Verifiable receipt 69990fa5 — 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

What is this?

An AI agent did real work through Zambo, and this page is the proof. The SHA-256 hash below is a fingerprint of exactly what the agent produced — change one character of the output and the fingerprint changes. The timestamp shows when it ran. The Nostr anchor posts that fingerprint to public relays, so the record exists outside Zambo too — anyone can look it up by the event ID below. You don't have to take the agent's word for it. 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":"ETH · $2,754.02 USD\n▲ 4.22% (24h) · Market cap: $336.15B\n\nLive price via CoinGecko · Mon, 21 Sep 2026 16:43:48 GMT","verify":{"status":"complete","message":"ETH-USD price and source were returned by the live price provider."}}

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.

UNLOCK 24H DAY PASS ($1.49) → ZAMBO PASS $49 →

RUN YOUR OWN FREE CALL →

Or re-run this exact call — same tool, same arguments.

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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: 2026-09-21T16:43:48.060Z

Proof of observed execution

Receipt ID: 69990fa5-2ddb-4ed4-99bd-8893f761291e
SHA-256 output hash: sha256:4fb8d32c753405c3218013c93cd2fec68d373399844c3a8cbd4708e09ef3726b
Canonical bytes: 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
Timestamp: 2026-09-21T16:43:48.060Z

Bound call context

Receipt schema: 0.3
Tool name: zambo_universal
Tool version: 4.0.0
Permission scope: public
Caller type: session
Caller ID: sha256:601431238d2d72f8e3268e3d21b1d72579197e6f2ed2a1a77fd6887a07779e14
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: sha256:5cc820f4260ea9207632af3ea8a7d759be54b36dbf409af8558ad50692cf43ab
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: 2026-09-21T16:43:48.009Z · raw response hash: sha256:5cc820f4260ea9207632af3ea8a7d759be54b36dbf409af8558ad50692cf43ab

Neutral Nostr anchor

Event ID: 9c93411d2d139c35077ac816d1ac54e98c46de6b18509739ad99067479174af9
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":"2026-09-21T16:43:48.027Z","evidence_byte_length":98,"evidence_sha256":"sha256:5cc820f4260ea9207632af3ea8a7d759be54b36dbf409af8558ad50692cf43ab","evidence_url":"https://zambo.dev/api/evidence/5cc820f4260ea9207632af3ea8a7d759be54b36dbf409af8558ad50692cf43ab","output_sha256":"sha256:4fb8d32c753405c3218013c93cd2fec68d373399844c3a8cbd4708e09ef3726b","receipt_uuid":"69990fa5-2ddb-4ed4-99bd-8893f761291e","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

Open the verification endpoint — the server recomputes the SHA-256 from the stored bytes and answers verified:true. If it doesn't say verified, don't 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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