Verifiable receipt a0a9e22c - 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

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.

Observed result

{"status":"executed","primary_tool":"live_price","executed":true,"executed_tools":["live_price"],"result":"BTC · $84,383.00 USD\n▼ 2.05% (24h) · Market cap: $1695.18B\n\nLive price via CoinGecko · Thu, 24 Sep 2026 00:02:30 GMT","verify":{"status":"complete","message":"BTC-USD price and source were returned by the live price provider."}}

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Verification checks

Proof of observed execution

EXECUTED BY ZAMBO

Receipt ID
a0a9e22c-ca60-4425-86e9-109fddf8610e
SHA-256 output hash
sha256:d64173a50a563bdf772e703e6a70f84063b194806eb0cd030bf878add7929460
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
sha256:364ce74c70699ff46d18f2e7a9cc5f912857f1d9eb27abf0ce7aa0fa35f8aa6e
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:af3bbedbccf16e313f161446345dbbb7c4c8f1fca4b8b9242d2dcd4ae43dd673
Byte length
95

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
5236acfa7992f6e73c101846e9129dfd4e5b4a7a52711c8b88bb06e744d96b86
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":"2026-09-24T00:02:30.564Z","evidence_byte_length":95,"evidence_sha256":"sha256:af3bbedbccf16e313f161446345dbbb7c4c8f1fca4b8b9242d2dcd4ae43dd673","evidence_url":"https://zambo.dev/api/evidence/af3bbedbccf16e313f161446345dbbb7c4c8f1fca4b8b9242d2dcd4ae43dd673","output_sha256":"sha256:d64173a50a563bdf772e703e6a70f84063b194806eb0cd030bf878add7929460","receipt_uuid":"a0a9e22c-ca60-4425-86e9-109fddf8610e","schema_version":"zambo-receipt-anchor/1"}

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

Check this hash yourself

Open the verification endpoint. The server recomputes the SHA-256 from the stored bytes and answers verified:true. If it does not say verified, do not trust this page. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

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