use Case. “Fungibility” gets thrown about a bunch but basically it means ‘how close is this coin to cash in terms of usage?’ SUMO is one of a few cryptos that can boast true fungibility — it acts just like physical cash i.e. other people can never trace where the money came from or how many coins were transferred. MONERO will never be able to boast this because it did not start as fungible.
4) Mining Made Easy Mode. Seeing as SUMO was a fork, and not an ICO, they didn’t have to rewrite the wheel. Instead they focused on product by putting together solid fundamentals like a great wallet and a dedicated mining app. Basically anyone can mine with the most intuitive GUI mining app out there. Google “Sumo Easy Miner” – run and mine.
5) Intuitive and Secure Wallet. This shouldn’t come as a surprise, yet in this day and age, apparently it is not a prereq. They have a GUI wallet plus those unlimited sub-addresses I mentioned above. Here’s the github if you’d like to review: https://github.com/sumoprojects/SumoGUIWallet The wallet really is one of the best I have seen (ENJIN’s will be better). Clear, intuitive, idiot proof (as possible).
6) Decentralization. SUMO is botnet-proof, and therefore botnet mining resistant. When a botnet joins a mining pool, it adjusts the mining difficulty, thereby balancing the difficulty level of mining.
7) Coin Emission Scheme. SUMO’s block reward changes every 6-months as the following “Camel” distribution schema (inspired by real-world mining production like of crude oil, coal, etc. that is often slow at first, then accelerated in before decline and depletion). MONERO lacks this schema and it is significant. Camel ensures that Sumokoin won’t be a short-lived phenomena. Specifically, since Sumo is proof-of-work, not all SUMO can be mined. If it were all mined, miners would no longer be properly incentivized to contribute to the network (unless transaction fees were raised, which is how Bitcoin plans on handling when all 21 million coins have been mined, which will go poorly given that people already complain about fees). A good emission scheme is vital to viability. Compare Camel and Monero’s scheme if you must: https://github.com/sumoprojects/sumokoin/blob/mastescripts/sumokoin_camel_emission_cal.cpp vs. https://monero.stackexchange.com/questions/242/how-was-the-monero-emission-curve-chosen/247.
8) Dev Team // Locked Coins // Future Development Funds. There are lots of things that make this coin a ‘go.’ but perhaps the most overlooked in crypto is that the devs have delivered ahead of schedule. If you’re an engineer or have managed CS projects, you know how difficult hitting projected deadlines can be. These guys update github very frequently and there is a high degree of visibility. The devs have also time-locked their pre-mine in a publicly view-able wallet for years so they aren’t bailing out with a pump and dump. The dev team is based in Japan.
9) Broad Appeal. If marketed properly, SUMO has the ability to appeal to older individuals venturing into crypto due to the fungibility / similarities to cash. This is not different than XMR, and I expect it will be exploited in 2018 by all privacy coins. It could breed familiarity with new money, and new money is the future of crypto.
10) Absent from Major Exchanges. Thank god. ALL of my best investments have happened off Binance, Bittrex, Polo, GDAX, etc. Why? Because by the time a coin hits a major exchange you’re already too late. Your TOI is fucked. You’re no longer a savant. SUMO is on Cryptopia, the best jenky exchange.
11) Marketing. Which brings me to my final point – and it happens to be a weakness. SUMO has not focused on marketing. They’ve instead gathered together tech speaks for itself (or rather doesn’t). So what SUMO needs a community effort to distribute facts about SUMO’s value prop to the masses. A good example is Vert Coin. Their team is very good at disseminating information. I’m not talking about hyping a coin; I’m talking about how effectively can you spread facts about your product to the masses.
To get mainstream SUMO needs something like this VertCoin post: https://np.reddit.com/vertcoin/comments/7ixkbf/vertbase_a_vertcoin_to_usd_exchange/
MARKET CAP DISCUSSION
For a coin with using Monero’s tech, 20 million is minuscule. For any coin 20 mil is nothing. Some MC comparisons [as of Jan 2, 2017]:
Let’s talk about market cap (“MC”) for a minute.
It gets tossed around a lot but I don’t think people appreciate how important getting in as early as possible can be. Say you buy $1000 of SUMO at 20 mil MC. Things go well and 40 million new money gets poured into SUMO. Now the MC = 60 million. Your ROI is 200% (you invested $1,000 and now you have 3,000, netting 2,000).
Now let’s says say you bought at 40 million instead of 20 million. $20 mill gets poured in until the MC again reaches 60 mil. Your ROI is 50% (you put in $1,000, you now have 1,500, netting 500).
Remember: investing at 20 mil MC vs. 40 mil MC represents an EXTREMELY subtle shift in time of investment (“TOI”). But the difference in net profit is dramatic. the biggest factor is that your ROI multiplier is locked in at your TOI — look at the difference in the above example. 200% ROI vs. 50% ROI. That’s huge. But the difference was only 20 mil — that’s 12 hours in the crypto world.
I strongly believe SUMO can and will 25x in Q1 2018 (400m MC) and 50x by Q4 2018 reach. There is ample room for a tricked out Monero clone at 1 bil MC. That’s 50x.
Guess how many coins have 500 mil market caps? 58 as of this writing. 58! Have many of these coins with about ~500 mil MC have you heard of?
MaidSafeCoin?
Status?
Decred?
Veritaseum?
DRAGONCHAIN ARE YOU KIDDING ME
THE ROLE OF PRIVACY
I want to close with a brief discussion of privacy as it relates to fundamental rights and as to crypto. 2018 will be remembered as the Year of Privacy Coins. Privacy has always been at the core of crypto. This is no coincidence. “Privacy” is the word we have attached to the concept of possessing the freedom to do as you please within the law without explaining yourself to the government or financial institution.
Discussing privacy from a financial perspective is difficult because it has very deep political significance. But that is precisely why it is so valuable.
Privacy is the right of billions of people not to be surveilled. We live in a world where every single transaction you do through the majority financial system is recorded, analyzed and sold — and yet where the money goes is completely opaque. Our transactions are visible from the top, but we can’t see up. Privacy coins turn that upside down.
Privacy is a human right. It is the guarantor of American constitutional freedom. It is the cornerstone of freedoms of expression, association, political speech and all our other freedoms for that matter. And privacy coins are at the root of that freedom. What the internet did for freedom of information, privacy coins will do for freedom of financial transactions.
POST SCRIPT: AN ENGINEER’S PERSPECTIVE
Recently a well respected engineer reached out to me and had this to say about SUMO. I thought I’d share.
"I’m messaging you because I came at this from a different perspective. For reference, I started investing in Sumo back when it was around $0.5 per coin. My background is in CS and Computer Engineering. I currently research in CS.
When I was looking for a coin to invest in, I approached it in a completely different way from what you described in your post, I first made a list of coins with market caps < 20m, and then I removed all the coins that didn’t have active communities.
Next, because of my background, I read through the code for each of the remaining coins, and picked the coins which had both frequent commits to GitHub (proving dev activity), and while more subjective, code that was well written. Sumo had both active devs, and (very) well written code.
I could tell that the people behind this knew what they were doing, and so I invested.
I say all of this, because I find it interesting how we seem to have very different strategies for selecting ‘winners’ but yet we both ended up finding Sumo."

Legal Disclaimer:
THIS POST AND ANY SUBSEQUENT STATEMENTS BY THE AUTHOR DO NOT CONSTITUTE LEGAL OR FINANCIAL ADVICE AND IS NOT INTENDED TO BE LEGAL OR FINANCIAL ADVICE OR RELIED UPON. NO REFERENCES TO THIS POST SHALL BE CONSTRUED AS LEGAL OR FINANCIAL ADVICE. THIS POST REPRESENTS THE LONE OPINION OF A NON-SOPHISTICATED INVESTOR.
submitted by MaesterEmi to CryptoCurrency [link] [comments]

All About Zcoin

All About Zcoin

https://preview.redd.it/hixbz9f3lxm31.jpg?width=1200&format=pjpg&auto=webp&s=43896de84a3693d840c84057c0314af71718f0a3
What is Zcoin?
Zcoin, also referred to as XZC or Zerocoin, is an open source decentralized cryptocurrency that provides privacy and anonymity for its users when making transactions.
To achieve its privacy and anonymity, Zcoin uses zero-knowledge proofs via the Zerocoin protocol, which is at this moment in time one of the most cited cryptography papers.
According to Wikipedia, in cryptography, a zero-knowledge proof or zero-knowledge protocol is a method in which one party proves to another party (the verifier) that a given statement is actually true.
In other words, in a transaction with Bitcoin or Ethereum or something similar, your transaction history is always linked to your coins by default, leaving you vulnerable. All it takes is one link to your personal information or IP to find out the origin of the coins.
However, when you trade with Zcoin’s Zercoin feature, your transaction history is not linked to the actual coins. Only the receiver and sender know that the funds have actually been exchanged.

How Does Zcoin Work?

Zcoin works on the Zerocoin protocol by enforcing Zero-knowledge proofs. Here are the components of Zcoin to explain how it works.
Mint: When sending a private transaction with Zcoin, all you need to do is select the number of coins you want to mint. Post that your normal Zcoin balance would reduce automatically and you will be credited with new coins and no transaction history. In essence, your old coins are burned cryptographically, which prevents anyone else from using them again and being directed to your transaction history. You get credited with new coins with no history, while the total supply is maintained.
For now, you can only mint in denominations of 1, 10, 25, 50 and 100. If you choose ‘100’ coins to be minted, for instance, you will instantly be credited with 100 new Zcoins with no history attached to them.
  • Spend: When you want to make a private transaction, you will be required to use these ‘100’ newly minted coins. From this pool of funds, you can now send any amount in any denomination to anyone anonymously because no history is attached to it.
  • Repeat: You can ‘mint’ and ‘send’ Zcoins any number of times at anytime with your privacy intact.

Zcoin’s Vision

Zcoin seeks to improve things that Bitcoin hasn’t been able to so far, some of which include fungibility, privacy and miner’s centralization.
Users of Zcoin can enjoy full fungibility and privacy along with demolishing miner’s centralization by implementing a better proof of work algorithm called MTP.
Total Zcoin supply
Only 21 million units of Zcoin will ever be produced. Currently, there are about 3.4 million units in circulation, with the rest yet to be mined.
But the total supply has increased by 388450 XZC units after a Zcoin code bug, which the team refused to roll back due to economic reasons, which is why the total supply stands at approximately 21.4 million.
Every 10 minutes, a Zcoin block is mined and 50 coins are generated, making 72,000 Zcoins per day.
Market cap of Zcoin
According to CoinMarketCap, the total circulating supply of Zcoin is 5,757,841 XZC and the current unit price is $9.6. That makes the market cap approximately $55 million*.*
https://preview.redd.it/qw2igvupoxm31.png?width=1080&format=png&auto=webp&s=cfaa195d5d75ba8f20e5894d0351b2eabf76825a

How To Buy Zcoin Cryptocurrency

If you are looking to get some Zcoin, here is a list of resources where it can be bought from.
  • Atomars – Supported pairs are XZC/BTC, XZC/ETH, XZC/USDT
  • Binance - Supported pairs are XZC/BTC, XZC/ETH, XZC/BNB
  • Huobi - Supported pairs are XZC/BTC, XZC/ETH
  • Bittrex - Supported pairs are XZC/BTC
  • Cryptopia - Supported pairs are XZC/BTC, XZC/LTC, XZC/DOGE
  • CoinExchange - Supported pairs are XZC/BTC
  • LiteBit.eu - Supported pairs are XZC/EUR
Note: At the moment, buying XZC in fiat currencies such as USD, EUR, or GBP is quite difficult.
https://preview.redd.it/rrwao97woxm31.png?width=1460&format=png&auto=webp&s=442bf152f86a63300c5c4a029bb07369a69e6f70
Zcash:
Zcash is a decentralized and open-source peer-to-peer cryptocurrency that provides strong privacy protections. It was created as a fork of Bitcoin and, like bitcoin, it also has a hard limit of 21 million coins. Unlike bitcoin, however, Zcash offers total privacy for its users maintaining the absolute anonymity behind each transaction along with the parties and the amounts involved in it.
PIVX:
PIVX, which stands for Private Instant Verified Transaction, is an open-source, decentralized form of digital online money that uses blockchain technology. This makes it easy to transfer all around the world in an instant with low transaction fees with market leading security & privacy. PIVX focuses on privacy, security, anonymity, and instant transactions.
Monero:
Monero is a fast, private, secure and untraceable digital currency system that uses a special kind of cryptography to keep all its transactions 100% unlinkable and untraceable. With Monero, you are your own bank. You can spend safely, knowing that others cannot see your balances or track your activity.
Some Zcoin misconceptions
There are some misconceptions regarding Zcoin:
  • Some believe that, since Zcoin has a trusted setup that allows indefinite minting of coins, it is not safe. This is untrue. Of course, to start with they had to use a trusted setup because they have an auditable total coin supply that prevents any form of cheating. This downside however, is being taken care of by removing this trusted setup in the near future and when that happens, Zcoin will be one of the serious coins to count on for privacy.
  • Zcoin has been considered as Zcash’s fork but that is also not true because Zcash is based on the Zerocash protocol whereas Zcoin was started from scratch by applying Zerocoin tech.
Now that some of the Zcoin’s misconceptions have been cleared, here’s a look into its future.

Zcoin’s Future & Roadmap

Zcoin’s future is quite promising and worth watching based on these interesting milestones on their roadmap:
  • Zcoin is the first coin to implement MTP proof of work, which makes it possible for general masses to mine Zcoin with GPUs and CPUs. MTP doesn’t allow costly ASIC-like miners to mine XZC coins.
  • Zcoin is also implementing Znodes to make their cryptocurrency more decentralized and anonymous. These Znodes will be like masternodes and facilitate anonymous transactions as making an anonymous transaction single-handedly is quite computational.
  • Znodes will be incentivized by reducing some portion of the founder’s reward. Also, the surplus funds that get generated from the founder’s reward reduction would be used for hiring new developers and increased marketing efforts.
  • Another agenda on their roadmap is to bring inbuilt Tor or some IP obfuscation mechanism that will make it completely anonymous.
  • Apart from these, some innovative and exciting things like sigma protocol, decentralized anonymous voting and Zcoin Labs are on their roadmap, making this project worth checking out.
  • Last but not least, its recent price is a good indicator of its healthy market sentiment and shows that there are people who understand this project’s worth. Just to put things into perspective – a unit of Zcoin was priced $2 in March 2017 and now it is $37*.*

Zcoin Team & Progress

Zerocoin is a cryptocurrency proposed by professor Matthew D. Green, a professor of Johns Hopkins University, and graduate students Ian Miers and Christina Garman. It was proposed as an extension to the Bitcoin protocol that would add true cryptographic anonymity to Bitcoin transactions.
Zerocoin was first implemented into a fully functional cryptocurrency and released to the public by Poramin Insom, the lead developer, as Zcoin in September 2016.
Some of the notable dev members of the team are listed below.
Poramin Insom
Founder and Core Developer
Poramin Insom created what was the world's 4th most valuable cryptocurrency in February 2014. He is also the world's first person to implement stealth addresses in QT-Wallets, improving cryptocurrency anonymity. He earned a master’s degree in Information Security from Johns Hopkins University, where he wrote a paper on a proposed practical implementation of the Zerocoin protocol.
Alexander N.
Developer
Alexander N. aka Aizensou is a full-stack developer who has experience in many programming languages (C++, C#, Python, Perl, Java etc.) and has been involved in the cryptocurrency space since 2013. He has a broad development portfolio from low level APIs in Python and C++ to Android native applications in Java. In addition to his involvement in cryptocurrencies, Alexander was doing his P.h.D. in machine learning at a German university from 2012 to 2016.
Saran Siriphantnon
Developer
Saran Siriphantnon is the CTO of Satang.co/Satoshift, a fintech company focusing on creating an open financial system for Southeast Asia. He served as President of the Computer System Administrator Group at King Mongkut's Institute of Technology Ladkrabang.
Tadhg Riordan
Solidity Developer
Tadhg Riordan is a 24 year old Software Developer from Wexford, Ireland. He recently completed his MSc from Trinity College Dublin, where he worked with Blockchain privacy mechanisms, focusing particularly on Zero-Knowledge Proofs and the Ethereum platform. He is a strong advocate for the adoption of cryptocurrency and for complete financial privacy.
Apart from these, their team comprises of other developers, community managers, support personnel and advisors who maintain the required balance.

Advisors:

Aram Jivanyan (Cryptography Advisor): Co-Founder at Skycryptor & KMSchai
Torphop Korgtadam (It Security Consultant): Senior Vice President, Head Of Internal Audit Strategy, Innovation and Decision Science at United Overseas Bank Limited
Alexander N. aka Aizensou (Advisor)

Unique/Key Features Against Its Competitors:

  • Anonymous transactions. The project establishes a notably higher level of anonymity and seeks to bypass current analysis techniques which governments use to reveal the identity of users.
  • Not subject to transaction graph analysis. Zcoin has an anonymity set that encompasses all minted coins in a particular RSA accumulator that can scale to many thousands.
  • Innovative process. Tokens are burned cryptographically and replaced with new coins without a transaction history. This actively prevents anyone else from using the tokens again and stops the public from being directed to a user's transaction history.
  • Transparency focused. Zcoin's main advantage is its auditable money supply.
submitted by atomarsofficial to Atomars [link] [comments]

Ethereum la gi Nhung khai niem xung quanh Ethereum ETH ma ban nen biet

Ethereum la gi Nhung khai niem xung quanh Ethereum ETH ma ban nen biet

Ethereum là gì? Những khái niệm xung quanh Ethereum (ETH) mà bạn nên biết?


Xem thêm bài viết tại đây.

Bên cạnh Bitcoin, Ethereum (ETH) cũng là một đồng cryptocurrency xuất hiện ngày càng dày đặc trong đời sống hàng ngày của chúng ta. Vậy Ethereum là gì? Ethereum khác gì so với Bitcoin và các đồng tiền mã hóa khác? Và những khái niệm cơ bản nhất về Ethereum mà chúng ta cần phải biết là gì?

1. Ethereum là gì?

Ethereum (đôi khi được gọi là tiền ảo Ethereum nhưng cụm từ này không chính xác, Ethereum là tiền mã hóa) là một đồng cryptocurrency được xây dựng vào năm 2013 bởi Vitalik Buterin.
Ethereum còn là một nền tảng để xây dựng nên nhiều đồng coin và các ứng dụng phân quyền khác. Qua nhiều năm, Ethereum đã tạo nên hệ sinh thái phi tập trung vững mạnh của mình.

Ethereum là gì?
Vitalik Buterin muốn khắc phục những nhược điểm của Bitcoin như phí thanh toán cao, thời gian thanh toán chậm và khuyến khích đào coin thông qua các mining pool thay vì chỉ đào riêng lẻ như Bitcoin. Từ đó, đồng Altcoin hàng đầu thị trường là Ethereum đã ra đời.

2. Ether là gì?

Dù không ai sở hữu hay kiểm soát Ethereum, nhưng hệ thống hỗ trợ này không hề miễn phí. Thay vào đó, network cần Ether, một đoạn mã (code) duy nhất được sử dụng, chi trả cho các tài nguyên tính toán cần thiết để chạy một ứng dụng hoặc chương trình.
Giống như Bitcoin, Ether là tài sản số vô danh (tương tự như chứng khoán, trái phiếu được phát hành). Cũng giống như tiền mặt, nó không cần đến bên thứ ba nào xử lý hay phê duyệt giao dịch. Nhưng thay vì hoạt động như một đồng tiền số hay đơn vị thanh toán thông thường, Ether được xem như “nhiên liệu”, là “gas” cho các ứng dụng phân quyền trên network.
Chúng tôi sẽ lấy một ví dụ để dễ hiểu hơn, chẳng hạn như một cuốn sổ ghi chú trực tuyến phân quyền. Để đăng, xóa hay sửa đổi ghi chú trên đó, bạn cần trả một khoản phí giao dịch bằng Ether để đưa network xử lý sự thay đổi. Phí giao dịch Ethereum được tính toán dựa trên mức “gas” tiêu hao cho hành động cụ thể nào đó.

Ether là gì?

Là một hệ thống kinh tế, các quy tắc cho nền kinh tế của Ethereum là vô thời hạn, có thể mở rộng được. Ngược lại với Bitcoin chỉ có giới hạn phát hành là 21 triệu coin, người ta vẫn chưa ấn định giới hạn cho Ethereum.
Trong số hơn 96 triệu ETH đã phát hành, có khoảng 60 triệu coin được mua từ đợt crownfunding vào năm 2014. Khoảng 12 triệu ETH được góp vào quỹ Ethereum Foundation. Mỗi 12 giây, 5 ETH cũng được phân bổ đến cho các miner mang nhiệm vụ xác minh các giao dịch trên network.
Mỗi năm, các miner khai thác được khoảng 18 triệu ETH. 5 ETH được tạo ra khoảng 12 giây/lần, bất cứ khi nào miner phát hiện ra một block, hoặc một chuỗi các giao dịch. Vì vậy, không ai biết được giới hạn cung của ETH là bao nhiêu. Tốc độ tạo ra ETH cũng không còn rõ ràng sau năm 2017, khi Ethereum lên kế hoạch chuyển sang sử dụng thuật toán đồng thuận Proof-of-Stake.
Điều này có thể dẫn đến nhiều thay đổi trong các quy tắc tạo ra Ether. Do đó trợ cấp (phần thưởng) dành cho các miner có thể giảm xuống.

3. Gas Limit Ethereum là gì?

Như đã nói ở trên, khi bạn gửi ETH, tạo hợp đồng thông minh, biên dịch lệnh… hay tất cả điều gì mà tương tác với blockchain Ethereum, bạn đều phải trả phí.

Gas limit Ethereum là gì?

Gas limit Ethereum được gọi là giới hạn năng lượng vì đó là số Ether tối thiểu mà bạn sẵn sàng chi trả cho phí giao dịch. Điều này tránh được tình huống có một lỗi ở nơi nào đó trong hợp đồng, và bạn gửi 1 ETH mà không có nơi nhận. Nếu bạn không đủ gas limit Ethereum thì khi gửi giao dịch sẽ gặp lỗi “Out of Gas” và giao dịch không được thực hiện.

4. Token Ethereum là gì?

Token Ethereum được phát hành trên nền tảng của cryptocurrency này để phục vụ cho một mục đích cụ thể. Như dùng để sử dụng trong các ứng dụng phân quyền (dApp) cũng được xây dựng trên Ethereum.
Ethereum có những chuẩn riêng dành cho các token khác nhau. ERC-20 hiện nay là chuẩn token Ethereum khá phổ biến trong cộng đồng. Ngoài ra còn có chuẩn ERC-223,…

Token Ethereum là gì?
Hiện nay, có rất nhiều token Ethereum trên thị trường. Một trong số đó là EOS và Tron (TRX) – khởi đầu cũng là token ERC-20 trước khi đội ngũ phát triển hoàn toàn xây dựng được blockchain riêng để tách khỏi Ethereum và hoạt động độc lập.

5. Ethereum Wallet và Ethereum Address

Ethereum Wallet (hay ví Ethereum), tương tự như Bitcoin Wallet, nói nôm na là chiếc ví tiền để bạn giữ ETH của mình. Hiện nay trên thị trường có nhiều loại ví Ethereum nhưng tiendientu.org khuyên bạn nên sử dụng những loại ví được đánh giá là an toàn nhất, để bảo vệ tài sản của mình.

Ethereum Wallet và Ethereum Address.
Một số ví Ethereum phổ biến có thể kể đến như:
  • Ví lạnh Ledger Nano S
  • Ví lạnh Trezor
  • MyEtherWallet (Ví tiền điện tử trên nền web)
  • Ngoài ra còn có: MetaMask, Exodus, ví sàn giao dịch như Coinbase, Binance,…
Ethereum Address cũng là khái niệm tương tự với Bitcoin Address, là dãy chữ số để người khác có thể chuyển ETH vào ví cho bạn. Khi cần chuyển ETH đi, bạn cần biết địa chỉ ví Ethereum của người đó.

6. Smart contract Ethereum là gì?

Trong khi một hợp đồng bình thường bao gồm các điều khoản ràng buộc mối quan hệ của hai bên đối tác thì smart contract (hợp đồng thông minh) ràng buộc mối quan hệ đó bằng mã code.

Smart contract Ethereum là gì?
Đặc biệt hơn, các hợp đồng thông minh này sẽ thực thi những điều khoản đó một cách chính xác kể từ khi nó được lập trình bởi người sáng lập.
Trong một ví dụ đơn giản khác, người sử dụng Ethereum có thể gửi 10 ETH cho bạn của mình vào một ngày nào đó bằng hợp đồng thông minh. Trong trường hợp này, người dùng sẽ tạo một hợp đồng và để dữ liệu vào hợp đồng đó. Sau đó, hợp đồng này sẽ tự động thực thi theo lệnh đã được lập trình ban đầu.

7. Smart Contract Ethereum hoạt động như thế nào?

Cần lưu ý rằng Bitcoin là ứng dụng đầu tiên dùng các hợp đồng thông minh cơ bản, có nghĩa là network có thể chuyển giá trị từ người này sang người khác. Các node của hệ thống chỉ được xác nhận các giao dịch là hợp lệ nếu nó thõa một số điều kiện nhất định. Tuy nhiên, Bitcoin bị giới hạn trong trường hợp sử dụng tiền tệ.
Trong khi đó, Ethereum thay thế ngôn ngữ lập trình hạn chế (một trong có hàng trăm ngôn ngữ lập trình) của Bitcoin bằng một ngôn ngữ lập trình cho phép các nhà phát triển phần mềm có thể viết được các chương trình của riêng mình.

Smart Contract hoạt động như thế nào?

Ethereum cho phép các nhà phát triển phần mềm lập trình các hợp đồng thông minh hay các “đại lý tự trị” (autonomous agent) được nhắc đến trong White Paper của Ethereum.
Hợp đồng thông minh có thể:
  • Có chức năng như các tài khoản “nhiều chữ ký”, các quỹ chỉ được chi tiêu khi đáp ứng đủ tỷ lệ người đồng ý.
  • Quản lý thỏa thuận giữa những người sử dụng, ví dụ, nếu một người mua bảo hiểm từ người khác.
  • Cung cấp tiện tích cho các hợp đồng khác (tương tự như cách các phần mềm hoạt động của thư viện).
  • Lưu trữ thông tin về một ứng dụng, chẳng hạn như thông tin đăng ký tên miền hay dữ liệu thành viên.

8. Tóm tắt

Ethereum là gì? Ethereum là đồng cryptocurrency (không nên gọi là tiền ảo Ethereum) được tạo ra bởi Vitalik Buterin nhằm mục đích giải quyết những yếu điểm của Bitcoin. Ethereum còn là một nền tảng để xây dựng nên các token Ethereum phục vụ vì mục đích khác nhau, cũng như xây dựng nên các ứng dụng phân quyền – tạo ra hệ sinh thái hoàn chỉnh.

Ethereum là gì? Những khái niệm xung quanh Ethereum (ETH) mà bạn nên biết?
Ether là gì? Ether được xem như “nhiên liệu”, là “gas” cho các ứng dụng phân quyền trên network Ethereum.
Ethereum Address cũng là khái niệm tương tự với Bitcoin Address, là dãy chữ số để người khác có thể chuyển ETH vào ví cho bạn. Khi cần chuyển ETH đi, bạn cần biết địa chỉ ví Ethereum (Ethereum Wallet) của người đó.
Trong khi một hợp đồng bình thường bao gồm các điều khoản ràng buộc mối quan hệ của hai bên đối tác thì smart contract Ethereum (hợp đồng thông minh) ràng buộc mối quan hệ đó bằng mã code.
Cập nhật tin tức mới nhất về blockchain và cryptocurrency tại Tiendientu.org


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How to Mine Zcoin - XZC Mining Pool Setup BINANCE POOL WHAT IS AND COULD BE - PERSONAL REVIEW The Truth Revealed, Binance Mining Pool, Digitization Benefits & Bitcoin Trade Volume New High Binance Launches Crypto Mining Pool Amid Centralization Concerns Bitcoin Halving Bull Run? Binance Launches Bitcoin Mining Pool - BitPay BUSD - Kim Jong Un BTC Stash BINANCE BITCOIN MINING POOL Coming Soon! XRP Not A ... How to Mine Ethereum - ETH Mining Pool Setup - YouTube #BİNANCE STAKİNG YAPARAK PARA KAZANMAK. #bitcoin kripto Para borsasında müthiş avantajlar. #link Bitcoin mining of the binance pool #Binancepool #binance ... Passive Bitcoin & Crypto Income Via Liquidity Pools ...

Mining Bitcoin with the Best Pools. If you are someone who’s interested in mining Bitcoin, you are going to want to learn about mining pools. When you mine as part of a pool, you are essentially lending some of your resources to a bigger group of miners, and everyone is profiting more, together. You might have a lot of questions about mining pools if you’re new to mining, but not to worry ... Bitcoin Mining Pools Explained and Reviewed. By: Ofir Beigel Last updated: 5/2/20 In this article, we’ll examine the top five Bitcoin mining pools. It’s worth noting that this article is about mining with your own Bitcoin mining hardware and not cloud mining.. Best Bitcoin Mining Pools Summary Mining technology could exponentially increase at any time, resulting in a massive shift in both difficulty and hash rate which are not accounted for in this calculation. This calculation assumes a steady linear rate of growth. Conclusion. With Bitcoin’s massive growth in 2014 compared to 2013, we can expect great things in 2015. While I do ... The first offline Bitcoin wallet and the first Bitcoin-centric world map was created by Satoshi Labs in addition to the mining stratum protocol which is being used by the other mining pools. Slush Pool stands unique for using Score based method, where the old shares are given lesser prominence than news shares at the start of the round. This method avoids the risk of getting cheated by other ... It would take nearly two more years for bitcoin mining pools to emerge. The first of these, which became known as Slush’s pool, began generating blocks (according to it’s own stats), with block 97384 on December 10th 2010. 2014 was a year of upheaval in bitcoin. Mt. Gox, one of the exchanges that helped drive the price up to dizzing heights closed unexpectedly in February, and a series of hacks and thefts rocked exchanges, wallets and businesses across the blockchain. Prices rebounded a little at the start of the year to $940, before steadily dropping, with a sharp decline when Mt. Gox closed, and a continued ... Mining pools grow and shrink, and rise and fall altogether. Today there are more extinct mining pools than there are active ones. The hashpower of the April 27, 2020 – Binance, the blockchain company behind the world’s largest cryptocurrency exchange by trading volume and users, today announced the launch of Binance Pool, a comprehensive mining platform dedicated to the development of the global crypto mining industry and empowering miners. Binance Unveils Crypto Mining Pool. The company hopes to empower miners and the mining industry by ... Due to continuously rising prices of Bitcoin (BTC), cryptocurrency mining has become a billion-dollar revenue industry and has grown increasingly specialized, evident in the rising dominance of ASICs.; Since August 2017, Bitcoin has experienced several hard forks, resulting in not only new blockchains, but also in new assets. On July 5th 2019, Binance listed Dogecoin 9, thus providing a more liquid market for miners to sell their coins to cover their fiat operating costs. However, it remains to be seen whether this recent listing could incentivize more Litecoin mining pools to also hard-fork their pooled mining protocols into a merged mining one that includes Dogecoin. With this new listing, Dogecoin market depth ...

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How to Mine Zcoin - XZC Mining Pool Setup

In this video we show how to mine Zcoin (XZC) from scratch. Zcoin Mining Pool: https://2miners.com/xzc-mining-pool Binance crypto exchange is used. How to Re... 🔥 Get the Ledger Nano X to Safely store your Crypto - https://www.ledgerwallet.com/r/acd6 🔥 Become a Channel Member - https://www.youtube.com/channel/UCjpkws... The Truth Revealed, Binance Mining Pool, Digitization Benefits & Bitcoin Trade Volume New High The Modern Investor. Loading... Unsubscribe from The Modern Investor? Cancel Unsubscribe. Working ... Cardano Shelley Genesis Block arrives! Binance starts Mining Pool. 68k Bitcoin on the move - Duration: 8:07. Crypto Daily Update 663 views. 8:07. BITCOIN ON BILLIONS - Ripple XRP New Job Role ... This is an educational video on bitcoin mining of binance pool and not a financial advice. #Binance #BinancePool #Binance pool If you want to sign up to Bina... JP from Thorchain https://thorchain.org/ and I discuss how you can make passive income by providing liquidity, multichain swaps, and Thorchain's Binance DEX ... Share your videos with friends, family, and the world As a company I love BINANCE, how they have been performing no matter what type of market they are in, bull market, bear market, sideways, you name it and their token BNB and Exchanges has been ... 11/08/2020 Binance borsasının sunduğu avantajları doğru kullandığınız da çok güzel kazanlar elde edebilirsiniz. Bitcoin son dönemde artmaya devam ediyor Link... Binance Pool has received mixed responses from the crypto community, with some commentators expressing concerns that Binance's pool will result in a further centralization of Bitcoin ( BTC ) hash ...

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