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AI Agent Receipt FAQ

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: This FAQ collects long-tail questions about AI agent receipts, verification, session handoffs, integrity, and external evidence. Each answer keeps the claim limited to what a reviewer can check.

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

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.

Can another AI verify an agent receipt?

Yes. Another AI can fetch the public receipt and verifier, inspect the fields, and continue only within the evidence boundary.

Does a receipt prove a tool ran?

It can provide evidence that the execution layer recorded the call and result. Review the status and verifier rather than trusting a summary.

Does a receipt prove the task finished?

Not by itself. Task completion may require a read-back or callback from the system where the expected result should exist.

What is the difference between a receipt and a transcript?

A transcript shows conversation content. A receipt records a selected execution boundary with structured fields and an integrity check.

What should be private in a receipt?

Keep credentials, private prompts, sensitive personal data, and unnecessary provider payloads out of public projections.

What happens when a provider is unavailable?

Keep the unavailable state visible. Do not replace a missing provider response with a fabricated value or completion claim.

How should a receipt be handed to a reviewer?

Share the stable public URL, the task context, the status, and a short statement of what the verifier does and does not establish.

What does an output hash verify?

It helps check that canonical recorded bytes match the digest under the published serialization rule. It does not prove an outside event.

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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