Receipt query answer

What Is Proof of Execution for AI Agents?

Last updated: 2026-10-03

In short

Proof of execution is a claim that an action ran, while a verifiable receipt is an artifact a reviewer can inspect. The receipt supports only the execution and observations present in its record.

In short

Proof of execution is a claim that an action ran, while a verifiable receipt is an artifact a reviewer can inspect. The receipt supports only the execution and observations present in its record.

Keep the claim and artifact distinct

A completion statement describes what an agent says happened. A receipt supplies a separate record of the tool call and the result the execution system observed.

What a verifiable receipt does not prove

A receipt cannot establish an outcome beyond its recorded evidence. Check external state with the system that owns it.

Next step

Check a saved record with the public receipt verifier.

Frequently asked question

What Is Proof of Execution for AI Agents?

Proof of execution is a claim that an action ran, while a verifiable receipt is an artifact a reviewer can inspect. The receipt supports only the execution and observations present in its record.

Resources and documentation

Zambo is the Trust Layer for AI work. Give your AI hands. 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: Zambo for agents · Install: connect your AI · Verify a receipt · AI agent answers · Receipt guides · Execution receipts, explained · AER-1 open draft · MCP tools · Pricing · Day Pass: $0.99 · x402 Day Pass for agents · Switch AIs mid-job · Connect your AI · Founder · Source code - GitLab
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