Verifiable receipt 5c52d98e - 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":"ETH · $2,526.41 USD\n▼ 1.20% (24h) · Market cap: $308.58B\n\nLive price via CoinGecko · Tue, 13 Oct 2026 06:10:17 GMT","verify":{"status":"complete","message":"ETH-USD price and source were returned by the live price provider."}}
This is the saved result preview, not proof that the answer was correct.
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.
- Metadata binding: PASS; metadata_hash matches the canonical metadata block.
- 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: 2026-10-13T06:10:17.246Z; 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
5c52d98e-8251-4c4d-98af-bc66d80b2ed4- SHA-256 output hash
sha256:b1a38f7b1d99318b82c1a04d78f5814208cd6969e85308d34246689978652826- Canonical bytes
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- Timestamp
Bound call context
- Receipt schema
0.4- Tool name
zambo_universal- Tool version
4.0.0- Permission scope
public- Caller type
session- Caller ID
sha256:c242455274ad63959827bb3eb6c68c11b307dd280b73a92edcf8695665f37ccd- 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:bec3c08e444a1d7796c0ecadead6995f89294213f77350a6f12070b7681bda8e- Byte length
- 99
Upstream provenance
This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.
-
Source: CoinGecko
· queried at:
· raw response hash:
sha256:bec3c08e444a1d7796c0ecadead6995f89294213f77350a6f12070b7681bda8e
Neutral Nostr anchor
- Event ID
8e49fbd813d6df16c20b3688f6243e14d50520e10870a17a49c894d8044387cf- 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":"2026-10-13T06:10:17.246Z","evidence_byte_length":99,"evidence_sha256":"sha256:bec3c08e444a1d7796c0ecadead6995f89294213f77350a6f12070b7681bda8e","evidence_url":"https://zambo.dev/api/evidence/bec3c08e444a1d7796c0ecadead6995f89294213f77350a6f12070b7681bda8e","output_sha256":"sha256:b1a38f7b1d99318b82c1a04d78f5814208cd6969e85308d34246689978652826","receipt_uuid":"5c52d98e-8251-4c4d-98af-bc66d80b2ed4","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
API v2 status: verified. This status summarizes the v2 commitment and provenance checks; it does not prove the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.
Embed this receipt
Markdown
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