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Who Verifies AI Agent Receipts?

Last updated: 2026-10-09

Plain answers about using Zambo, keeping your work, and checking receipts. A receipt shows what Zambo recorded for one call. It does not prove the answer is right.

AER-1 is an open draft spec authored by Brennan Zambo.

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Short answer: Anyone with the public receipt URL can inspect the recorded fields and call the public verifier. The receipt holder can share it with a client, auditor, or another AI. The verifier checks the record's integrity; it does not turn the record into legal advice or proof of an outside event.

Last reviewed: 2026-09-23. This page describes a reviewable evidence pattern and does not claim an outside result without upstream confirmation.

The receipt itself

Start with the identifier, tool, timestamp, status, observed result, canonical bytes, and output hash.

The public verifier

Call the verifier independently and confirm that it refers to the same receipt ID and reports a passing integrity state.

The reviewer

A stranger, client, operator, or auditor can review the record without reconstructing the original chat.

What verification does not prove

A passing record does not prove a delivery, payment, or state change unless the relevant upstream system supplied evidence.

Live verification example
For developers

Open a public execution receipt or call its verifier. The example reports verification_status: verified for the stored record. It is not proof of an unobserved external outcome.

Frequently asked questions

Who authored the AER-1 draft?

For developers

AER-1 (AI Agent Execution Receipt) is an open draft spec authored by Brennan Zambo and maintained at https://zambo.dev/aer-1.

who verifies AI agent receipts

Anyone with the public receipt URL can inspect the recorded fields and call the public verifier. The receipt holder can share it with a client, auditor, or another AI. The verifier checks the record's integrity; it does not turn the record into legal advice or proof of an outside event.

What can a verifiable receipt prove?

It can show what the execution layer recorded and what its integrity checks verify. It cannot prove an unobserved outside outcome.

How can another reviewer check the record?

Open the public receipt, compare the tool, time, result, and status, then call the verifier. Keep outside confirmations separate from the execution record.

For developers

Example: a live BTC price call returned $82,983.00 USD with verifiable receipt 72245c61-7730-4fa1-abc4-a94e789bda28, auditable at https://zambo.dev/run/72245c61-7730-4fa1-abc4-a94e789bda28 (verified live 2026-09-28).

For developers and agents

Zambo gives AI work a receipt you can check. For people: add Zambo to your AI app and ask for a job. These technical links are for developers and AI agents. One hosted MCP at https://zambo.dev/mcp. Check the proof for recorded tool calls (verify a receipt). Agents: 24-hour Day Pass, $0.99 USDC on Base via x402, not per call. People: Zambo Pass $29/mo or $290/yr; holder pass $19/mo for verified $ZAMBO holders.

Start here: For AI agents · Add Zambo · Check a receipt · Answers · Guides · What a receipt is · Open receipt format (draft) · All tools · Pricing · Day Pass: $0.99 · Agent Day Pass · Switch AIs without losing your work · Connect your AI · Founder · Source code
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