Verifiable receipt aba78dba - live_price result | Zambo

Verifiable receipt for a live_price call on Zambo: ETH · $2,492.37 USD ▼ 0.33% (24h) · Market cap: $304.40B Live price via CoinGecko · Sat, 10 Oct 2026 08:24:20

Observed result

ETH · $2,492.37 USD
▼ 0.33% (24h) · Market cap: $304.40B

Live price via CoinGecko · Sat, 10 Oct 2026 08:24:20 GMT

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?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

What is an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

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

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Verification checks

SHA-256 commitment: Checked independently against the exact decoded bytes
Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
Chain: NOT CHECKED; no append-only chain proof is validated
Stored timestamp: 2026-10-10T08:24:20.601Z; external immutability is not checked

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Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID: aba78dba-8fee-4f6b-b84e-277afa4be9ad
SHA-256 output hash: sha256:4c5ac15851a9070fdbf04fefb73ff65ff34fcfdf9116f9a2f5e100123f02d44a
Canonical bytes: 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
Timestamp: 2026-10-10T08:24:20.601Z

Bound call context

Receipt schema: 0.4
Tool name: live_price
Tool version: 4.0.0
Permission scope: public
Caller type: session
Caller ID: sha256:555e8cc0bc2c3f3db81f59a3160ec234a89600a77c2759d21804fc35dcaa885a
Declared side effects: none
Side-effects schema: zambo-side-effects/1
Declaration hash: sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

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: sha256:9e621bb60217d2fb03fd2429f268f1710292bccd899b330d24520923407ef96f
Byte length: 101

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: 2026-10-10T08:24:20.473Z · raw response hash: sha256:9e621bb60217d2fb03fd2429f268f1710292bccd899b330d24520923407ef96f

Neutral Nostr anchor

Event ID: 2f8ae313c38711094631a8f810ed4e777c5c5b843684dd4780b2fb01850d1108
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":"2026-10-10T08:24:20.601Z","evidence_byte_length":101,"evidence_sha256":"sha256:9e621bb60217d2fb03fd2429f268f1710292bccd899b330d24520923407ef96f","evidence_url":"https://zambo.dev/api/evidence/9e621bb60217d2fb03fd2429f268f1710292bccd899b330d24520923407ef96f","output_sha256":"sha256:4c5ac15851a9070fdbf04fefb73ff65ff34fcfdf9116f9a2f5e100123f02d44a","receipt_uuid":"aba78dba-8fee-4f6b-b84e-277afa4be9ad","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/aba78dba-8fee-4f6b-b84e-277afa4be9ad"><img src="https://zambo.dev/api/receipt/aba78dba-8fee-4f6b-b84e-277afa4be9ad/badge.svg" alt="Verifiable Zambo receipt"></a>

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