Verifiable receipt 5d8ee089 - 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 · $81,600.00 USD\n▼ 2.15% (24h) · Market cap: $1639.63B\n\nLive price via CoinGecko · Wed, 14 Oct 2026 16:16:07 GMT","verify":{"status":"complete","message":"BTC-USD price and source were returned by the live price provider."}}

This is the saved result preview, not proof that the answer was correct.

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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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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: 2026-10-14T16:16:07.108Z; 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: 5d8ee089-1a2d-4217-8b98-8fdced50c3db
SHA-256 output hash: sha256:a56d7055bfc76ff0a405af6ad38e8a16ff3b91d2431a5447edef6c17001c6fe3
Canonical bytes: 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
Timestamp: 2026-10-14T16:16:07.108Z

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:cf73b9c1ca0ee6566dde72e06d3a4a743c37805abf8ac90bae353dabd5729183
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: sha256:9da09d4cd8768a450949984339525b58cd821126deb224e22a400b5ead3aa445
Byte length: 97

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: 2026-10-14T16:16:07.060Z · raw response hash: sha256:9da09d4cd8768a450949984339525b58cd821126deb224e22a400b5ead3aa445

Neutral Nostr anchor

Event ID: ea173787a0cecef1869cde0a0256a04c7948331958b464536e85988d26252496
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":"2026-10-14T16:16:07.108Z","evidence_byte_length":97,"evidence_sha256":"sha256:9da09d4cd8768a450949984339525b58cd821126deb224e22a400b5ead3aa445","evidence_url":"https://zambo.dev/api/evidence/9da09d4cd8768a450949984339525b58cd821126deb224e22a400b5ead3aa445","output_sha256":"sha256:a56d7055bfc76ff0a405af6ad38e8a16ff3b91d2431a5447edef6c17001c6fe3","receipt_uuid":"5d8ee089-1a2d-4217-8b98-8fdced50c3db","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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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HTML

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