Verifiable receipt b190843a - zambo_universal result | Zambo

Part of workflow: View full workflow receipt →

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 · $84,730.00 USD\n▲ 1.87% (24h) · Market cap: $1702.05B\n\nLive price via CoinGecko · Fri, 25 Sep 2026 09:37:40 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?

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.

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

Committed provenance claim

EXECUTED BY ZAMBO

legacy receipt, provenance not cryptographically bound

Receipt ID
b190843a-53bc-4c58-9c9a-d5d4c6ea7715
SHA-256 output hash
sha256:5c280ddb14fe01aeddd5b3441be25f0078255222102543930fa417d81a1d7d38
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
session
Caller ID
sha256:b8accddf70e738e1617f27223c623ba041a12f61df758430afbd1fda6a6f5b75
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
sha256:05279f0a25c6285ee0ed9859fa305c4c3392d4d5db62daf758a8cbf93f774ebd
Byte length
95

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
4932ad2a4d8642bd4aca5554ffb67e2457df8dc047baa23101fc50d640c6615a
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":"2026-09-25T09:37:40.071Z","evidence_byte_length":95,"evidence_sha256":"sha256:05279f0a25c6285ee0ed9859fa305c4c3392d4d5db62daf758a8cbf93f774ebd","evidence_url":"https://zambo.dev/api/evidence/05279f0a25c6285ee0ed9859fa305c4c3392d4d5db62daf758a8cbf93f774ebd","output_sha256":"sha256:5c280ddb14fe01aeddd5b3441be25f0078255222102543930fa417d81a1d7d38","receipt_uuid":"b190843a-53bc-4c58-9c9a-d5d4c6ea7715","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/b190843a-53bc-4c58-9c9a-d5d4c6ea7715/badge.svg)](https://zambo.dev/run/b190843a-53bc-4c58-9c9a-d5d4c6ea7715)

HTML

<a href="https://zambo.dev/run/b190843a-53bc-4c58-9c9a-d5d4c6ea7715"><img src="https://zambo.dev/api/receipt/b190843a-53bc-4c58-9c9a-d5d4c6ea7715/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent receipts

40,837 verifiable receipts minted

RUN YOUR OWN FREE CALL →

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

Open the interactive receipt view