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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 summaryDragonchain 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 PoCIn 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.
A live proof of concept showing hundreds of thousands of transactionsOn 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:
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.
How it works & scales
Architectural ScalingDragonchain’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 ScalingAn 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 DeploymentDragonchain 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 ScalingDragonchain’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.
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
How to run itBuilding 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...
ArchitectureDragonchain 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.
APIs (on chain & off)
Known issues or tradeoffs
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.
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.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
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 considerDragonchain’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.
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 transactionsDragonchain 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.
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.
Users should be able to view their balances & transactions via a blockchain explorer-style interfaceFrom 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 & simpleWithdrawing 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
Documentation should be clear and completeFor 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 Points: Show us how it works. Do you have an idea for a cool new use case for Community Points? Build it!
TIMECommunity 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 DenDragonchain 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 elseUsers 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 elseThrough 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 offlineIf 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 availableTo 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 pointsSee above
Compatibility with HSMs & hardware walletsFor 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.
Minting/distributing tokens is not performed by Reddit directlyThis 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 scalableThis is possible and scalable with interaction between Dragonchain Reddit system and Ethereum token contract(s).
Fully open-source solutions are strongly preferredDragonchain is fully open source (see section on Disney release after conclusion).
ConclusionWhether 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 SourceThe 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.
Open SourceIn 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:
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 FoundationThe Dragonchain Foundation was created on January 17, 2017. https://den.social/l/Dragonchain/24130078352e485d96d2125082151cf0/dragonchain-and-disney/
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1. What is Bitcoin (BTC)?
2. Bitcoin’s core featuresFor a more beginner’s introduction to Bitcoin, please visit Binance Academy’s guide to Bitcoin.
Unspent Transaction Output (UTXO) modelA UTXO transaction works like cash payment between two parties: Alice gives money to Bob and receives change (i.e., unspent amount). In comparison, blockchains like Ethereum rely on the account model.
Nakamoto consensusIn the Bitcoin network, anyone can join the network and become a bookkeeping service provider i.e., a validator. All validators are allowed in the race to become the block producer for the next block, yet only the first to complete a computationally heavy task will win. This feature is called Proof of Work (PoW).
The probability of any single validator to finish the task first is equal to the percentage of the total network computation power, or hash power, the validator has. For instance, a validator with 5% of the total network computation power will have a 5% chance of completing the task first, and therefore becoming the next block producer.
Since anyone can join the race, competition is prone to increase. In the early days, Bitcoin mining was mostly done by personal computer CPUs.
As of today, Bitcoin validators, or miners, have opted for dedicated and more powerful devices such as machines based on Application-Specific Integrated Circuit (“ASIC”).
Proof of Work secures the network as block producers must have spent resources external to the network (i.e., money to pay electricity), and can provide proof to other participants that they did so.
With various miners competing for block rewards, it becomes difficult for one single malicious party to gain network majority (defined as more than 51% of the network’s hash power in the Nakamoto consensus mechanism). The ability to rearrange transactions via 51% attacks indicates another feature of the Nakamoto consensus: the finality of transactions is only probabilistic.
Once a block is produced, it is then propagated by the block producer to all other validators to check on the validity of all transactions in that block. The block producer will receive rewards in the network’s native currency (i.e., bitcoin) as all validators approve the block and update their ledgers.
Block productionThe Bitcoin protocol utilizes the Merkle tree data structure in order to organize hashes of numerous individual transactions into each block. This concept is named after Ralph Merkle, who patented it in 1979.
With the use of a Merkle tree, though each block might contain thousands of transactions, it will have the ability to combine all of their hashes and condense them into one, allowing efficient and secure verification of this group of transactions. This single hash called is a Merkle root, which is stored in the Block Header of a block. The Block Header also stores other meta information of a block, such as a hash of the previous Block Header, which enables blocks to be associated in a chain-like structure (hence the name “blockchain”).
An illustration of block production in the Bitcoin Protocol is demonstrated below.
Block time and mining difficultyBlock time is the period required to create the next block in a network. As mentioned above, the node who solves the computationally intensive task will be allowed to produce the next block. Therefore, block time is directly correlated to the amount of time it takes for a node to find a solution to the task. The Bitcoin protocol sets a target block time of 10 minutes, and attempts to achieve this by introducing a variable named mining difficulty.
Mining difficulty refers to how difficult it is for the node to solve the computationally intensive task. If the network sets a high difficulty for the task, while miners have low computational power, which is often referred to as “hashrate”, it would statistically take longer for the nodes to get an answer for the task. If the difficulty is low, but miners have rather strong computational power, statistically, some nodes will be able to solve the task quickly.
Therefore, the 10 minute target block time is achieved by constantly and automatically adjusting the mining difficulty according to how much computational power there is amongst the nodes. The average block time of the network is evaluated after a certain number of blocks, and if it is greater than the expected block time, the difficulty level will decrease; if it is less than the expected block time, the difficulty level will increase.
What are orphan blocks?In a PoW blockchain network, if the block time is too low, it would increase the likelihood of nodes producingorphan blocks, for which they would receive no reward. Orphan blocks are produced by nodes who solved the task but did not broadcast their results to the whole network the quickest due to network latency.
It takes time for a message to travel through a network, and it is entirely possible for 2 nodes to complete the task and start to broadcast their results to the network at roughly the same time, while one’s messages are received by all other nodes earlier as the node has low latency.
Imagine there is a network latency of 1 minute and a target block time of 2 minutes. A node could solve the task in around 1 minute but his message would take 1 minute to reach the rest of the nodes that are still working on the solution. While his message travels through the network, all the work done by all other nodes during that 1 minute, even if these nodes also complete the task, would go to waste. In this case, 50% of the computational power contributed to the network is wasted.
The percentage of wasted computational power would proportionally decrease if the mining difficulty were higher, as it would statistically take longer for miners to complete the task. In other words, if the mining difficulty, and therefore targeted block time is low, miners with powerful and often centralized mining facilities would get a higher chance of becoming the block producer, while the participation of weaker miners would become in vain. This introduces possible centralization and weakens the overall security of the network.
However, given a limited amount of transactions that can be stored in a block, making the block time too longwould decrease the number of transactions the network can process per second, negatively affecting network scalability.
3. Bitcoin’s additional features
Segregated Witness (SegWit)Segregated Witness, often abbreviated as SegWit, is a protocol upgrade proposal that went live in August 2017.
SegWit separates witness signatures from transaction-related data. Witness signatures in legacy Bitcoin blocks often take more than 50% of the block size. By removing witness signatures from the transaction block, this protocol upgrade effectively increases the number of transactions that can be stored in a single block, enabling the network to handle more transactions per second. As a result, SegWit increases the scalability of Nakamoto consensus-based blockchain networks like Bitcoin and Litecoin.
SegWit also makes transactions cheaper. Since transaction fees are derived from how much data is being processed by the block producer, the more transactions that can be stored in a 1MB block, the cheaper individual transactions become.
The legacy Bitcoin block has a block size limit of 1 megabyte, and any change on the block size would require a network hard-fork. On August 1st 2017, the first hard-fork occurred, leading to the creation of Bitcoin Cash (“BCH”), which introduced an 8 megabyte block size limit.
Conversely, Segregated Witness was a soft-fork: it never changed the transaction block size limit of the network. Instead, it added an extended block with an upper limit of 3 megabytes, which contains solely witness signatures, to the 1 megabyte block that contains only transaction data. This new block type can be processed even by nodes that have not completed the SegWit protocol upgrade.
Furthermore, the separation of witness signatures from transaction data solves the malleability issue with the original Bitcoin protocol. Without Segregated Witness, these signatures could be altered before the block is validated by miners. Indeed, alterations can be done in such a way that if the system does a mathematical check, the signature would still be valid. However, since the values in the signature are changed, the two signatures would create vastly different hash values.
For instance, if a witness signature states “6,” it has a mathematical value of 6, and would create a hash value of 12345. However, if the witness signature were changed to “06”, it would maintain a mathematical value of 6 while creating a (faulty) hash value of 67890.
Since the mathematical values are the same, the altered signature remains a valid signature. This would create a bookkeeping issue, as transactions in Nakamoto consensus-based blockchain networks are documented with these hash values, or transaction IDs. Effectively, one can alter a transaction ID to a new one, and the new ID can still be valid.
This can create many issues, as illustrated in the below example:
Since the transaction malleability issue is fixed, Segregated Witness also enables the proper functioning of second-layer scalability solutions on the Bitcoin protocol, such as the Lightning Network.
Lightning NetworkLightning Network is a second-layer micropayment solution for scalability.
Specifically, Lightning Network aims to enable near-instant and low-cost payments between merchants and customers that wish to use bitcoins.
Lightning Network was conceptualized in a whitepaper by Joseph Poon and Thaddeus Dryja in 2015. Since then, it has been implemented by multiple companies. The most prominent of them include Blockstream, Lightning Labs, and ACINQ.
A list of curated resources relevant to Lightning Network can be found here.
In the Lightning Network, if a customer wishes to transact with a merchant, both of them need to open a payment channel, which operates off the Bitcoin blockchain (i.e., off-chain vs. on-chain). None of the transaction details from this payment channel are recorded on the blockchain, and only when the channel is closed will the end result of both party’s wallet balances be updated to the blockchain. The blockchain only serves as a settlement layer for Lightning transactions.
Since all transactions done via the payment channel are conducted independently of the Nakamoto consensus, both parties involved in transactions do not need to wait for network confirmation on transactions. Instead, transacting parties would pay transaction fees to Bitcoin miners only when they decide to close the channel.
One limitation to the Lightning Network is that it requires a person to be online to receive transactions attributing towards him. Another limitation in user experience could be that one needs to lock up some funds every time he wishes to open a payment channel, and is only able to use that fund within the channel.
However, this does not mean he needs to create new channels every time he wishes to transact with a different person on the Lightning Network. If Alice wants to send money to Carol, but they do not have a payment channel open, they can ask Bob, who has payment channels open to both Alice and Carol, to help make that transaction. Alice will be able to send funds to Bob, and Bob to Carol. Hence, the number of “payment hubs” (i.e., Bob in the previous example) correlates with both the convenience and the usability of the Lightning Network for real-world applications.
Schnorr Signature upgrade proposalElliptic Curve Digital Signature Algorithm (“ECDSA”) signatures are used to sign transactions on the Bitcoin blockchain.
However, many developers now advocate for replacing ECDSA with Schnorr Signature. Once Schnorr Signatures are implemented, multiple parties can collaborate in producing a signature that is valid for the sum of their public keys.
This would primarily be beneficial for network scalability. When multiple addresses were to conduct transactions to a single address, each transaction would require their own signature. With Schnorr Signature, all these signatures would be combined into one. As a result, the network would be able to store more transactions in a single block.
The reduced size in signatures implies a reduced cost on transaction fees. The group of senders can split the transaction fees for that one group signature, instead of paying for one personal signature individually.
Schnorr Signature also improves network privacy and token fungibility. A third-party observer will not be able to detect if a user is sending a multi-signature transaction, since the signature will be in the same format as a single-signature transaction.
4. Economics and supply distributionThe Bitcoin protocol utilizes the Nakamoto consensus, and nodes validate blocks via Proof-of-Work mining. The bitcoin token was not pre-mined, and has a maximum supply of 21 million. The initial reward for a block was 50 BTC per block. Block mining rewards halve every 210,000 blocks. Since the average time for block production on the blockchain is 10 minutes, it implies that the block reward halving events will approximately take place every 4 years.
As of May 12th 2020, the block mining rewards are 6.25 BTC per block. Transaction fees also represent a minor revenue stream for miners.
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Hello everyone, thank you for your continued interest and support. In the past two weeks, various tasks of TokenClub have been progressing steadily. The product development and community operation progress this week are as follows:
1. TokenClub Events
1)Binance blockchain live streaming program “Block 101” joins TokenClub APP
TokenClub teamed up with Binance “Block 101” to host a series of live broadcast events. In the past two weeks, the big brothers such as the CEO of Feixin, Cobo co-founder Shenyu, and IOST co-founder Terry visited the TokenClub live broadcast room. See live summary. “Block 101” is a live broadcast of dialogues launched by Binance New Media Marketing Team, hosted by Jiayi, Anna, Liuliu, Yingge, Sisi, Qiqi, Doris, etc. Here will invite entrepreneurs in the industry, investment giants, opinion leaders, trading bulls or ordinary people with stories. Every Monday to Friday, with you in the TokenClub live room.
2)Participate in poster forwarding, draw red envelope prize
When Bitcoin halves, TokenClub launches a poster forwarding red envelope campaign. On the day of the event, forward the poster to Twitter and the telegram group, and upload a screenshot to have the opportunity to extract the TCT red envelope award ~
3)Participate in live streaming interactive questions and win mysterious gift events
From May 11th to May 15th, TokenClub launched a live question and prize draw event. During the event, watch the block 101 live broadcast and interact with questions during the live broadcast, you will have the opportunity to get a mysterious gift from TokenClub.
3)TokenClub’s self-media Bilaoye was invited to participate in AMA
a. On May 7th,Bilaoye was invited by UPChain to conduct an AMA with the theme of “Half Countdown, Where Will the Market Go” in the Chains community. AMA article link:
b. On May 8th, Bilaoye was invited by Golden Finance to conduct an AMA with the theme “Bitcoin Breaks Over US $ 10,000 and Will Do This in Half”. Review link:
C. On May 14, Bilaoye was invited by Cailu Finance to conduct an AMA with the theme of “Correct Postures for Depositing Money” in the Cailu community.Review link:
Recently, Feng Yuqing, the director of Yicai Global America, the first Chinese reporter to interview Buffett, the organizer & host of the First Financial New York Forum; a world-renowned financial expert, a professor of finance at the Cheung Kong Graduate School of Business, and the director of the finance department -Cao Huining; ARPA founder Felix, SWFT Blockchain one-stop currency exchange cross-chain platform operation in Greater China & BD leader-Ye Fei, mining big man Binxin Mining CEO “Feige”, contract emperor co-founder Xiaoding, AlchemyPay co-founder Shi Xiang, financial expert & first-line trader Xu Zhe, Huobi Key Account Manager-Xiaotong, Roark Group & Bitribe & 499 Block founder sky, Cobo co-founder Shenyu, DappReview CEO Niu Fengxuan, IOST co-founder Terry; and TokenClub blockchain and cryptocurrency investment strategy senior expert-Zao Shen talks with you about the blockchain ~
On May 6, Block 101 Sisi Dialogue Felix, the founder of the hard-core technical team on the blockchain, ARPA Felix, the theme is “The Wall Street Battle of the Wall Street Elite”. In this live dialogue, the resume is dazzling. , The young man who was free to switch between “Yangchun Baixue” and “earthed gas” from the team’s initial heart chat to his investment strategy to the judgment of the entire currency market, his fanaticism of rock seems to explain a series of “adventure” options- — Longing for a more free and innovative world.
On May 6th, TokenClub invited the one-stop SWFT Blockchain currency exchange cross-chain platform Greater China operation & BD leader-Ye Fei as a guest to “Jingjing at 8 o’clock” live broadcast, bringing us “flash exchange in the future block The theme of “Chain Payment Ecosystem” is shared. Mr. Ye made a detailed interpretation of SWFTC, and revealed the development plan of SWFTC, and exchanged questions and answers with fans enthusiastically.
On May 7th, Block 101 Luna talked to the CEO of the mining industry, who is most familiar with KTV, Kexin Mining, “Fei Ge”. Liu Fei talked to Bin An Luna, he counted his mining “stepping on the pit road” “, Talking about halving the market and investment experience, talking to the second half, wearing a red Polo shirt, he began to persuade everyone to learn more in the KTV in Beijing at night, and recommended books.
On May 8, the TokenClub live column-”Professor had an appointment” shared the theme: “BOC crude oil treasure and financial derivatives market”. In this issue, Professor Cao invited the first U.S. Global Director of the United States, the first Chinese reporter to interview Buffett, the organizer & host of the First Financial New York Forum, and Columbia University Master of International Relations Feng Yuqing to share with guests on Chain, digital currency financial derivatives market, etc. have done a detailed exchange analysis.
On May 8th, block 101 was led by Binance BD’s head Li Jiayi, who talked about contract emperor co-founder Xiao Dingdang. He is an old code farmer who is known for his futures contract operations. He wrote a 10-year code, and the front end Everyone is familiar with it, and it is hard to say anything on the line of speech. Frankly, he talked from his fortune history to the story of the endless number of contract circles, and shared his trading iron law with everyone: there must be a stop loss; must practice more and try more.
On May 9th, Zaoshen is coming ~ The sharing theme of this issue is: The Yangtze River will push back and forth, and one wave will be more than one wave. Speaking of the “Houlang” hot event, Zao Shen mainly analyzed the halving market with everyone in detail, to see how many opportunities there are and what strategies to choose. Soul asked: How much money did you make in this wave of quotes?
On May 11, Block 101 was discussed by Binance Qiqi Dialogue AlchemyPay co-founder Shi Xiang, the former vice president of Zhongan Technology and the founder of Micro Index shared with you the experience of dealing with overseas regulators: supervision is not actually strong Groups, regulation will strike you because you are worried about doing bad things, but as long as you are willing to actively communicate, regulation usually gives a tolerance period. For more content, please move to the live room.
May 12, Exclusive: Huobi Global & Knowing Daniel Interpretation of “Physical Currency, Debt Currency to Encrypted Digital Currency”. The key account manager of Huobi Global has a conversation with financial expert and front-line trader Xu Zhe, talking about physical currency, debt currency and encrypted digital currency. Work is tired enough, the market is already exciting enough, pick Xu Da Tucao various currencies, teach you to return all the money. The value of the young lady’s face is a feeling of emotion.
On May 12, Block 101 was founded by Binance Thinking, the founder of Roark Group, Bitribe, and 499Block. Sky, a science and technology man from Tsinghua University and MIT, has the title of “Coin Circle Zheng Kai”. Sky said that starting a business in the blockchain industry is like drifting in the turbulent Amazon River. If you do n’t believe that you will eventually reach the sea, you will be thrown off. Sky believes that Bitcoin is essentially a consensus based on time. Halving is like escaping the monsters, and each level increases the consensus.
On May 13th, Block 101 Luna talked to F2Pool and Cobo co-founder Shenyu, and talked about the “new” story of Bitcoin. Leo ’s Godfish talked to us about the monopoly of computing power, mining pool operations, halving and Cobo ’s future development goals. He said that 80–90% of personal assets are Bitcoin, and about 10% of Ethereum and other Strange coins from mining. It is called “the first segment of the coin circle” because “more pits are filled, so in the end each pit becomes a stalk.”
On May 14, Niu Fengxuan, CEO of DappReview, talked about “how ordinary people make money through Dapp”. Niu Fengxuan graduated from Fudan and Stanford. He is a serious game enthusiast. He has written many in-depth game evaluations and is an early participant of Dapp. He said that many people think that the biggest application of blockchain is speculation, but the technology ultimately serves products and applications. In the long run, if blockchain can really bring changes and innovations to the world technically, then it must be C-side users should feel it in a more friendly way in other fields.
On May 15th, Block 101 Yingge talked to IOST co-founder Terry and talked about “The Blockchain Ideal of Princeton Schoolmaster”. Terry told us about his sad history, happy history, and experience and experience of mining from college mining to graduate school to entrepreneurship, talked about the development direction of the blockchain market, and interacted with fans.
On May 16th, senior expert Zao Shen brought a live broadcast on the theme of “Depth Is Insufficient In Operation, How To Play With Crash”. In this live broadcast, in addition to analyzing the macro level of the economy, Zao Shen also focused on sharing The specific operation skills emphasized the principle of buying and selling, and finally commented on the hot events such as the recent Federal Reserve announcement that it will not fall to negative interest rates.
3.TokenClub operation data
-Live data: 13 live broadcasts in the past two weeks, with over 600,000 views. TokenClub hosted a total of 835 live broadcasts with a total of 44.25 million views.
-Binary trade data: In the past two weeks, guess the rise and fall to participate in a total of 1060 times, the amount of participation exceeded 2 million TCT. At present, it is guessed that the rise and fall function has participated in a total of 1.11 million times, with a cumulative participation amount of 496 million TCT.
-Chat data: In the past two weeks, a total of 28,950 messages have been generated. A total of 4.83 milliom messages have been launched since the function was launched.
-Mini-game data: The mini-game has participated in a total of 7,830 times in the past two weeks. A total of 1,66 million self-functions have been online.
-Cut leeks game data together: Since the game was launched, the total number of user participation in the game was 954,364 TCT total consumption was 6,27 million gift certificate total consumption was 15,53 million and TCT mining output was 160,48.
-TokenClub KOL data: Over the past two weeks, the total reading volume of the BTCGrandpa article has been viewed by more than 300,000 people.
-Social media data: At present, the number of Weibo official accounts is 17,972 and the number of Twitter followers is 1310, and we have opened the official Medium account this week, welcome to follow.
-Telegram official group data: In the past 2 weeks, there were 310 chats in the group, and the total number of Telegram official groups is currently 2971.
-Medium data: Medium official account u/TokenClub has published 1 excellent articles, official announcements and updates are published in English, welcome to follow.
TokenClub held an event for forwarding Twitter and telegram group chats for overseas users. Bitcoin halved in less than two weeks, overseas users are more active in the telegram group, and some friends are more concerned about Binance Block 101 live broadcast, aggregation exchange, TCT usage and other issues, the administrator responded in time.On May 12th, when Bitcoin was halved, TokenClub organized a forwarding Twitter, telegram group chat prize event and participating in a live question asking interactive prize event for overseas users. There are many live broadcast events in the near future. The live broadcast poster information will be released to overseas users as soon as possible. The follow-up TokenClub will translate and broadcast high-quality live broadcast content to Twitter and Medium. Bitcoin halved, overseas users are more active in the telegram group, and some partners are more concerned about block 101 live broadcast, bitcoin future price trend, TCT usage and other issues, the administrator responded in time in the group.
Last Friday, a holiday, the community opened the red envelope rain event, and brought a sincere gift to everyone while relaxing in the holiday. At the same time, it also sent the most sincere blessings to all mothers in the community on Mother’s Day. Thank you for your long-term support and help to the Orange Club community.
The third week of the second 100-day fixed investment plan held this week has been awarded. The participation of this event is still quite positive. This week, the bitcoin halving market was also opened in advance. If it starts according to the first day The small partners participating in the fixed investment should now have a certain floating win, so we adopt the correct cycle investment strategy to believe that it can bring unexpected benefits to everyone.
On May 9th and May 16th, TCT Fortune Free Academy carried out red envelope party activities as scheduled. In the event, in addition to GF red envelopes, students were reminded that there may be a callback risk after the pie halving, and short-term profits are available.
On the evening of May 3rd and May 10th, TCT Fortune Free Academy carried out the 51st and 52nd week sign-in sweepstakes, and rewarded the small TCT partners who had always insisted on signing in. In these two sign-in sweepstakes, the lucky friends received 20–180TCT as a reward. In addition, during the lucky draw, the college friends also actively expressed their opinions on the topic of this year’s bull market.
The Leek Paradise Community Conference will continue as usual every Sunday at 20:00. During the conference, members will discuss recent hot topics, including gifts and blessings for Mother ’s Day, and the halving of Bitcoin everyone is paying attention to. At the end, the friends in the group also showed a rare enthusiasm at the first sight. It seems that the market still affects the mood. The members routinely started a red envelope rain to cheer for the participating partners and encourage everyone to maintain patience and confidence. Of course, at the same time, we are encouraging ourselves to see the community meeting next week. Come on!
TokenClub volunteer community, sign in red envelopes every day, as long as you sign in every day, you can get good benefits, friends join us quickly! In the past two weeks, the community has conducted active partners.
TCT has been listed on Binance、Okex、Gate.io、ZB-M、MXC、Biki、Coinex、BigOne、Coinbene、Cybex、SWFT、Loopring、Rootrex etc.
TokenClub website: www.tokenclub.com
TokenClub App download QR code
Nach Binance-Hack, beantwortete CEO Changpeng Zhao (CZ) in einem Ask Me Anything (AMA) die wichtigsten Fragen. Video: Wie der Coin Kurier heute Vormittag berichtete, ist die in Malta sitzende Krypto-Börse Binance einem “großflächigen” Hack zum Opfer gefallen.Anfangs hieß es, es sollen 7.000 BTC gestohlen worden sein, was einem Gegenwert von mehr als 36 Millionen Euro entspricht. Watching the bitcoin price move can be exhilarating, or at times soul-crushing, depending on the market. The unpredictability makes watching things unfold Released in 2014, The Rise and Rise of Bitcoin offers an optimistic look at the early days of Bitcoin, when the digital token and “currency of the internet” was still a novelty. The documentary follows Daniel, a computer programmer who bet big on Bitcoin in its infancy, knowing that the technology would be world-changing. Though the days of basement mining rigs are mostly over, bitcoin mining live stream - If you’ve had a conversation about bitcoin or read an article or two on the topic, the term ‘bitcoin mining’ has probably come up. This is the process by which bitcoin transactions are verified and blocks are added to the bitcoin ledger. One of the most intriguing things about bitcoin mining is that it involves the release of new bitcoins in the form of a ... The CEO of the crypto exchange has shared a picture on Twitter showing the first Livestream of Binance Mining Pool. As Mr. Zhao said, Chinese speaking circles are already talking about this and are waiting for an official launch of this feature. Binance is one of the largest exchanges in the market and the company is doing everything as possible to reach a larger number of users and ... Binance mining pool. Het bedrijf met Changpeng Zhao is één van de grootste Bitcoin beurzen ter wereld. Het handelspaar BTC-USDT op deze beurs draait – samen met OKEx – namelijk het grootste handelsvolume in de markt (bron: Coingecko). En BitRiver is uitbater van de grootste datacenter in Bratsk, Rusland.
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