Decreed by Cognito Agora

The agentic web already has receipts. Decreed makes them proof.

When an AI agent books, cancels or pays on a website, the site and the person both need to know what actually happened. A Decreed receipt is signed, logged in an append-only log, and checkable by anyone, offline, right here in your browser. Nothing you check is uploaded.

Demo: receipts here are signed by a demo notary. The open-source verifier is the same one Decreed ships.

Verify a receipt

Keys you trust, and the receipt before it

The verifier loads when you first verify. Nothing is uploaded.

Result

Paste a receipt or try the sample, then press Verify.

Receipt timeline

Drop a proof bundle (the decreed-receipts.json file from "Download proof"), or choose it. Every receipt in it is checked here, oldest first, each with the one before it, against the trust anchors above.

    The log

    Every receipt the notary signs goes into an append-only RFC 6962 log, whose state it signs as a checkpoint. This checks that signature in your browser and whether the receipt above is in it.

    Spec checks

    Check what any agentic website publishes against the open agentic web spec (§6), from this browser. Paste a site or network URL, or check the demo business.

    Ask Decreed

    Ask what a verdict means, whether a receipt is in the log, or to fingerprint another agent site. The assistant runs in your browser; it never calls a receipt verified unless the verifier said VALID.

    Connecting the assistant…

    For agentic websites

    Load Decreed's agents as a peer from your own open agentic website, after your visitor agrees:

    Add signed receipts to your own site's actions and consent decisions with the open-source decreed-receipts plug-in, in about ten lines. Everything here is Apache-2.0.