Verifiable receipt 335787f8 - 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":"BTC · $85,844.00 USD\n▲ 1.35% (24h) · Market cap: $1724.41B\n\nLive price via CoinGecko · Sun, 04 Oct 2026 21:27:50 GMT","verify":{"status":"complete","message":"BTC-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?

An AI agent completed a tool call through Zambo, and this page records the result. The SHA-256 hash below fingerprints exactly what the agent produced. The timestamp shows when it ran. The Nostr anchor posts that fingerprint to public relays, so the record exists outside Zambo too. Check the hash yourself.

What is an execution receipt?

An execution receipt is the public record of one completed AI agent tool call. Read the canonical definition of an AI agent execution receipt.

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Verification checks

Proof of observed execution

EXECUTED BY ZAMBO

Receipt ID
335787f8-45ad-431e-a254-bed81a221272
SHA-256 output hash
sha256:960e009de8fbc581c49d47e075d24f4d68a3366c52fd860267d2556c14532661
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.3
Tool name
zambo_universal
Tool version
4.0.0
Permission scope
public
Caller type
anonymous
Caller ID
sha256:684cf1ef515a4bbcc7385f4e9aaa254a77e8b976d0f3418b4c795139d5e03bc8
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
sha256:3bb49a006a0deed830e1c7e0fc9864af96971a95dd7186a7471ba7026fb8227d
Byte length
96

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Upstream provenance

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

Neutral Nostr anchor

Event ID
a54d20eb55a0ff4b6e0143528682a9ce4a81cd49d4768c09f28b4723ed335aa1
Anchor status
published
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":"2026-10-04T21:27:50.532Z","evidence_byte_length":96,"evidence_sha256":"sha256:3bb49a006a0deed830e1c7e0fc9864af96971a95dd7186a7471ba7026fb8227d","evidence_url":"https://zambo.dev/api/evidence/3bb49a006a0deed830e1c7e0fc9864af96971a95dd7186a7471ba7026fb8227d","output_sha256":"sha256:960e009de8fbc581c49d47e075d24f4d68a3366c52fd860267d2556c14532661","receipt_uuid":"335787f8-45ad-431e-a254-bed81a221272","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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

<a href="https://zambo.dev/run/335787f8-45ad-431e-a254-bed81a221272"><img src="https://zambo.dev/api/receipt/335787f8-45ad-431e-a254-bed81a221272/badge.svg" alt="Verifiable Zambo receipt"></a>

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