Verifiable receipt 909307bb - capability_search result | Zambo

Verifiable receipt for a capability_search call on Zambo: {"query":"workflow receipt","status":"execution_plan","tools":[],"execution_plan":[],"continuity":"For

Observed result

{"query":"workflow receipt","status":"execution_plan","tools":[],"execution_plan":[],"continuity":"For a multi-step job, call zambo_universal with the real request and one stable _session_id; reuse it with mode:'continue', then mode:'verify' before declaring completion.","note":"Links appear only where the confirmed capability requires a human web action, consent, payment, or visual administration."}

Check this receipt

This record shows the result and timestamp stored for the call. Recompute the SHA-256 commitment from the saved bytes in your browser; signatures and chain proofs are not checked.

Provenance for every timeline entry

EXECUTED BY ZAMBOZambo ran the tool call itself.
OBSERVED VIA GATEWAYA Zambo gateway observed request and response bytes from the named external executor. Zambo did not run that external action.
LOGGED BY AGENTAn agent or local hook reported the action. Zambo attests that the record is unchanged since logging, not that the action happened as described.

Private agent reasoning, built-in client actions, and direct calls to unrelated MCP servers are not included unless an agent or gateway reports them.

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

What is an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

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This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.

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Verification checks

SHA-256 commitment: Checked independently against the exact decoded bytes
Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
Chain: NOT CHECKED; no append-only chain proof is validated
Stored timestamp: 2026-10-09T22:28:15.665Z; external immutability is not checked

Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID: 909307bb-a007-4057-b30e-fc0f11550590
SHA-256 output hash: sha256:0b35174357d5e1f2559fc47eea673986c4c02ecc71349e3e47c7fb1c895c11ce
Canonical bytes: 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
Timestamp: 2026-10-09T22:28:15.665Z

Bound call context

Receipt schema: 0.4
Tool name: capability_search
Tool version: 4.0.0
Permission scope: public
Caller type: anonymous
Caller ID: sha256:c9bd2ac257eaa4ff5deaf66cd511d682d8ac592f7116f01d757b540ffcc97f94
Declared side effects: none
Side-effects schema: zambo-side-effects/1
Declaration hash: sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

This records what the server-side tool contract declared at call time. It does not independently verify that a downstream side effect happened.

Bound upstream evidence

Status: captured
Evidence SHA-256: sha256:a3e734eec4b1fa350678b94ced995b84e2a6a756e6d8d3fc5e5d40c3de8c2911
Byte length: 366

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID: d343435705030b863297cbb4546c18cb70601acabbd3b354ad77f0dd7dbcb9a5
Anchor status: partial
Public key: e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.damus.io · wss://nos.lol · wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-10-09T22:28:15.639Z","evidence_byte_length":366,"evidence_sha256":"sha256:a3e734eec4b1fa350678b94ced995b84e2a6a756e6d8d3fc5e5d40c3de8c2911","evidence_url":"https://zambo.dev/api/evidence/a3e734eec4b1fa350678b94ced995b84e2a6a756e6d8d3fc5e5d40c3de8c2911","output_sha256":"sha256:0b35174357d5e1f2559fc47eea673986c4c02ecc71349e3e47c7fb1c895c11ce","receipt_uuid":"909307bb-a007-4057-b30e-fc0f11550590","schema_version":"zambo-receipt-anchor/1"}

Anchor status "partial": Published to some configured relay targets; publication was not confirmed by every configured relay.

Check this hash yourself

Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. Signature and chain remain NOT CHECKED unless a real signature verifier or chain proof is supplied. There is no combined “verified” verdict. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

Embed this receipt

Markdown

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/909307bb-a007-4057-b30e-fc0f11550590/badge.svg)](https://zambo.dev/run/909307bb-a007-4057-b30e-fc0f11550590)

HTML

<a href="https://zambo.dev/run/909307bb-a007-4057-b30e-fc0f11550590"><img src="https://zambo.dev/api/receipt/909307bb-a007-4057-b30e-fc0f11550590/badge.svg" alt="Verifiable Zambo receipt"></a>

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