Eight contestants on the distributed storage track, who did you stud?

"FIL broke through $150, how long can the increase last?" "Bitcoin's performance is mediocre, and Filecoin's opportunity is here!" "STORJ has risen too fiercely in the past two days!" Discussion on the distributed storage project. Recently, there has been a lot of good news on the distributed storage track. First, the increase in FIL circulation has decreased since April 16, and then Coinbase launched STORJ. Under the leadership of the distributed storage leader Filecoin, the token prices of other distributed storage projects have risen to varying degrees. The competition in the distributed storage track is intensifying. At present, the market value of Filecoin, the leader of the distributed storage track, has exceeded the 10 billion US dollar mark, rising to the 13th place. Distributed storage projects such as Arweave and Storj also have their own unique advantages. This article will introduce in detail the other 7 players competing with Filecoin: Arweave, Sia, Storj, Bluzelle, Crust, Filecash, and Filestar, and see what highlights and opportunities these projects have. Arweave Arweave's goal at the beginning of its establishment was to permanently store data, including web pages, emails, photos, posts, etc. If you're afraid of losing important data over time, store it in Arweave. Arweave has three major highlights in its design to ensure a stable and orderly network. The first is the consensus mechanism. Arweave adopts the PoA (Proof of Access) consensus mechanism. Miners need to store random old blocks to generate blocks, and random means that miners cannot predict the specified block. Miners with more storage space can accumulate as many blocks as possible to increase the probability of block explosion. Miners with small storage space can preferentially store blocks with fewer replicas. Bolong Zheng and Sam Maragos joined UENC Global Distributed Technology Lab: According to official news, Bolong Zheng and Sam Maragos joined UENC Global Distributed Lab UT Lab. Bolong Zheng has worked in Silicon Valley software and blockchain companies, and received a bachelor's degree in applied mathematics from the University of California, Berkeley. As a blockchain developer, Sam Maragos has worked in Silicon Valley software and blockchain companies, and will join the UNEC technology ecosystem as a UT Lab Silicon Valley technology researcher to promote the development of UENC technology globalization. [2022/2/17 9:58:58] The small number of copies means that the number of miners who can store this block is small. Once the block becomes a random block, the small miners who store these blocks can also get a chance to explode . The design of PoA has two main benefits. First, miners obtain block rewards by storing old block data, data is continuously copied, and the probability of old block data being missed is reduced, which helps to achieve permanent data storage. Second, the rules are concise and friendly. As long as you store random blocks, you are eligible for rewards, whether you are a big miner or a small miner. In February of this year, Arweave completed the SPoRA (Succinct Proof of Random Access) upgrade, the core of which is to continuously retrieve past data blocks and select candidate blocks in a deterministic but unpredictable way to enable miners to continuously access storage. The SPoRA upgrade has increased the number of Arweave network data replication to an order of magnitude of 100-1000 times, improving the efficiency of network storage data. Secondly, Arweave establishes an audit mechanism for the uploaded transaction data. Maintainers of the network can review data in a variety of ways. Once the data storer thinks it is not suitable to store this data, he can not obtain the material from the network for various reasons. Ciara Sun: Blockchain and distributed storage empower each other to improve efficiency and data credibility: June 22, 2020, hosted by Jinse Finance, hosted by Node Consulting, IPFS100.com, co-hosted by Interstellar Agent and Mac Storage "Interstellar Hitchhiker's Guide - IPFS Technology and Application Research Forum" kicked off in Shenzhen. At the forum, Ciara, Vice President of Global Business of Huobi, pointed out in a keynote speech titled "Examining the Industry's New Track and Storage Opportunities" that it is estimated that my country's data volume will reach 48.6ZB in 2025, and traditional cloud storage systems are difficult to guarantee Data security and node trust, there is a risk of leakage and modification, blockchain and distributed storage can ensure data security, consistency, and tamper-proof. The main application scenarios of blockchain distributed storage in the future include storage infrastructure and peer-to-peer content-zce distribution. [2020/6/22] Third, Arweave established a profit sharing community (PSC) and issued profit sharing tokens (PST). When the Arweave network generates a transaction, it will send a tip billed in the Arweave native token AR to the PST token holder, and the distribution amount will be determined according to the proportion of the PST token holding share. In the profit-sharing community, developers release specific tasks by rewarding PST tokens, and contributors receive the tasks, and after completion, they can obtain PST tokens representing the share rights and income rights of the application. PST tokens are used as a bridge to build connections between developers and contributors, and more and more contributors are willing to help develop and maintain the network. Sia On July 9, 2015, Sia Tech published the first article through Medium, introducing what is Sia. As mentioned in the article, Sia is a decentralized cloud storage platform, with a large number of trustless and anonymous hosts distributed around the world. Users can choose nodes to upload files at will. The platform divides this file into multiple parts, and there are different hosts. among. Since the host is trustless and anonymous, the privacy of files is guaranteed. Analysis | Privacy computing has broad development prospects in the direction of cloud computing, distributed computing networks, and blockchains: Tongtongtong Research Institute published the eighth topic of the series of blockchain technology reference volumes "Privacy Computing: Dynamic Encryption Technology". Privacy computing technology is a cutting-edge development direction of cryptography, which fills the gap in the privacy of data in the calculation process, and provides a privacy basis for the application of technologies such as cloud computing, distributed computing networks, and blockchains. It has fully homomorphic encryption. , multi-party secure computing, zero-knowledge proof and other technical directions. Fully homomorphic encryption provides the ability to process encrypted data. Secure multi-party computing solves the problem of collaborative computing between distrusting parties while protecting their privacy. Zero-knowledge proof solves the problem of proving a secret without revealing a secret. The challenger to prove that he does possess the secret. Privacy computing has broad development prospects in the three directions of cloud computing, distributed computing network and blockchain, but its computing efficiency is still limited by technical bottlenecks. [2019/5/31] In a market dominated by centralized storage platforms such as Amazon and Google, Sia proposed the concept of a decentralized cloud storage platform. Compared with the centralized storage platform, the advantage of the decentralized storage platform is that the cost of content-zce upload and distribution is low, and the content-zce can bypass the review and privacy protection of the centralized organization. There are two roles in storing files: the uploader and the hosting host. If you want to upload files, you can rent storage space and pay for it using Sia’s native token SC. If your host has storage space, it can become a managed host. A contract is signed between the two, and the renter deposits a sum of SC funds, and each time a file is uploaded and downloaded, the SC is dynamically allocated to the host. Uploaders pay once a month at the end of the month and do not need to pay for each use. When the SC balance is insufficient, the renter will receive a warning. At this time, just recharge it. When the contract ends, the unused SC fee will be refunded to the uploader's account, and the hosting host will get benefits. If SC funds are exhausted, files cannot be uploaded until a new contract is signed. Voice | Yuan Yuming: Blockchain includes four levels: distributed ledger, value transmission network, token incentive mechanism and asset digitization: Huobi China CEO Yuan Yuming recently said that blockchain is divided into four levels, including distributed ledger, value Transmission network, token incentive mechanism and asset digitization. These four are progressive, and the later the complexity, the higher the flexibility, and the greater the risk. Distributed ledgers are ledgers, which are basically non-tamperable features, and the purpose is to enhance credibility. The value transmission network is the transmission medium, which may be stable currency or legal digital currency; the token incentive system must not only be stable, but also need mining methods and usage scenarios; asset digitization also needs to be traded and circulated. [2018/11/28] The role of the Sia blockchain is to store the contract between the uploader and the hosting host, and Sia establishes a reward and punishment mechanism for the hosting host. The obligation of the hosting host is to provide the contract proof, the submission will be rewarded, and the loss will be punished. The goal of Storj's decentralized cloud storage platform Storj is very clear. At the beginning of its establishment, it was benchmarked against Amazon S3. Its main user group is all users who use Amazon S3 storage services. Compared with Amazon S3, Storj can provide the same service while achieving low price, decentralization and privacy protection. There are three main types of roles in the Storj ecosystem: client, node, and satellite. Satellites are cluster servers that connect clients and nodes. When the client needs to upload files, the satellite will help the client find the node with the fastest upload speed, and record the expenditure and income of the client and the node at the same time, but the existence of cluster servers reduces the degree of decentralization of Storj. Compared with Filecoin, Storj has the following advantages: 1. The hardware threshold is low. Storj does not require an AMD graphics card mining machine to mine, but only needs to meet the following requirements: 500G hard disk, 2TB of broadband traffic per month, uplink at least 5MB/S, and downlink at least 25MB/S. News | European Banking Association: Distributed Ledger Technology Can Have a Positive Impact on KYC Processes: According to a Finextra report, the European Banking Association EBA believes that distributed ledger technology (DLT) can have a positive impact on the "know your customer" (KYC) process and its data Management has a positive impact. José Vicente, chair of the EBA Cryptotechnologies working group, said that DLT-based data sharing within financial institutions has the potential to improve data integration. If each department has a shared unified view of KYC attributes, clients will no longer need to resubmit KYC documents for each additional service. DLT-based data sharing could even be extended to include multiple financial institutions. [2018/10/24] 2. Since it is benchmarked against Amazon S3, the upload and download speed of file data is relatively stable, which is more suitable for commercial use. And Storj is not vulnerable to DDOS attacks. The first-ranked warehouse article pointed out that even if individual nodes are attacked, the retrieval of user data will not be affected, unless more than 51 of the 80 nodes that store the user data are attacked at the same time, making the data impossible to retrieve, and also unable to repair. It is much more difficult than attacking a Filecoin miner node alone. 3. Storj retrieves and deletes files in a short time and at a low cost. Since Storj is built on the Ethereum chain, it is restricted by the status of the Ethereum network. At the same time, STORJ tokens and business are not closely integrated, which restricts its development to a certain extent. The comparison between Filecoin and Storj, in short, from the perspective of landing scenarios, Storj is more suitable for commercial use. In terms of income, the Filecoin token economic model is more sound, and miners can obtain greater income. Bluzelle Bluzelle is a Web3 decentralized database provider. At present, data storage has a lot of room for implementation. When we finish playing a game or listening to a song, the data will be temporarily saved in the database. What happens if the data is not saved? The game can only be played again, the song can only be played again, and the experience plummets. If game companies cooperate with Bluzelle, Bluzelle's decentralized data storage network can save users' game data in time, and network nodes are spread all over the world, so users can synchronize game data no matter where they live. If Bluzelle is combined with the privacy computing public chain, multimedia companies can provide users with matching services according to their media usage habits without infringing on users' privacy data. In addition to the database, Bluzelle also has advanced oracles. Bluzelle's oracle data is highly reliable, and data is captured every 5 minutes. When the price is abnormal, the oracle machine can also issue an alarm to prevent flash loan attacks. At present, Bluzelle has launched the main network and integrated Polkadot, becoming a project of Polkadot ecology. At present, Bluzelle has reached cooperation with Phala Network, StaFi, Cere Network, etc. in data storage. In the future, it is expected to cooperate with more Polkadot ecological projects and become an important Web3 database. Crust Network Crust Network is Polkadot's parachain designed to provide decentralized cloud storage services. The special design of Crust Network has two main points: MPoW (Meaningful Proof of Work) and GPoS (Proof of Secured Interest). MPoW effectively solves the reporting problem of node workload, and has four characteristics of transparency, fairness, efficiency and development. To put it simply, the storage mechanism is simple and transparent, the workload of miners is directly proportional to the reward, the storage space is efficiently utilized, and the development of TEE has unlimited potential. Under the GPoS consensus mechanism, the Crust Network ecosystem has produced four roles, namely validators, candidates, guarantors and users. The verifier is the node that packs and generates blocks in the network, maintains the entire blockchain network, needs to store assets as a guarantee, and needs to be online in real time, which is similar to the miner nodes of the Filecoin network. Candidates are nodes that compete to become verifiers but do not qualify for verification in the end. They also need to store assets as a guarantee and need to be online in real time. However, the role of the candidate is not fixed, and the candidate has the opportunity to become a validator. A guarantor is an account that provides guarantees for any one or more nodes in the network, and guarantee income can be obtained by providing guarantees for nodes. Users are the main body of storage needs, and purchase storage services by paying CRU and other Crust Network tokens to use network storage space. The Polkadot ecological project involves a wide range of fields. The cooperation between Substrate-based public chains can add new attributes to both parties. For example, the cooperation between Crust Network and Phala Network, Crust Network can store private data and help privacy protection.

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