Own it.
AI that runs on computers people own, not in one company’s data center. No landlord. No subscription.
- +15 nodes
- +5 continents
- +30K TPS
Own your AI.
AI is becoming the most powerful tool on earth, and a handful of companies own it. Arc gives it back to the people. We own the AI. We own the network. We earn from running it on our own devices.
Seven arches · Two thousand years
What made the West great? People owned their tools.
Seven turning points, from Rome to today. Scroll through the arches.
Public worksThe aqueduct · Rome · 1st century AD
Every stone carries the load.
Roman engineers built arches that still stand two thousand years later. No single stone holds an arch up alone. Rome used arches to carry fresh water across valleys to public fountains in the city. Anyone could drink from them.
We will own the rails AI runs on.Arc splits one AI model across many computers. Yours can carry part of the load.
Ideas set freeThe printing press · Germany · Around 1440
Knowledge in every hand.
Before the printing press, books were copied by hand and owned by very few. Johannes Gutenberg’s movable type made them far cheaper and far more plentiful. Within a lifetime, ideas that no one could lock away were spreading across Europe.
We will own the code it’s made of.Arc’s code is public. Anyone can read it, run it and check it.
Steam powerThe steam engine · Britain · 1769
Who owns the machines?
In 1769, James Watt patented his improved steam engine. Machines began to multiply every worker’s strength. The Industrial Revolution made the world richer than ever before. The gains went first to the people who owned the engines. Most other people rented out their time.
We will own the machines that do the work.Arc is built to pay the people whose computers do the work.
Their own wingsThe airplane · Kill Devil Hills, North Carolina · 1903
Built in a bicycle shop.
The Wright brothers ran a bicycle shop in Dayton, Ohio. They paid for their flying machine with the shop’s profits and built it there, engine and all. When the textbook numbers for wings proved wrong, they built a wind tunnel and checked for themselves. On December 17, 1903, it flew.
We will own what we build.On Arc, the network is made of computers people own, and it is built to pay the ones that run the AI.
Home computingThe home computer · United States · 1977
Power on every desk.
In 1977, the first mass-market home computers went on sale, ready to use. Later, the open web linked them together. For a while, the most powerful tools on earth belonged to the people who used them.
We will own the computers it runs on.Your computer can run an Arc node today, and Arc’s AI engine is built to give it the same answer as a data center.
Proof, not trustBitcoin · The internet · 2009
A ledger no one owns.
In 2009, someone calling themselves Satoshi Nakamoto switched on Bitcoin. Soon thousands of computers were keeping one shared ledger together. No bank was in charge. On the ledger’s very first page, Satoshi copied a newspaper headline about bank bailouts.
We will own the ledger it answers to.On Arc, one shared record of the AI work is kept by the people who run it.
AI for rentAI · The cloud · Today
The fence goes up.
The most important tool ever built is being fenced off. You rent it by the month. It runs on someone else’s computers, under someone else’s rules. You can’t see inside it, and you can’t check its answers.
You are trusting a company with your future.
We will own our AI.Arc is built the other way: AI that runs on computers people own, with answers anyone can check.
The choice in front of us
Don’t rent your AI. Own it.
A fence keeps people out. An arch lets them through.
Rented AI
What most AI is today
- Runs on a company’s computers
- They change the rules whenever they like
- You can’t check an answer
- You pay every month
- The profit goes to the landlord
Owned AI
What Arc is built for
- Runs on computers people own
- The rules are written in public code
- Anyone can check an answer
- Built to pay the people who do the work
- No landlord
Run a node
Run Arc on your own computer.
The Arc Node app runs a node without a terminal, and it updates itself each time a new version ships. Arc is built to pay node runners in $ARC for the AI work their computers do.
Already hold $ARC? Lock it for participation rewards, subject to the rewards terms of service.
What Arc does for you
AI that answers to you.
Check it.
Arc is built so every computer gets the exact same answer. That means anyone can re-run the work and compare fingerprints. A receipt for every answer.
Built to pay you.
Your computer does the work, and Arc is built to pay you for it.
Keep it safe.
Arc’s digital signatures prove who sent what. They are designed to stay secure, even after quantum computers arrive.
And it is fast.
30,000+
transactions per second
Built to run a full-size AI model across many computers.
Arc, in plain words
How Arc works.
Your computer runs part of an AI model, alongside computers owned by people everywhere. Arc keeps the record: which model ran, what it was asked, and a fingerprint of its answer. It is built to pay the people whose computers did the work. All of that only works if every computer gets exactly the same answer, so that is where Arc started.
Four ideas. Each one is built on the one before.
1The same answer
Same question. Same answer. Any computer.
Most AI does its math with decimals that get rounded along the way. Different chips add the numbers in different orders, so the rounding comes out differently. The same AI can then give slightly different answers on different computers. When two computers can’t agree, nobody can check anybody.
Arc rebuilt the engine to do its math with whole numbers. Whole numbers add up the same way in any order, on any chip.
For engineers
Deterministic integer (I8/I16) inference. A committed known-answer test produces the same token, logit, hidden-state and output hashes on Apple arm64 and x86_64.
GitHub · Inference determinismTry it. Your browser is doing this math right now.
Decimals, rounded as they go
Whole numbers
2Anyone can check
Proof is built in.
When every computer gets the same answer, checking an AI is simple. Run it again and compare fingerprints. A fingerprint is a short code calculated from the entire result. Change one letter and the fingerprint changes completely.
So you don’t have to take anyone’s word for it. You compare.
For engineers
Validators recompute and compare BLAKE3 commitments. A worker’s result is rejected unless an authenticated quorum of replicas recomputes every layer range and token position.
GitHub · The claimLaptop
Server
Validator
Illustration. Your browser fingerprints just the text. Arc fingerprints the model’s whole computation.
3Many computers
One model, carried by many.
A large AI model is a tall stack of layers. Arc splits the stack into sections and gives each section to several computers. Your question travels through them the way water crossed a Roman aqueduct, arch by arch.
Each computer checks what it received before adding its part. If one drops out, another holding the same section takes over.
For engineers
Sharded inference by layer range, with three replicas per range. Each shard verifies the previous shard’s BLAKE3 digest before computing. Latency-aware replica selection. Prefill is pipelined across shards; decoding is sequential per token.
GitHub · How the sharding works4Paid for proof
Built to pay only for proven work.
Every result is proven before anyone is paid. No proof, no payment.
For engineers
Community reward settlement (transaction 0x25) requires exact-model assignment, independent verification, and approvals from five of six active validators before a mined receipt.
GitHub · ArchitectureWhat checking can and can’t do
An AI can still be wrong. Checking doesn’t make a model wise. It is built to prove which model answered, and that nobody swapped the model, cut the answer short, or changed it on the way to you. A subscription can’t give you that.
Built for the quantum age
Quantum computers are expected to break many of today’s digital signatures. Arc’s code already includes signatures designed to resist them. In Arc’s own test on an Apple computer, one of these new signatures, Falcon-512, was quicker to check than the older one it replaces.
For engineers
Falcon-512 and ML-DSA-65 transaction verification alongside Ed25519, BLS12-381 and secp256k1, plus a falcon512_verify precompile.
GitHub · Why this doesn’t exist anywhere elseOpen to builders
Developers can write apps for Arc in Solidity, the language of Ethereum apps, or in Rust, C or Go.
For engineers
revm EVM interpreter and Wasmer Wasm runtime, ETH JSON-RPC, and Python and TypeScript SDKs.
GitHub · ArchitectureFor builders
The blueprint.
Arc is a Layer 1 network written in Rust, from the network layer down to the integer inference engine. Here is the structure, floor by floor. Every piece is in the repository.
License. Source-available under BUSL-1.1, converting to Apache 2.0 on March 25, 2030. Free for research, personal projects, anything built on Arc, and running the network. Read the terms
Paper. On the Foundations of Trustworthy Artificial Intelligence. Read the paper
- IWe will own the rails AI runs on.
- IIWe will own the code it’s made of.
- IIIWe will own the machines that do the work.
- IVWe will own what we build.
- VWe will own the computers it runs on.
- VIWe will own the ledger it answers to.
- VIIWe will own our AI.
The next industrial revolution
Whoever owns the intelligence wins.
In the last revolution, a few people owned the engines. Most people rented out their hours. This time the machine can belong to all of us. Arc is built so it does.
Own your AI.
Don’t trust us. Check for yourself.
Arc’s code is public. Read it on GitHub, and follow $ARC on DEXTools.
AI is not a subscription.
Join the community
Find your people.
Build it with us
Join Arc.
Join the team, partner with Arc, run a node or build on Arc. Believe AI should belong to the people who use it? Tell us who you are and what you want to build.
Or email us at contact@arc.ai