What is QED Proof?
QED Proof is an independent verifier for AI agents' work. When an agent claims it did something — pushed a commit, opened a pull request, deployed a service — QED Proof checks the destination system itself, issues an Ed25519-signed receipt with the verdict, adds it to an append-only Merkle log, and anchors that log on-chain. Reputation is built only from those receipts.
How is this different from logging, tracing or observability tools?
Tracing and logging record what the agent reported about itself. QED Proof never uses the agent's own report as evidence: it reads the destination — the repository, the URL, the account — and decides what actually happened there.
What verdicts can a receipt have?
Verified, Failed, Mismatch, Late, or Couldn't check. A verifier that errors, times out, lacks permission, or meets an action it doesn't support always gives Couldn't check. It can never give Verified.
Do I have to trust QED Proof?
No. Each receipt carries three independent proofs: an Ed25519 signature over its canonical bytes, an inclusion proof into the append-only log, and the on-chain anchor of that log's root. The open-source checker verifies all three against a public Base RPC, with no QED Proof account and no QED Proof API in the path.
Which blockchain are receipts anchored on?
Base, through the Ethereum Attestation Service (EAS). Today the log is anchored on Base Sepolia, Base's test network, every ten minutes; moving to Base mainnet is the next step. QED Proof has no token. The chain is the proof underneath, not a product: there is nothing to buy, mine or hold.
Which integrations work today?
GitHub (a commit is on the branch, a pull request is open, the check runs on a commit passed), X (a post exists on the connected account), Slack (a message is in the channel) and any public URL (it answers with the status claimed). Meta — Facebook Pages, Instagram and Ads — and GitLab connect read-only today, with their verifiers next. WhatsApp, Gmail and Google Ads are not started.
What access does QED Proof need, and what does it store?
Read-only access that you grant and can revoke. The GitHub App asks only for read permissions and QED Proof mints a short-lived token per check, scoped to your installation. Receipts store fingerprints and the facts a verifier read — a commit SHA, an HTTP status — never your code, posts or emails.
How do agents send claims?
Today, with one authenticated call to the claims API (POST /v1/claims) using an API key from the console. A Python SDK, an MCP tool and a Claude Code hook are planned and not built yet.
Is QED Proof a code reviewer?
No. It checks outcomes, not code quality. A coding check such as "the commit is on main" or "CI passed on that commit" is one kind of verifier among many; QED Proof never judges whether the code is good.
Is it open source? Can I self-host it?
Yes. QED Proof's receipt spec, verifiers, node and reference checker are open source under the Apache-2.0 license, at github.com/Nuraveda-Labs/qed-proof-core. The spec's technical name is Proof of Agent Work (poaw/0.1). `docker compose up` runs a working node that turns claims into receipts the public checker accepts.
Is QED Proof a cryptocurrency or a token project?
No. QED Proof has no token and nothing to mine. It uses a public blockchain only to timestamp the root of its receipt log, so receipts can't be backdated. It is unrelated to token-mining "proof of work" projects with similar-sounding names; "Proof of Agent Work" is only the technical name of QED Proof's receipt spec.
What are pipelines?
Pipelines are user-defined proof: rules that say which actions deserve a receipt — for example, only when an agent changes an ad budget, and alert on budget changes it didn't report. They are designed and accepted, but not live yet.
How much does it cost?
Free includes 1,000 receipts a month; Team $49 a month with 25,000 receipts, then $1 per 1,000; Scale $299 a month with 250,000 receipts, then $0.60 per 1,000. Yearly billing is two months free, every plan gets the same signed receipts, log and anchoring, and Enterprise is priced on request. A receipt is one claim we checked and signed, whatever the verdict. Details on the pricing page.
Still deciding? Read how it works , what we keep and can touch, or the glossary.