What Is Arweave (AR)? The Permanent Data Storage Network

The Arweave network is a blockchain built to store data permanently for a single upfront payment, and AR is the coin that pays for it. Its own site calls it "like Bitcoin, but for data". You pay once when you upload a file, a web page or an app, and miners earn AR for keeping copies of it.

Arweave pays for that storage over the years from a pot of coins called the endowment, which upload fees fill. It held about 382,000 AR at the early-November close, up about 29% since the end of 2025. In the last block before that close, new coins and the miner's share of fees fell short of what the block owed for storage, so the endowment covered the gap.

What Does Arweave Do?

Arweave keeps data online for good after one payment, with no monthly bill and no server of your own to run.

Its site names the range of uses, from "the preservation of humanity's most important data" to "the hosting of truly decentralized and provably neutral web apps." In plain terms, that's records meant to outlast whoever made them and web apps that don't depend on one company's servers.

Developers build on what Arweave calls the permaweb, a set of tools that sits on top of the chain. Arweave's build pagedescribes it as "a full stack for building decentralized web applications on Arweave." That stack runs from hosting an app's interface to database queries and domain names.

Storage networks belong to a wider group crypto calls DePIN, or decentralized physical infrastructure, where people supply real hardware and earn tokens for it. On Arweave the hardware is disk space, and miners earn AR for filling it with the network's data.

How Does Arweave Work?

Arweave's miners store copies of the network's data, which Arweave calls the weave, and compete to add a new block about every two minutes. Many blockchains keep big files off-chain, outside the ledger, and record only a pointer to them. Arweave stores the file itself as part of the weave.

Arweave's mining guide explains how a miner wins a block. It hashes chunks of the data it stores, read from random spots in the weave. Each 3.6-terabyte slice of the weave it holds, called a partition, gives it more hashes to try. A hash that clears the network's difficulty lets that miner build the next block.

You pay your upload fee in AR, and the protocol splits it in two. Arweave's pricing code gives the block's miner 1/21 of every fee and sends the other 20/21 into the storage endowment.

Each block then pays its miner, starting with newly minted AR plus that 1/21 slice of the block's fees. The protocol also prices what keeping 20 copies of the whole weave costs for that block's stretch of time. When new coins and fees fall short of that bill, the endowment tops up the difference.

Miners don't get the reward straight away, though. Arweave holds it back for about 30 days, a delay its guide says discourages miners from signing the same block twice.

Who Pays for Arweave's Storage?

You pay once at upload, and the endowment turns that single payment into miner pay for years to come.

The pot works like a savings account for the network. Upload fees pay in, and blocks draw on it only when new coins and fee shares can't cover the storage bill.

From the last block of 2025 to the early-November close, it grew by about 87,000 AR, so more flowed in than blocks drew out. At CoinMarketCap's closing price of about $3.20, the whole endowment came to about $1.2 million.

The miner-pay rows come from one block, the last before the close. Each block carries its own fees and storage bill, so those rows show how a top-up works in one case.

What the year shows matters more. New AR shrinks every year, and the pot still filled faster than it drained. That balance is the real test of Arweave's promise of permanence, because the endowment has to carry more of miners' pay as issuance fades.

How Much Does Arweave Cost?

Storing 1 GiB, a gibibyte or about 1.07 billion bytes, cost about 14.9 AR at the early-November close. At the same CoinMarketCap price that came to roughly $47.50, and you pay it once.

The price has climbed fast in AR terms. At the end of 2025 the same gibibyte cost about 3.44 AR, around $11.80 at that day's close, so the AR price of storage rose about 4.3-fold over those ten months. The dollar cost rose about fourfold as well, because AR's own price ended those months slightly lower.

Arweave resets that price every 50 blocks, using what recent blocks paid miners and how much data their mining suggests they store.

The fee buys storage for ever on one assumption, that storing data gets about 0.5% cheaper every year. Under that assumption, paying for every future year adds up to about 200 times the first year's cost. The protocol charges that for 20 copies, plus 5% for the miner.

If a block ever needs more than the endowment holds, the code mints extra AR to pay the miner and doubles the price of new uploads. That switch had never tripped by early November, when the fee multiplier still stood at one.

On most chains a network fee, often called gas, pays for processing a transaction. Arweave's fee also pays for the years of storage that follow.

What Is AO on Arweave?

AO is a shared computer built on top of Arweave, where programs run side by side and their messages end up in Arweave's storage.

Its repository describes "the actor oriented machine that emerges from the network of nodes that adhere to its core data protocol, running on the Arweave network". Actor oriented means the machine is a crowd of separate programs called processes, which work by sending each other messages.

The repository says the system is unified by "the eventual settlement of all messages" onto Arweave's "decentralized data layer." So AO's activity adds to the data Arweave stores.

For a developer, an AO process behaves much like a smart contract, code that runs by its own rules once it's launched. The repository says these processes "are not hosted on any specific servers, or under the control of any one individual or group."

How to Buy AR Safely

AR trades on Phemex as the AR/USDT spot pair. Its AR/USDT perpetual futures contract is no longer listed, following a delisting notice dated 7 August 2026, so there's no live AR perpetual on Phemex.

Phemex's futures market still lists other coins. Futures use leverage, and a leveraged position is closed automatically if losses reach its margin.

1. Sign in to your Phemex account and fund it with USDT.

2. Open the AR/USDT market on Phemex Spot and confirm the pair before you trade.

3. Use a limit order to set the most you'll pay, or a market order to buy at the best price on the book.

4. Before you withdraw, check which network Phemex lists for AR and send only to a wallet on that same network.

5. To hold AR on Arweave's own chain, use a non-custodial wallet, one where you keep the keys yourself. Arweave's docs walk you through the Arweave.app web wallet, a community-built, open-source project.

6. Send a small test amount first, and keep your wallet backup offline.

For where AR's price could head, Phemex has a separate Arweave forecast.

Frequently Asked Questions

What blockchain is Arweave on?

Arweave runs on its own blockchain, and AR is that chain's native coin. The chain made its first block in June 2018 with 55 million AR, and mining adds the rest toward a scheduled 66 million.

How do you mine Arweave?

Run Arweave's node software and fill your disks with copies of the network's data. Each 3.6 TB partition you store gives your miner more chances at the next block, so more storage means more tries. Rewards arrive about 30 days after the block you win.

Is Arweave storage really permanent?

Arweave prices it as permanent. Your fee covers 20 copies for ever if storage gets about 0.5% cheaper each year. Data lasts while miners keep copies, and Arweave's mining docs tell them to run a content policy against material "that may be illegal in your country".

Bottom Line

Arweave's permanence is a financial promise as much as a technical one. It prices your one fee on the bet that storage keeps getting cheaper, and the endowment is the reserve that carries miners when new AR and fees run short.

With nearly every AR already issued, that reserve and the flow of new uploads will matter more each year. If you're judging the network, watch the endowment's balance before the coin's price.

Disclaimer: This article is for informational purposes only and is not financial advice. Cryptocurrency trading involves substantial risk. Always do your own research before making investment decisions.