Arweave is a new blockchain protocol for data storage, based on proof of a new access consensus mechanism that creates true permanent storage of data for the first time.

The main problem Arweave has to solve is how to store data reliably for a long time. Their vision was to become a new Library of Alexandria, an ancient library designed to be a repository of the world's knowledge. When Arweave set out to solve the problem of long-term data storage, they innovated on existing blockchain technology and developed a unique incentive system that allows people to store data permanently.

In analyzing the current state of data on the Internet, the founders of Arweave said the current Internet is not suitable for long-term storage of data. Because the current Internet is so mobile, more than 95 percent of information is lost every 20 years.

Arweave is implemented using a blockchain, where files are stored on each block. In fact, Arweave's data structure is more like a web than a chain. Arweave has devised a new approach to consensus called Proof of Access. The idea is that each new block must validate a previous block. This previous block number is randomly generated, and only nodes with random blocks can POW blocks. In this case, each node must save enough blocks to have a chance to participate in POW blocks and get paid. The cost of storage, which increases exponentially with data, makes it impractical for every node to hold all blocks. The existence of random blocks can adjust the amount of data stored by each node to achieve balanced distribution of data and truly realize decentralized storage.

Arweave has devised a new form of consensus called Proof of Access. The idea is that each new block must validate a previous block. This previous block number is randomly generated, and only nodes with random blocks can POW blocks. In this case, each node must save enough blocks to have a chance to participate in POW blocks and get paid. Because of the cost of storage, as data grows exponentially, it is not possible for every node to hold all blocks. The existence of random blocks can adjust the amount of data stored in each node to achieve balanced distribution of data. Implement truly decentralized storage. Transactions on the Arweaver blockchain are the transactions read and written to the file and the file itself. Another innovation is that every time a new block is published, it only gives a hash value like the block header and a list of wallet addresses where the transaction took place. Then each node uses this list to verify the transaction from its own transaction pool. If it matches the hash value, the verification is successful. It can write blocks to its own local database. Each node can share files with its neighbors and rate their performance. The more reliable files you get from neighboring nodes, the higher the score. In this way, the sharing of documents is facilitated by economic means. In addition, Arweave has developed a REST API for building applications that require file storage.

Permanent personal file cloud storage space website database enterprise shared storage space code and file database censorship resistant encyclopedia knowledge base

Arweave's top layer of the web is called the Permaweb. The permanent Web may seem like the web today, but everything, from images to complete Web applications, is stored permanently, can be retrieved quickly, and 404 never happens.

Arweave has the following four basic technical points. They are related, but can be explained roughly separately as follows. Blockweave: Not every node needs to store all blocks. However, each new block must validate a previous random block, so only nodes with random blocks can POW blocks. This greatly reduces the workload of POW and achieves the purpose of energy saving. And minimizes data waste. Proof of Access: Proof of Access is a new consensus approach. Each new block must validate a previous block. This previous block number is randomly generated, and only nodes with random blocks can POW blocks. In this case, each node must save enough blocks to have a chance to participate in POW blocks and get paid. Consensus mechanism is a new initiative, which is a necessary condition to realize decentralized storage. Optimized POW reduces power waste. It's also a solution to a mainstream pain point. Wildfire: At the P2P network level, Arweave has introduced a method called Wildfire that allows each node to share data with its neighbours while simultaneously rating their performance. The more reliable data you get from neighboring nodes, the higher the score. The node will automatically take care of the bandwidth and server stability. Use economic means to promote the efficiency of data sharing. Blockshadow: Blockshadow is a message sent from each block producing node to the other nodes. It contains only a hash like a block header and a list of wallets where all transactions occur, not the transaction files in the block. The node can reconstruct the entire block based on this Blockshadow and the transaction files in its own transaction pool. Accelerate consensus and expand throughput.

The Arweave agreement provides permanent storage as a service. It does this not by creating contracts between users and storage providers, but by creating crypto economic incentives for miners to copy as much data as possible, permanent data storage being a completely new service that Amazon, Google, and others can't offer. In November 2019, The Arweave network launched AR, a native token that can be used as an encrypted message to enter into the system and as a reward to motivate miners. Its Genesis block produced 55,000,000 AR and began releasing on June 8, 2018, with another 11,000,000 AR (an additional 20% of genesis Block production) gradually flowing into the market as a block reward, and circulating AR is being stored in wallets or endowment pools. To encourage mining, each block generation will reward a portion of AR, and adjust the difficulty to keep the block interval at 5 minutes to prevent inflation; In addition, the token reward for each block generated is reduced, i.e., 10% of the Tokens in the Genesis block are issued in the first year and halved each year thereafter.

Filecoin vs. Arweave Both Filecoin and Arweave enable data to be stored in a decentralized, untrusted, censor-resistant manner. Both projects use blockchain-based solutions. And both networks can be used to store data for long periods of time, either as a reference or as web hosting. At first glance, they look very similar. So instead of evaluating Filecoin and Arweave's respective blockchain networks, a better place to start is how they plan to offer storage services to end users. Arweave, on the other hand, has introduced a new model to the market: permanent storage. This was not possible before encryption. With permanent storage, users pay a one-time upfront fee and the network can store data forever. Permanent storage can either serve the addressable cloud storage market or create a whole new market (which we'll cover later). The Arweave agreement does this by using crypto economic game theory and creating an endowment fund to compensate miners, ensuring data availability, reliability and durability.

The Arweave project connects people who have spare hard drive space with those who need permanent data storage. Arweave(AR Coin) aims to provide a sustainable and permanent decentralized ledger of data, knowledge and history, while creating mechanisms to incentivize the efficient transfer of data. In addition, thanks to the Arweave token (AR), permanent network, BlockWEAVE and Random Access Concise Proof (SPoRA) consensus model, the Arweave project enables unmatched mediation-free data replication.

Arweave is a blockchain-based file storage protocol that is unique among decentralized storage projects in that it can store files permanently for a one-time fee. Previously, using access proof OF POA as an incentive for miners to store history permanently, Arweave completed a new competitive Consensus SPoRA upgrade on February 25, 2021. The number of data copies stored on the network can be increased to 100-1000 times, greatly releasing data storage potential. In addition, the profit-sharing token mechanism is adopted. Applications built on the protocol can issue tokens, and users will send tips charged by Arweave's native token AR to specific PST token holders through interaction with the application. At present, more than 250 applications have been created based on Arweave protocol. Arweave was launched in August 2017 and has since received more than $13 million in funding from A16Z, USV, Coinbase and others. Huobi was launched in September 2020.