Verifiable receipt bb7a0e78 - 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 · $86,538.00 USD\n▲ 2.06% (24h) · Market cap: $1738.86B\n\nLive price via CoinGecko · Mon, 05 Oct 2026 00:46:07 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
bb7a0e78-f504-4027-a9cd-0a02a8f05092
SHA-256 output hash
sha256:d441180573b4365cf03d69faf200d8396048be7bd6ba866a34046f33bf006017
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:c95483b40892b2451e7a5b8c47eac668fea12e7cb189bceac6bfe32a19e7790b
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
sha256:90a55c85ab485849a16015229e2b7487c98049719aab96e0fc11a3e040952439
Byte length
97

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
e328945900e655cf29231fff125b6ed6e13c1c19c89be48cd7f31be2f8ea88c7
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":"2026-10-05T00:46:07.650Z","evidence_byte_length":97,"evidence_sha256":"sha256:90a55c85ab485849a16015229e2b7487c98049719aab96e0fc11a3e040952439","evidence_url":"https://zambo.dev/api/evidence/90a55c85ab485849a16015229e2b7487c98049719aab96e0fc11a3e040952439","output_sha256":"sha256:d441180573b4365cf03d69faf200d8396048be7bd6ba866a34046f33bf006017","receipt_uuid":"bb7a0e78-f504-4027-a9cd-0a02a8f05092","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

<a href="https://zambo.dev/run/bb7a0e78-f504-4027-a9cd-0a02a8f05092"><img src="https://zambo.dev/api/receipt/bb7a0e78-f504-4027-a9cd-0a02a8f05092/badge.svg" alt="Verifiable Zambo receipt"></a>

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