Arweave

What Arweave is

Arweave is a network for permanent, decentralized information storage in an open ledger. Its stated uses include preserving important data and hosting decentralized web apps, and people can upload files or make a homepage on the permaweb. Transaction fees are set dynamically by the network, so its documentation advises checking the price endpoint close to submission. The protocol is based on HTTP and works with existing clients such as Axios, Fetch, and Guzzle. Listed client integrations cover Go, PHP, Scala, Java, C#, JavaScript, TypeScript, and NodeJS. Node software can be installed from pre-built binaries or built from source; documented roles include solo, coordinated, and pool mining, VDF server, and validator. The Yellow Paper describes content as timestamped and tamper-proof through the blockweave, with integrity checks using transaction data in block hashes and recall blocks. Stored data has a notable permanence caveat: once one or more miners store it, there is no guaranteed way to delete it. The policy advises against storing cleartext personal or confidential information. Wallets hold private keys, and lost key files cannot be recovered by wallet providers.