Verifiable receipt b59c8a91 - zambo_universal result | Zambo

Verifiable receipt for a zambo_universal call on Zambo: {"status":"executed","primary_tool":"live_price","executed":true,"executed_tools":["live_price"],"result

Observed result

{"status":"executed","primary_tool":"live_price","executed":true,"executed_tools":["live_price"],"result":"OP · $0.1207 USD\n▼ 0.36% (24h) · Market cap: $277.84M\n\nLive price via CoinGecko · Thu, 08 Oct 2026 06:10:00 GMT","verify":{"status":"complete","message":"OP-USD price and source were returned by the live price provider."}}

Provenance for every timeline entry

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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Verification checks

Committed provenance claim

EXECUTED BY ZAMBO

provenance_class is bound to these bytes; issuer is not authenticated.

Receipt ID
b59c8a91-66d0-4537-81c8-409a6f5bd5d1
SHA-256 output hash
sha256:12df6cc41b27632a07baeeff3dd795344988113fb93a7c0625211bed2178193e
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
zambo_universal
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:45b3e8a029dc725aa944673c9b9e4ca14bcf33084a33a8849442907f4d1a2c80
Declared side effects
state_write
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9

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
sha256:119483a5283718aeceb25b99f7f042cc9c023e7e228e07d3f1e4e46b3cbd37f4
Byte length
102

Fetch exact evidence bytes

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

Neutral Nostr anchor

Event ID
69e1b353c10f6a7f971c4842dd22d3490fef116ce5e4b2466603425290908668
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":"2026-10-08T06:10:00.740Z","evidence_byte_length":102,"evidence_sha256":"sha256:119483a5283718aeceb25b99f7f042cc9c023e7e228e07d3f1e4e46b3cbd37f4","evidence_url":"https://zambo.dev/api/evidence/119483a5283718aeceb25b99f7f042cc9c023e7e228e07d3f1e4e46b3cbd37f4","output_sha256":"sha256:12df6cc41b27632a07baeeff3dd795344988113fb93a7c0625211bed2178193e","receipt_uuid":"b59c8a91-66d0-4537-81c8-409a6f5bd5d1","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

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HTML

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