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A frequent question I see being asked is how Cosmos, Polkadot and Avalanche compare? Whilst there are similarities there are also a lot of differences. This article is not intended to be an extensive in-depth list, but rather an overview based on some of the criteria that I feel are most important.
For better formatting see https://medium.com/ava-hub/comparison-between-avalanche-cosmos-and-polkadot-a2a98f46c03b
CosmosCosmos is a heterogeneous network of many independent parallel blockchains, each powered by classical BFT consensus algorithms like Tendermint. Developers can easily build custom application specific blockchains, called Zones, through the Cosmos SDK framework. These Zones connect to Hubs, which are specifically designed to connect zones together.
The vision of Cosmos is to have thousands of Zones and Hubs that are Interoperable through the Inter-Blockchain Communication Protocol (IBC). Cosmos can also connect to other systems through peg zones, which are specifically designed zones that each are custom made to interact with another ecosystem such as Ethereum and Bitcoin. Cosmos does not use Sharding with each Zone and Hub being sovereign with their own validator set.
For a more in-depth look at Cosmos and provide more reference to points made in this article, please see my three part series — Part One, Part Two, Part Three
(There's a youtube video with a quick video overview of Cosmos on the medium article - https://medium.com/ava-hub/comparison-between-avalanche-cosmos-and-polkadot-a2a98f46c03b)
PolkadotPolkadot is a heterogeneous blockchain protocol that connects multiple specialised blockchains into one unified network. It achieves scalability through a sharding infrastructure with multiple blockchains running in parallel, called parachains, that connect to a central chain called the Relay Chain. Developers can easily build custom application specific parachains through the Substrate development framework.
The relay chain validates the state transition of connected parachains, providing shared state across the entire ecosystem. If the Relay Chain must revert for any reason, then all of the parachains would also revert. This is to ensure that the validity of the entire system can persist, and no individual part is corruptible. The shared state makes it so that the trust assumptions when using parachains are only those of the Relay Chain validator set, and no other. Interoperability is enabled between parachains through Cross-Chain Message Passing (XCMP) protocol and is also possible to connect to other systems through bridges, which are specifically designed parachains or parathreads that each are custom made to interact with another ecosystem such as Ethereum and Bitcoin. The hope is to have 100 parachains connect to the relay chain.
For a more in-depth look at Polkadot and provide more reference to points made in this article, please see my three part series — Part One, Part Two, Part Three
(There's a youtube video with a quick video overview of Polkadot on the medium article - https://medium.com/ava-hub/comparison-between-avalanche-cosmos-and-polkadot-a2a98f46c03b)
AvalancheAvalanche is a platform of platforms, ultimately consisting of thousands of subnets to form a heterogeneous interoperable network of many blockchains, that takes advantage of the revolutionary Avalanche Consensus protocols to provide a secure, globally distributed, interoperable and trustless framework offering unprecedented decentralisation whilst being able to comply with regulatory requirements.
Avalanche allows anyone to create their own tailor-made application specific blockchains, supporting multiple custom virtual machines such as EVM and WASM and written in popular languages like Go (with others coming in the future) rather than lightly used, poorly-understood languages like Solidity. This virtual machine can then be deployed on a custom blockchain network, called a subnet, which consist of a dynamic set of validators working together to achieve consensus on the state of a set of many blockchains where complex rulesets can be configured to meet regulatory compliance.
Avalanche was built with serving financial markets in mind. It has native support for easily creating and trading digital smart assets with complex custom rule sets that define how the asset is handled and traded to ensure regulatory compliance can be met. Interoperability is enabled between blockchains within a subnet as well as between subnets. Like Cosmos and Polkadot, Avalanche is also able to connect to other systems through bridges, through custom virtual machines made to interact with another ecosystem such as Ethereum and Bitcoin.
For a more in-depth look at Avalanche and provide more reference to points made in this article, please see here and here
(There's a youtube video with a quick video overview of Avalanche on the medium article - https://medium.com/ava-hub/comparison-between-avalanche-cosmos-and-polkadot-a2a98f46c03b)
Comparison between Cosmos, Polkadot and AvalancheA frequent question I see being asked is how Cosmos, Polkadot and Avalanche compare? Whilst there are similarities there are also a lot of differences. This article is not intended to be an extensive in-depth list, but rather an overview based on some of the criteria that I feel are most important. For a more in-depth view I recommend reading the articles for each of the projects linked above and coming to your own conclusions. I want to stress that it’s not a case of one platform being the killer of all other platforms, far from it. There won’t be one platform to rule them all, and too often the tribalism has plagued this space. Blockchains are going to completely revolutionise most industries and have a profound effect on the world we know today. It’s still very early in this space with most adoption limited to speculation and trading mainly due to the limitations of Blockchain and current iteration of Ethereum, which all three of these platforms hope to address. For those who just want a quick summary see the image at the bottom of the article. With that said let’s have a look
CosmosEach Zone and Hub in Cosmos is capable of up to around 1000 transactions per second with bandwidth being the bottleneck in consensus. Cosmos aims to have thousands of Zones and Hubs all connected through IBC. There is no limit on the number of Zones / Hubs that can be created
PolkadotParachains in Polkadot are also capable of up to around 1500 transactions per second. A portion of the parachain slots on the Relay Chain will be designated as part of the parathread pool, the performance of a parachain is split between many parathreads offering lower performance and compete amongst themselves in a per-block auction to have their transactions included in the next relay chain block. The number of parachains is limited by the number of validators on the relay chain, they hope to be able to achieve 100 parachains.
AvalancheAvalanche is capable of around 4500 transactions per second per subnet, this is based on modest hardware requirements to ensure maximum decentralisation of just 2 CPU cores and 4 GB of Memory and with a validator size of over 2,000 nodes. Performance is CPU-bound and if higher performance is required then more specialised subnets can be created with higher minimum requirements to be able to achieve 10,000 tps+ in a subnet. Avalanche aims to have thousands of subnets (each with multiple virtual machines / blockchains) all interoperable with each other. There is no limit on the number of Subnets that can be created.
ResultsAll three platforms offer vastly superior performance to the likes of Bitcoin and Ethereum 1.0. Avalanche with its higher transactions per second, no limit on the number of subnets / blockchains that can be created and the consensus can scale to potentially millions of validators all participating in consensus scores ✅✅✅. Polkadot claims to offer more tps than cosmos, but is limited to the number of parachains (around 100) whereas with Cosmos there is no limit on the number of hubs / zones that can be created. Cosmos is limited to a fairly small validator size of around 200 before performance degrades whereas Polkadot hopes to be able to reach 1000 validators in the relay chain (albeit only a small number of validators are assigned to each parachain). Thus Cosmos and Polkadot scores ✅✅
CosmosTendermint consensus is limited to around 200 validators before performance starts to degrade. Whilst there is the Cosmos Hub it is one of many hubs in the network and there is no central hub or limit on the number of zones / hubs that can be created.
PolkadotPolkadot has 1000 validators in the relay chain and these are split up into a small number that validate each parachain (minimum of 14). The relay chain is a central point of failure as all parachains connect to it and the number of parachains is limited depending on the number of validators (they hope to achieve 100 parachains). Due to the limited number of parachain slots available, significant sums of DOT will need to be purchased to win an auction to lease the slot for up to 24 months at a time. Thus likely to lead to only those with enough funds to secure a parachain slot. Parathreads are however an alternative for those that require less and more varied performance for those that can’t secure a parachain slot.
AvalancheAvalanche consensus scan scale to tens of thousands of validators, even potentially millions of validators all participating in consensus through repeated sub-sampling. The more validators, the faster the network becomes as the load is split between them. There are modest hardware requirements so anyone can run a node and there is no limit on the number of subnets / virtual machines that can be created.
ResultsAvalanche offers unparalleled decentralisation using its revolutionary consensus protocols that can scale to millions of validators all participating in consensus at the same time. There is no limit to the number of subnets and virtual machines that can be created, and they can be created by anyone for a small fee, it scores ✅✅✅. Cosmos is limited to 200 validators but no limit on the number of zones / hubs that can be created, which anyone can create and scores ✅✅. Polkadot hopes to accommodate 1000 validators in the relay chain (albeit these are split amongst each of the parachains). The number of parachains is limited and maybe cost prohibitive for many and the relay chain is a ultimately a single point of failure. Whilst definitely not saying it’s centralised and it is more decentralised than many others, just in comparison between the three, it scores ✅
CosmosTendermint consensus used in Cosmos reaches finality within 6 seconds. Cosmos consists of many Zones and Hubs that connect to each other. Communication between 2 zones could pass through many hubs along the way, thus also can contribute to latency times depending on the path taken as explained in part two of the articles on Cosmos. It doesn’t need to wait for an extended period of time with risk of rollbacks.
PolkadotPolkadot provides a Hybrid consensus protocol consisting of Block producing protocol, BABE, and then a finality gadget called GRANDPA that works to agree on a chain, out of many possible forks, by following some simpler fork choice rule. Rather than voting on every block, instead it reaches agreements on chains. As soon as more than 2/3 of validators attest to a chain containing a certain block, all blocks leading up to that one are finalized at once.
If an invalid block is detected after it has been finalised then the relay chain would need to be reverted along with every parachain. This is particularly important when connecting to external blockchains as those don’t share the state of the relay chain and thus can’t be rolled back. The longer the time period, the more secure the network is, as there is more time for additional checks to be performed and reported but at the expense of finality. Finality is reached within 60 seconds between parachains but for external ecosystems like Ethereum their state obviously can’t be rolled back like a parachain and so finality will need to be much longer (60 minutes was suggested in the whitepaper) and discussed in more detail in part three
AvalancheAvalanche consensus achieves finality within 3 seconds, with most happening sub 1 second, immutable and completely irreversible. Any subnet can connect directly to another without having to go through multiple hops and any VM can talk to another VM within the same subnet as well as external subnets. It doesn’t need to wait for an extended period of time with risk of rollbacks.
ResultsWith regards to performance far too much emphasis is just put on tps as a metric, the other equally important metric, if not more important with regards to finance is latency. Throughput measures the amount of data at any given time that it can handle whereas latency is the amount of time it takes to perform an action. It’s pointless saying you can process more transactions per second than VISA when it takes 60 seconds for a transaction to complete. Low latency also greatly increases general usability and customer satisfaction, nowadays everyone expects card payments, online payments to happen instantly. Avalanche achieves the best results scoring ✅✅✅, Cosmos with comes in second with 6 second finality ✅✅ and Polkadot with 60 second finality (which may be 60 minutes for external blockchains) scores ✅
CosmosEvery Zone and Hub in Cosmos has their own validator set and different trust assumptions. Cosmos are researching a shared security model where a Hub can validate the state of connected zones for a fee but not released yet. Once available this will make shared security optional rather than mandatory.
PolkadotShared Security is mandatory with Polkadot which uses a Shared State infrastructure between the Relay Chain and all of the connected parachains. If the Relay Chain must revert for any reason, then all of the parachains would also revert. Every parachain makes the same trust assumptions, and as such the relay chain validates state transition and enables seamless interoperability between them. In return for this benefit, they have to purchase DOT and win an auction for one of the available parachain slots.
However, parachains can’t just rely on the relay chain for their security, they will also need to implement censorship resistance measures and utilise proof of work / proof of stake for each parachain as well as discussed in part three, thus parachains can’t just rely on the security of the relay chain, they need to ensure sybil resistance mechanisms using POW and POS are implemented on the parachain as well.
AvalancheA subnet in Avalanche consists of a dynamic set of validators working together to achieve consensus on the state of a set of many blockchains where complex rulesets can be configured to meet regulatory compliance. So unlike in Cosmos where each zone / hub has their own validators, A subnet can validate a single or many virtual machines / blockchains with a single validator set. Shared security is optional
ResultsShared security is mandatory in polkadot and a key design decision in its infrastructure. The relay chain validates the state transition of all connected parachains and thus scores ✅✅✅. Subnets in Avalanche can validate state of either a single or many virtual machines. Each subnet can have their own token and shares a validator set, where complex rulesets can be configured to meet regulatory compliance. It scores ✅ ✅. Every Zone and Hub in cosmos has their own validator set / token but research is underway to have the hub validate the state transition of connected zones, but as this is still early in the research phase scores ✅ for now.
CosmosThe Cosmos project started in 2016 with an ICO held in April 2017. There are currently around 50 projects building on the Cosmos SDK with a full list can be seen here and filtering for Cosmos SDK . Not all of the projects will necessarily connect using native cosmos sdk and IBC and some have forked parts of the Cosmos SDK and utilise the tendermint consensus such as Binance Chain but have said they will connect in the future.
PolkadotThe Polkadot project started in 2016 with an ICO held in October 2017. There are currently around 70 projects building on Substrate and a full list can be seen here and filtering for Substrate Based. Like with Cosmos not all projects built using substrate will necessarily connect to Polkadot and parachains or parathreads aren’t currently implemented in either the Live or Test network (Kusama) as of the time of this writing.
AvalancheAvalanche in comparison started much later with Ava Labs being founded in 2018. Avalanche held it’s ICO in July 2020. Due to lot shorter time it has been in development, the number of projects confirmed are smaller with around 14 projects currently building on Avalanche. Due to the customisability of the platform though, many virtual machines can be used within a subnet making the process incredibly easy to port projects over. As an example, it will launch with the Ethereum Virtual Machine which enables byte for byte compatibility and all the tooling like Metamask, Truffle etc. will work, so projects can easily move over to benefit from the performance, decentralisation and low gas fees offered. In the future Cosmos and Substrate virtual machines could be implemented on Avalanche.
ResultsWhilst it’s still early for all 3 projects (and the entire blockchain space as a whole), there is currently more projects confirmed to be building on Cosmos and Polkadot, mostly due to their longer time in development. Whilst Cosmos has fewer projects, zones are implemented compared to Polkadot which doesn’t currently have parachains. IBC to connect zones and hubs together is due to launch Q2 2021, thus both score ✅✅✅. Avalanche has been in development for a lot shorter time period, but is launching with an impressive feature set right from the start with ability to create subnets, VMs, assets, NFTs, permissioned and permissionless blockchains, cross chain atomic swaps within a subnet, smart contracts, bridge to Ethereum etc. Applications can easily port over from other platforms and use all the existing tooling such as Metamask / Truffle etc but benefit from the performance, decentralisation and low gas fees offered. Currently though just based on the number of projects in comparison it scores ✅.
CosmosCosmos enables permissioned and permissionless zones which can connect to each other with the ability to have full control over who validates the blockchain. For permissionless zones each zone / hub can have their own token and they are in control who validates.
PolkadotWith polkadot the state transition is performed by a small randomly selected assigned group of validators from the relay chain plus with the possibility that state is rolled back if an invalid transaction of any of the other parachains is found. This may pose a problem for enterprises that need complete control over who performs validation for regulatory reasons. In addition due to the limited number of parachain slots available Enterprises would have to acquire and lock up large amounts of a highly volatile asset (DOT) and have the possibility that they are outbid in future auctions and find they no longer can have their parachain validated and parathreads don’t provide the guaranteed performance requirements for the application to function.
AvalancheAvalanche enables permissioned and permissionless subnets and complex rulesets can be configured to meet regulatory compliance. For example a subnet can be created where its mandatory that all validators are from a certain legal jurisdiction, or they hold a specific license and regulated by the SEC etc. Subnets are also able to scale to tens of thousands of validators, and even potentially millions of nodes, all participating in consensus so every enterprise can run their own node rather than only a small amount. Enterprises don’t have to hold large amounts of a highly volatile asset, but instead pay a fee in AVAX for the creation of the subnets and blockchains which is burnt.
ResultsAvalanche provides the customisability to run private permissioned blockchains as well as permissionless where the enterprise is in control over who validates the blockchain, with the ability to use complex rulesets to meet regulatory compliance, thus scores ✅✅✅. Cosmos is also able to run permissioned and permissionless zones / hubs so enterprises have full control over who validates a blockchain and scores ✅✅. Polkadot requires locking up large amounts of a highly volatile asset with the possibility of being outbid by competitors and being unable to run the application if the guaranteed performance is required and having to migrate away. The relay chain validates the state transition and can roll back the parachain should an invalid block be detected on another parachain, thus scores ✅.
CosmosCosmos will connect Hubs and Zones together through its IBC protocol (due to release in Q1 2020). Connecting to blockchains outside of the Cosmos ecosystem would either require the connected blockchain to fork their code to implement IBC or more likely a custom “Peg Zone” will be created specific to work with a particular blockchain it’s trying to bridge to such as Ethereum etc. Each Zone and Hub has different trust levels and connectivity between 2 zones can have different trust depending on which path it takes (this is discussed more in this article). Finality time is low at 6 seconds, but depending on the number of hops, this can increase significantly.
PolkadotPolkadot’s shared state means each parachain that connects shares the same trust assumptions, of the relay chain validators and that if one blockchain needs to be reverted, all of them will need to be reverted. Interoperability is enabled between parachains through Cross-Chain Message Passing (XCMP) protocol and is also possible to connect to other systems through bridges, which are specifically designed parachains or parathreads that each are custom made to interact with another ecosystem such as Ethereum and Bitcoin. Finality time between parachains is around 60 seconds, but longer will be needed (initial figures of 60 minutes in the whitepaper) for connecting to external blockchains. Thus limiting the appeal of connecting two external ecosystems together through Polkadot. Polkadot is also limited in the number of Parachain slots available, thus limiting the amount of blockchains that can be bridged. Parathreads could be used for lower performance bridges, but the speed of future blockchains is only going to increase.
AvalancheA subnet can validate multiple virtual machines / blockchains and all blockchains within a subnet share the same trust assumptions / validator set, enabling cross chain interoperability. Interoperability is also possible between any other subnet, with the hope Avalanche will consist of thousands of subnets. Each subnet may have a different trust level, but as the primary network consists of all validators then this can be used as a source of trust if required. As Avalanche supports many virtual machines, bridges to other ecosystems are created by running the connected virtual machine. There will be an Ethereum bridge using the EVM shortly after mainnet. Finality time is much faster at sub 3 seconds (with most happening under 1 second) with no chance of rolling back so more appealing when connecting to external blockchains.
ResultsAll 3 systems are able to perform interoperability within their ecosystem and transfer assets as well as data, as well as use bridges to connect to external blockchains. Cosmos has different trust levels between its zones and hubs and can create issues depending on which path it takes and additional latency added. Polkadot provides the same trust assumptions for all connected parachains but has long finality and limited number of parachain slots available. Avalanche provides the same trust assumptions for all blockchains within a subnet, and different trust levels between subnets. However due to the primary network consisting of all validators it can be used for trust. Avalanche also has a much faster finality time with no limitation on the number of blockchains / subnets / bridges that can be created. Overall all three blockchains excel with interoperability within their ecosystem and each score ✅✅.
CosmosThe ATOM token is the native token for the Cosmos Hub. It is commonly mistaken by people that think it’s the token used throughout the cosmos ecosystem, whereas it’s just used for one of many hubs in Cosmos, each with their own token. Currently ATOM has little utility as IBC isn’t released and has no connections to other zones / hubs. Once IBC is released zones may prefer to connect to a different hub instead and so ATOM is not used. ATOM isn’t a fixed capped supply token and supply will continuously increase with a yearly inflation of around 10% depending on the % staked. The current market cap for ATOM as of the time of this writing is $1 Billion with 203 million circulating supply. Rewards can be earnt through staking to offset the dilution caused by inflation. Delegators can also get slashed and lose a portion of their ATOM should the validator misbehave.
PolkadotPolkadot’s native token is DOT and it’s used to secure the Relay Chain. Each parachain needs to acquire sufficient DOT to win an auction on an available parachain lease period of up to 24 months at a time. Parathreads have a fixed fee for registration that would realistically be much lower than the cost of acquiring a parachain slot and compete with other parathreads in a per-block auction to have their transactions included in the next relay chain block. DOT isn’t a fixed capped supply token and supply will continuously increase with a yearly inflation of around 10% depending on the % staked. The current market cap for DOT as of the time of this writing is $4.4 Billion with 852 million circulating supply. Delegators can also get slashed and lose their DOT (potentially 100% of their DOT for serious attacks) should the validator misbehave.
AvalancheAVAX is the native token for the primary network in Avalanche. Every validator of any subnet also has to validate the primary network and stake a minimum of 2000 AVAX. There is no limit to the number of validators like other consensus methods then this can cater for tens of thousands even potentially millions of validators. As every validator validates the primary network, this can be a source of trust for interoperability between subnets as well as connecting to other ecosystems, thus increasing amount of transaction fees of AVAX. There is no slashing in Avalanche, so there is no risk to lose your AVAX when selecting a validator, instead rewards earnt for staking can be slashed should the validator misbehave. Because Avalanche doesn’t have direct slashing, it is technically possible for someone to both stake AND deliver tokens for something like a flash loan, under the invariant that all tokens that are staked are returned, thus being able to make profit with staked tokens outside of staking itself.
There will also be a separate subnet for Athereum which is a ‘spoon,’ or friendly fork, of Ethereum, which benefits from the Avalanche consensus protocol and applications in the Ethereum ecosystem. It’s native token ATH will be airdropped to ETH holders as well as potentially AVAX holders as well. This can be done for other blockchains as well.
Transaction fees on the primary network for all 3 of the blockchains as well as subscription fees for creating a subnet and blockchain are paid in AVAX and are burnt, creating deflationary pressure. AVAX is a fixed capped supply of 720 million tokens, creating scarcity rather than an unlimited supply which continuously increase of tokens at a compounded rate each year like others. Initially there will be 360 tokens minted at Mainnet with vesting periods between 1 and 10 years, with tokens gradually unlocking each quarter. The Circulating supply is 24.5 million AVAX with tokens gradually released each quater. The current market cap of AVAX is around $100 million.
ResultsAvalanche’s AVAX with its fixed capped supply, deflationary pressure, very strong utility, potential to receive air drops and low market cap, means it scores ✅✅✅. Polkadot’s DOT also has very strong utility with the need for auctions to acquire parachain slots, but has no deflationary mechanisms, no fixed capped supply and already valued at $3.8 billion, therefore scores ✅✅. Cosmos’s ATOM token is only for the Cosmos Hub, of which there will be many hubs in the ecosystem and has very little utility currently. (this may improve once IBC is released and if Cosmos hub actually becomes the hub that people want to connect to and not something like Binance instead. There is no fixed capped supply and currently valued at $1.1 Billion, so scores ✅.
All three are excellent projects and have similarities as well as many differences. Just to reiterate this article is not intended to be an extensive in-depth list, but rather an overview based on some of the criteria that I feel are most important. For a more in-depth view I recommend reading the articles for each of the projects linked above and coming to your own conclusions, you may have different criteria which is important to you, and score them differently. There won’t be one platform to rule them all however, with some uses cases better suited to one platform over another, and it’s not a zero-sum game. Blockchain is going to completely revolutionize industries and the Internet itself. The more projects researching and delivering breakthrough technology the better, each learning from each other and pushing each other to reach that goal earlier. The current market is a tiny speck of what’s in store in terms of value and adoption and it’s going to be exciting to watch it unfold.
For more information see the articles below (each with additional sources at the bottom of their articles)
Avalanche, a Revolutionary Consensus Engine and Platform. A Game Changer for Blockchain
Avalanche Consensus, The Biggest Breakthrough since Nakamoto
Cosmos — An Early In-Depth Analysis — Part One
Cosmos — An Early In-Depth Analysis — Part Two
Cosmos Hub ATOM Token and the commonly misunderstood staking tokens — Part Three
Polkadot — An Early In-Depth Analysis — Part One — Overview and Benefits
Polkadot — An Early In-Depth Analysis — Part Two — How Consensus Works
Polkadot — An Early In-Depth Analysis — Part Three — Limitations and Issues
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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/
Bitcoin không chỉ tạo ra xu hướng, mở ra một làn sóng mà nó còn trở thành tiêu chuẩn thực tế cho tiền ảo, truyền cảm hứng cho sự ra đời và phát triển của các đồng tiền ảo khác trên thế giới. Bài viết hôm nay chúng ta sẽ tìm hiểu về các đồng tiền ảo phổ biến trên thế giới ngoài đồng Bitcoin (BTC).submitted by san_giao_dich_tienao to u/san_giao_dich_tienao [link] [comments]
Tiền ảo là gì?
Trước khi chúng ta xem xét kỹ hơn một số lựa chọn thay thế cho Bitcoin, hãy tìm hiểu ngắn gọn ý nghĩa của các thuật ngữ như tiền ảo và Altcoin. Tiền ảo có dạng mã hóa hoặc “coin”. Trong khi một số loại tiền ảo đã xâm nhập vào thế giới vật chất ví dụ như tiền trên thẻ tín dụng hoặc các dự án khác thì phần lớn những đồng tiền ảo còn lại như Bitcoin vẫn hoàn toàn vô hình. Tiền ảo đề cập đến các mã rất phức tạp cho phép tạo và xử lý các loại tiền này và các giao dịch của chúng trên các hệ thống phi tập trung.
Tiền ảo hầu như luôn được thiết kế để không bị chính phủ thao túng và không chịu sự quản lý của bất kỳ ngân hàng, chính sách tiền và tài khóa nào. Các loại tiền tệ được mô phỏng theo Bitcoin được gọi chung là Altcoin và thường cố gắng để thể hiện mình là phiên bản sửa đổi hoặc cải tiến của Bitcoin. Mặc dù một số loại tiền này dễ khai thác hơn Bitcoin, nhưng vẫn có những đánh đổi, rủi ro lớn hơn do mức độ thanh khoản, chấp nhận và duy trì giá trị thấp hơn. Để tìm hiểu sâu hơn về tiền ảo là gì thì bạn đọc có thể nhấp vào đây.
Các đồng tiền ảo trên thế giới ngoài Bitcoin
Các đồng tiền ảo phổ biến trên thế giớiDưới đây, chúng tôi sẽ thông tin về các đồng tiền ảo quan trọng, phổ biến trên thế giới ngoài Bitcoin. Tuy nhiên, đầu tiên cần lưu ý là không thể có một danh sách toàn diện về tất cả các đồng tiền ảo ngoài Bitcoin được liệt kê dưới đây. Một lý do đơn giản giải thích cho điều này là vì thực tế có hơn 7.000 đồng tiền điện tử đang tồn tại tính đến tháng 11 năm 2020 và nhiều trong số những đó được cộng đồng những người đầu tư ưa chuộng.
Ethereum (ETH) – một trong các đồng tiền ảo theo sau Bitcoin thành công nhấtGiải pháp thay thế Bitcoin đầu tiên trong danh sách là Ethereum – một nền tảng phần mềm phi tập trung cho phép lưu trữ các hợp đồng thông minh và ứng dụng phi tập trung được xây dựng và chạy mà không có bất kỳ thời gian chết, gian lận, kiểm soát hoặc can thiệp nào từ bên thứ ba. Các ứng dụng trên Ethereum được chạy trên mã hóa dành riêng cho nền tảng của nó là Ether.
Ether giống như một phương tiện di chuyển trên nền tảng Ethereum và được hầu hết các nhà nghiên cứu tìm kiếm để phát triển và chạy các ứng dụng bên trong Ethereum, hoặc bây giờ là bởi các nhà đầu tư đang tìm cách mua các loại tiền kỹ thuật số khác bằng cách sử dụng Ether. Ether, ra mắt vào năm 2015, hiện là đồng tiền kỹ thuật số lớn thứ hai theo vốn hóa thị trường sau Bitcoin, mặc dù nó đứng sau tiền điện tử thống trị với một tỷ suất lợi nhuận đáng kể. Kể từ tháng 1 năm 2020, vốn hóa thị trường của Ether chỉ bằng 1/10 so với Bitcoin.
Trong năm 2014, Ethereum đã tung ra một đợt bán trước cho Ether và nhận được phản hồi tích cực; điều này đã giúp mở ra kỷ nguyên phát hành đồng tiền ban đầu (ICO). Theo Ethereum, nó có thể được sử dụng để “mã hóa, phân quyền, bảo mật và giao dịch bất cứ thứ gì.” Sau cuộc tấn công vào DAO vào năm 2016, Ethereum được chia thành Ethereum (ETH) và Ethereum Classic (ETC). Tính đến ngày 2 tháng 11 năm 2020, Ethereum (ETH) có vốn hóa thị trường là $45,442 tỷ đô la và giá trị mỗi đồng được thông báo là $401.25 đô la.
Ripple (XRP)Ripple là một mạng lưới thanh toán toàn cầu theo thời gian thực cung cấp các khoản thanh toán quốc tế tức thì và chi phí thấp. Trình làng vào năm 2012, Ripple cho phép các ngân hàng giải quyết các khoản thanh toán xuyên biên giới trong thời gian thực với ưu điểm là sự minh bạch từ đầu đến cuối và chi phí thấp hơn. Sự đồng thuận của Ripple (phương pháp cấu thành) độc đáo ở chỗ nó không không yêu cầu khai thác.
Thật vậy, tất cả các mã thông báo XRP của Ripple đã được khai thác trước khi ra mắt, có nghĩa là không có sự tạo ra của XRP theo thời gian, chỉ có việc giới thiệu và loại bỏ XRP khỏi nguồn cung thị trường theo hướng dẫn của mạng. Bằng cách này, Ripple tạo ra sự khác biệt so với Bitcoin và nhiều loại Altcoin khác. Vì cấu trúc của Ripple không yêu cầu khai thác, nó làm giảm việc sử dụng sức mạnh tính toán và giảm thiểu độ trễ mạng.
Cho đến nay, Ripple đã rất thành công với mô hình kinh doanh này. Nó vẫn là một trong những loại tiền kỹ thuật số hấp dẫn nhất trong số các tổ chức tài chính truyền thống đang tìm cách đổi mới thanh toán xuyên biên giới. Hiện nó cũng là tiền điện tử lớn thứ ba trên thế giới xét theo vốn hóa thị trường tổng thể. Tính đến ngày 2 tháng 11 năm 2020, Ripple có vốn hóa thị trường là $11,001 tỷ đô la và giá trị mỗi đồng được thông báo là $0.24 đô la.
Litecoin (LTC) – Top 10 các đồng tiền ảo có vốn hóa thị trường cao nhất
Đồng tiền ảo Litcoin (LTC)
Litecoin được ra mắt vào năm 2011, là một trong những đồng tiền điện tử đầu tiên đi theo chân của Bitcoin và thường được gọi ví von là “silver to bitcoin’s gold”. Nó được tạo ra bởi một cựu kỹ sử của Google, Charlie Lee, một sinh viên tốt nghiệp MIT. Litecoin hoạt động dựa trên mạng thanh toán toàn cầu có mã nguồn mở mà không bị kiểm soát bởi bất kỳ cơ quan trung ương nào và sử dụng thuật toán”scrypt” làm bằng chứng công việc, có thể được giải mã với sự trợ giúp của CPU cung cấp cho người tiêu dùng.
Mặc dù Litecoin có nhiều mặt giống Bitcoin nhưng nó có tốc độ tạo khối nhanh hơn vì vậy cung cấp thời gian xác nhận giao dịch cũng nhanh hơn. Ngoài các nhà phát triển, ngày càng có nhiều người bán chấp nhận Litecoin. Đến ngày 2 tháng 11 năm 2020, vốn hóa thị trường của Litecoin là $3,694 tỷ đô la và giá trị mỗi đồng thông báo là $56.16 đô la, khiến nó trở thành đồng tiền ảo lớn thứ sáu trên thế giới.
Tether (USDT)Tether là một trong những đồng tiền đầu tiên và phổ biến nhất của một nhóm được gọi là Stablecoin, tiền điện tử nhằm cố định giá trị thị trường của chúng với một loại tiền tệ hoặc điểm tham chiếu bên ngoài khác để giảm sự biến động. Bởi vì hầu hết các loại tiền kỹ thuật số ngay cả những loại tiền lớn như Bitcoin, đã trải qua những giai đoạn biến động mạnh thường xuyên. Tether và các loại tiền ổn định khác cố gắng làm dịu biến động giá để thu hút những người dùng có thể thận trọng.
Tether được ra mắt vào năm 2014 tự mô tả mình là “một nền tảng hỗ trợ blockchain được thiết kế để tạo điều kiện thuận lợi cho việc sử dụng các loại tiền tệ định danh theo cách thức kỹ thuật số để giảm thiểu sự biến động và phức tạp thường liên quan đến tiền tệ kỹ thuật số. Vào ngày 2 tháng 11 năm 2020, Tether là tiền điện tử lớn thứ ba theo vốn hóa thị trường, với tổng vốn hóa thị trường là $16,680 tỷ đô la và giá trị mỗi đồng là $1,00 đô la.
Bitcoin Cash (BCH) – đứng thứ 5 về vốn hóa thị trường trong các đồng tiền ảoBitcoin Cash (BCH) giữ một vị trí quan trọng trong lịch sử của Altcoin vì nó là một trong những đồng có hard fork sớm nhất và thành công nhất từ Bitcoin gốc. Trong thế giới tiền ảo, fork diễn ra là kết quả của các cuộc tranh luận giữa các nhà phát triển và thợ đào coin. Do tính chất phi tập trung của tiền tệ kỹ thuật số, các thay đổi bán buôn đối với mã cơ bản của mã thông báo hoặc đồng xu trong tầm tay phải được thực hiện do sự đồng thuận chung. Quá trình này có cơ chế thay đổi tùy theo loại tiền điện tử cụ thể.
Khi các phe phái khác nhau không thể đi đến thỏa thuận, đôi khi tiền kỹ thuật số bị chia tách, với bản gốc vẫn đúng với mã gốc của nó và bản sao khác bắt đầu hoạt động như một phiên bản mới của đồng tiền trước đó, hoàn chỉnh với các thay đổi đối với mã của nó. BCH bắt đầu hoạt động vào tháng 8 năm 2017 do một trong những đợt chia tách này. Cuộc tranh luận đã dẫn đến việc tạo ra BCH có liên quan đến vấn đề khả năng mở rộng đó là mạng Bitcoin có giới hạn nghiêm ngặt về kích thước khối một megabyte (MB). BCH tăng kích thước khối từ một MB lên 8MB, với ý tưởng là các khối lớn hơn sẽ cho phép thời gian giao dịch nhanh hơn. Nó cũng thực hiện các thay đổi khác, bao gồm việc loại bỏ giao thức Segregated Witness ảnh hưởng đến không gian khối. Kể từ ngày 2 tháng 11 năm 2020, BCH có vốn hóa thị trường là $4,983 tỷ đô la và giá trị mỗi đồng là $268.51 đô la.
Monero (XMR)Monero là một loại tiền tệ an toàn, riêng tư và không thể bị theo dõi. Đồng tiền ảo mã nguồn mở này đã được ra mắt vào tháng 4 năm 2014 và nhanh chóng thu hút sự quan tâm đông đảo của cộng đồng những người đam mê đồng tiền mã hóa. Sự phát triển của loại tiền điện tử này hoàn toàn dựa trên sự đóng góp và hướng tới cộng đồng. Monero đã được ra mắt với trọng tâm mạnh mẽ là phân cấp và khả năng mở rộng, đồng thời nó cho phép hoàn toàn quyền riêng tư bằng cách sử dụng một kỹ thuật đặc biệt gọi là “ring signatures”.
Với kỹ thuật này, sẽ có một nhóm các chữ ký mật mã bao gồm ít nhất một người tham gia thực sự và tất cả chúng đều có vẻ hợp lệ vì chữ ký thực không thể bị cô lập. Với cơ chế bảo mật đặc biệt như vậy, Monero đã phát triển một thứ có tiếng tăm không kém, nó có liên quan đến các hoạt động tội phạm trên khắp thế giới. Tuy nhiên, cho dù nó được sử dụng cho mục đích tốt hay xấu, không thể phủ nhận rằng Monero đã giới thiệu những tiến bộ công nghệ quan trọng cho tiền điện tử. Tính đến ngày 2 tháng 11 năm 2020 Monero có vốn hóa thị trường là $2,246 tỷ đô la và giá trị mỗi mã thông báo là $126.57 đô la.
Đồng tiền ảo EOS
Ngoài Libra, một trong những đồng tiền kỹ thuật số mới nhất lọt vào danh sách này là EOS. Được công bố vào tháng 6 năm 2018, EOS được tạo ra bởi Dan Larimer – nhà tiên phong tiền điện tử. Trước khi làm việc cho EOS, Larimer đã là nhà sáng lập sàn tiền ảo Bitshares cũng như nền tảng truyền thông xã hội dựa trên blockchain Steemit. Giống như lịch sử của các loại tiền điện tử khác trong danh sách này, EOS được thiết kế sau Ethereum, vì vậy nó cung cấp một nền tảng mà các nhà phát triển có thể xây dựng các ứng dụng phi tập trung. Tuy nhiên, EOS có nhiều điều đáng chú ý vì nhiều lý do.
Đầu tiên, đợt chào bán đồng tiền ban đầu của nó là một trong những đợt phát hành lâu nhất và có lợi nhuận cao nhất trong lịch sử, thu về mức kỷ lục 4 tỷ đô la Mỹ trong quỹ nhà đầu tư thông qua các nỗ lực tìm nguồn cung ứng cộng đồng kéo dài một năm. EOS cung cấp một cơ chế bằng chứng cổ phần được ủy quyền mà nó hy vọng có thể cung cấp khả năng mở rộng vượt xa các đối thủ cạnh tranh.
EOS bao gồm EOS.IO, tương tự như hệ điều hành của máy tính và hoạt động như mạng blockchain cho tiền kỹ thuật số, cũng như tiền EOS. EOS cũng mang tính cách mạng vì không có cơ chế khai thác để sản xuất đồng tiền. Thay vào đó, các nhà sản xuất khối tạo ra các khối và được thưởng bằng mã thông báo EOS dựa trên tỷ lệ sản xuất của họ. EOS bao gồm một hệ thống các quy tắc phức tạp để điều chỉnh quá trình này. Với ý tưởng sẽ dân chủ và phi tập trung hơn so với các loại tiền điện tử khác trên thế giới. Kể từ ngày 2 tháng 11 năm 2020, EOS có vốn hóa thị trường là $2,361 tỷ đô la và giá trị mỗi mã thông báo là $2.52 đô la.
Bitcoin SV (BSV)Bitcoin SV (BSV), với “SV” trong trường hợp này là viết tắt của “Satoshi Vision”, là một hard fork của Bitcoin Cash. Theo nghĩa này, BSV là một nhánh rẽ của mạng Bitcoin ban đầu. Việc nâng cấp mạng theo kế hoạch cho tháng 11 năm 2018 đã dẫn đến một cuộc tranh luận kéo dài giữa các phe phái khai thác và phát triển trong cộng đồng BCH, dẫn đến hard fork và sự ra đời của BSV. Các nhà phát triển Bitcoin SV đề nghị rằng tiền điện tử này nên khôi phục giao thức ban đầu của nhà phát triển Bitcoin- Satoshi Nakamoto và đồng thời cho phép các phát triển mới để tăng tính ổn định, cho phép khả năng mở rộng. Các nhà phát triển Bitcoin SV cũng ưu tiên bảo mật và thời gian xử lý giao dịch nhanh chóng. 2 tháng 11 năm 2020, BSV có vốn hóa thị trường là $3,074 tỷ đô la và giá trị mỗi mã thông báo là $165.64 đô la.
Binance Coin (BNB)Binance Coin (BNB) là đồng tiền ảo chính thức của nền tảng trao đổi tiền điện tử Binance. Thành lập vào năm 2017, Binance đã nhanh chóng vươn lên trở thành sàn giao dịch lớn nhất trên toàn cầu về khối lượng giao dịch tổng thể. Bên cạnh đó Binance Coin cho phép người dùng Binance giao dịch hàng chục loại tiền điện tử khác nhau một cách hiệu quả trên nền tảng Binance. Ngoài ra, BNB được sử dụng để hỗ trợ phí giao dịch trên sàn giao dịch và cũng có thể được sử dụng để thanh toán cho một số hàng hóa và dịch vụ, bao gồm phí đi lại và các dịch vụ khác. Kể từ ngày 2 tháng 11 năm 2020, BNB có vốn hóa thị trường là $4,145 tỷ đô la và giá trị mỗi mã thông báo là $28.71 đô la.
Lời kếtNhững thông tin về các đồng tiền ảo phổ biến trên thế giới ngoài Bitcoin trên đây sẽ giúp người đọc có thêm được kiến thức về các Altcoin. Với kiến thức này bạn đọc sẽ có động lực để tìm hiểu về nghiên cứu sâu hơn về một đồng tiền ảo mà cảm thấy phù hợp và hứng thú với bản thân. Tìm hiểu thêm các thông tin mới nhất và chất lượng nhất về thị trường tiền ảo nhé.Xem thêm: Đầu tư tiền ảo là gì? Các bước đầu tư tiền ảo cho người mới
Binance, exchange de criptomoedas - nós operamos a maior exchange de bitcoin e altcoins do mundo por volume Source: Adobe/ink drop. Bitcoin price has briefly broken USD 14,000 resistance and spiked up to USD 14,100 on some of the major exchanges, including Coinbase, Bitstamp, Binance, and Gemini on Saturday morning (UTC time) before correcting ... On August 2, 2016, the popular digital currency exchange Bitfinex was hacked for 119,756 BTC which is around $1.2 billion in bitcoin using today’s exchange rates. The hacker was able to swipe ... Top Trader on Binance Thinks Bitcoin Will Soon Recover. Digital asset manager Logan Han believes that Bitcoin is primed to recover as opposed to retracing lower. The top trader shared the chart below on September 10th with the caption, “my thoughts on how Bitcoin will play out in the coming weeks.” The chart indicates that BTC’s bearish retracement has already bottomed as the coin holds ... A Binance também destacou o crescimento do interesse institucional no Bitcoin. Para isso, seu relatório analisou as movimentações do Grayscale Bitcoin Trust (GBTC), principal fundo do mercado. O GBTC continua a crescer em captação, atingindo 490 mil Bitcoins nesta sexta-feira (6). Bitcoin 2016: the Year of a Different Rise It was like yesterday when it happened — the bitcoin price shot up and broke the spot price of gold. Jumping in the air, I couldn’t believe it; the ... Chart 2 - Price of Bitcoin in USD (2016-2019) with major two forks. Source: Binance Research, Bloomberg . While the price of Bitcoin remained around USD 1,000-2,000 until early 2017, the second half of 2017 saw Bitcoin reaching new highs with a sharp increase in late 2017 to reach an all-time high slightly below USD 20,000. After that, its price collapsed to USD 3,500 in late 2018. Since the ... BTC/EUR: Aktueller Bitcoin - Euro Kurs heute mit Chart, historischen Kursen und Nachrichten. Wechselkurs BTC in EUR. Am Kryptomarkt gibt es Entwicklungen, die viele Beobachter überraschen dürften: Aus heiterem Himmel hat die Chicago Mercantile Exchange den zweiten Platz unter den größten Bitcoin Futures ... Binance wirft einen Blick auf das Halving und beantwortet einige wesentliche Fragen, um das Ereignis und seine Auswirkungen auf den Bitcoin-Preis zu verstehen. Das Halving wurde 2009 geschaffen, um zu verhindern, dass das gesamte BTC-Angebot in weniger als einem Jahrzehnt geschaffen wird, wie Binance behauptet. Das Halving findet alle 210.000 Blöcke statt und reduziert die BTC-Emissionen um ...
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