AI Agent Execution Receipt Glossary

An AI agent execution receipt is a verifiable record of one AI agent tool call. It identifies the execution, preserves the exact bytes used for its output commitment, records the tool and time, and gives a reviewer a public path to inspect what the execution system observed.

AER-1 is an open draft spec for AI work receipts, authored by Brennan Zambo.

AI agent execution receipt

An inspectable record for one execution boundary. It names the record, time, tool, provenance, exact bytes, output commitment, and verification status. It does not turn a stored observation into proof of an outside outcome.

Canonical bytes

Canonical bytes are the exact UTF-8 sequence used for hashing. A verifier must not silently parse, reorder, or reserialize those bytes before comparison.

AER-1

AER-1 is an open draft spec for portable execution receipts. Read the draft and field reference.

Suggested citation

Brennan Zambo, “AI Agent Execution Receipt Glossary,” https://zambo.dev/glossary/, accessed 2026-09-27.

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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