Verifiable receipt dbf255fa - 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 · $86,346.00 USD\n▲ 1.85% (24h) · Market cap: $1734.79B\n\nLive price via CoinGecko · Sun, 04 Oct 2026 22:42:46 GMT","verify":{"status":"complete","message":"BTC-USD price and source were returned by the live price provider."}}

Provenance for every timeline entry

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

UNLOCK 24H DAY PASS ($0.99) →

See all plans on the pricing page →

RUN YOUR OWN FREE CALL →

Or re-run this exact call, using the same tool and arguments.

Share this receipt

Share on X ·

Verification checks

Proof of observed execution

EXECUTED BY ZAMBO

Receipt ID
dbf255fa-3c84-4c2a-ab6f-1ba1925960ce
SHA-256 output hash
sha256:a0cbe5ce7c7c8d4397e2d47dfa1f4b7d078ef315d89f9da166854d1f56959f68
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.3
Tool name
zambo_universal
Tool version
4.0.0
Permission scope
public
Caller type
anonymous
Caller ID
sha256:886bc856d9066e7ed8eb4627c8f99e5ba939048ca994dc2cc14821b2845cd125
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:afe54d22cace96dd4d5eecce7b86ddb9003e5ff718f86b061afc8f86f00e32bb
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.

Neutral Nostr anchor

Event ID
8df272a13435ccb64c18aa5b7f02fa31e5f0361bd9942294fe1a0d5e71c7b2d4
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":"2026-10-04T22:42:46.137Z","evidence_byte_length":97,"evidence_sha256":"sha256:afe54d22cace96dd4d5eecce7b86ddb9003e5ff718f86b061afc8f86f00e32bb","evidence_url":"https://zambo.dev/api/evidence/afe54d22cace96dd4d5eecce7b86ddb9003e5ff718f86b061afc8f86f00e32bb","output_sha256":"sha256:a0cbe5ce7c7c8d4397e2d47dfa1f4b7d078ef315d89f9da166854d1f56959f68","receipt_uuid":"dbf255fa-3c84-4c2a-ab6f-1ba1925960ce","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

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/dbf255fa-3c84-4c2a-ab6f-1ba1925960ce/badge.svg)](https://zambo.dev/run/dbf255fa-3c84-4c2a-ab6f-1ba1925960ce)

HTML

<a href="https://zambo.dev/run/dbf255fa-3c84-4c2a-ab6f-1ba1925960ce"><img src="https://zambo.dev/api/receipt/dbf255fa-3c84-4c2a-ab6f-1ba1925960ce/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent receipts

39,632 verifiable receipts minted

RUN YOUR OWN FREE CALL →

Run your own calls. Free, 20 calls per tool per day, no account.

Open the interactive receipt view