Verifiable receipt c234c62f - 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 · $84,107.00 USD\n▼ 0.45% (24h) · Market cap: $1689.64B\n\nLive price via CoinGecko · Sat, 26 Sep 2026 12:38:25 GMT","verify":{"status":"complete","message":"BTC-USD price and source were returned by the live price provider."}}

Verify this receipt

This is a verifiable receipt: the result above is hashed and timestamped at a permanent URL.

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.

Keep the work moving

This receipt proves the call completed. When the free allowance is not enough, choose the access path that fits the job.

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Verification checks

Integrity check: Recomputable from canonical bytes
Issued by zambo.dev: Served from the zambo.dev receipt store
Chain valid: Receipt hash chain is internally consistent
Recorded in the immutable log: 2026-09-26T12:38:25.308Z

Proof of observed execution

EXECUTED BY ZAMBO

Receipt ID: c234c62f-527b-4f84-8fc7-d1cd0ed125bb
SHA-256 output hash: sha256:41fe6821ee2d7de0ea9a084f0108c1457f914be0e849dac9fc7eed056d920975
Canonical bytes: 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
Timestamp: 2026-09-26T12:38:25.308Z

Bound call context

Receipt schema: 0.3
Tool name: zambo_universal
Tool version: 4.0.0
Permission scope: public
Caller type: anonymous
Caller ID: sha256:6387792d73486f5ca79616518c33acdff71b1f11cd433f43229b4ed2975417e6
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: sha256:747f2373f9dcc9c6e149ba3547b0b9dab8ee0db1b5b2396cc87f1bdd3ea25560
Byte length: 98

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: 2026-09-26T12:38:25.227Z · raw response hash: sha256:747f2373f9dcc9c6e149ba3547b0b9dab8ee0db1b5b2396cc87f1bdd3ea25560

Neutral Nostr anchor

Event ID: 82718356b0c41c8807a452cf412eee088232332c8c33fd7eafa18dbcc2dee682
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":"2026-09-26T12:38:25.278Z","evidence_byte_length":98,"evidence_sha256":"sha256:747f2373f9dcc9c6e149ba3547b0b9dab8ee0db1b5b2396cc87f1bdd3ea25560","evidence_url":"https://zambo.dev/api/evidence/747f2373f9dcc9c6e149ba3547b0b9dab8ee0db1b5b2396cc87f1bdd3ea25560","output_sha256":"sha256:41fe6821ee2d7de0ea9a084f0108c1457f914be0e849dac9fc7eed056d920975","receipt_uuid":"c234c62f-527b-4f84-8fc7-d1cd0ed125bb","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.

Embed this receipt

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HTML

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