Verifiable receipt 2ca770cc - 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 · $86,737.00 USD\n▲ 2.37% (24h) · Market cap: $1742.85B\n\nLive price via CoinGecko · Sun, 04 Oct 2026 23:30:39 GMT","verify":{"status":"complete","message":"BTC-USD price and source were returned by the live price provider."}}

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?

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

SHA-256 commitment: Recomputed by the linked API v2 check from the exact decoded bytes
Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
Chain: NOT CHECKED; no append-only chain proof is validated
Stored timestamp: 2026-10-04T23:30:39.295Z; external immutability is not checked

Proof of observed execution

EXECUTED BY ZAMBO

Receipt ID: 2ca770cc-fa66-4c1a-be53-f9600c7b647f
SHA-256 output hash: sha256:e3cd224ef64bf92905d498ac17a19ecebef5c83f4db01e21a8fe613cc3c845fc
Canonical bytes: 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
Timestamp: 2026-10-04T23:30:39.295Z

Bound call context

Receipt schema: 0.3
Tool name: zambo_universal
Tool version: 4.0.0
Permission scope: public
Caller type: anonymous
Caller ID: sha256:886bc856d9066e7ed8eb4627c8f99e5ba939048ca994dc2cc14821b2845cd125
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: sha256:57d90740952c03bb0647d55e8cf8bab754201f023f86425227bab388565acfea
Byte length: 96

Fetch exact evidence bytes

Upstream provenance

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

Source: CoinGecko · queried at: 2026-10-04T23:30:39.217Z · raw response hash: sha256:57d90740952c03bb0647d55e8cf8bab754201f023f86425227bab388565acfea

Neutral Nostr anchor

Event ID: 7139214965945ccb70e69d7a4704df64e21537cfcf6d7a8695ed1fef61331739
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":"2026-10-04T23:30:39.267Z","evidence_byte_length":96,"evidence_sha256":"sha256:57d90740952c03bb0647d55e8cf8bab754201f023f86425227bab388565acfea","evidence_url":"https://zambo.dev/api/evidence/57d90740952c03bb0647d55e8cf8bab754201f023f86425227bab388565acfea","output_sha256":"sha256:e3cd224ef64bf92905d498ac17a19ecebef5c83f4db01e21a8fe613cc3c845fc","receipt_uuid":"2ca770cc-fa66-4c1a-be53-f9600c7b647f","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/2ca770cc-fa66-4c1a-be53-f9600c7b647f"><img src="https://zambo.dev/api/receipt/2ca770cc-fa66-4c1a-be53-f9600c7b647f/badge.svg" alt="Verifiable Zambo receipt"></a>

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