Verifiable receipt ae795bf0 - 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 · $84,001.10 USD\n▲ 0.00% (24h) · Market cap: unavailable\n\nLive price via Coinbase · Tue, 29 Sep 2026 10:57:55 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 proves the call completed. 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
ae795bf0-27f8-4cf2-8aef-3f8142b77217
SHA-256 output hash
sha256:f52d9c03605047ad0ac347e5e9cbc0e2e197a009d8ee5c7d775f86f360eca963
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:e357cdd3ecbfe1fe47ef58e42c228cc68ae8c148ae5242b3e6b935dddc92cdc5
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
sha256:897905407af5e16eb900e87c0bd8b4ddb165773b63bbe560971e6d19b5f3e0cf
Byte length
919

Fetch exact evidence bytes

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

Maximum comparable-source deviation: not comparable

Neutral Nostr anchor

Event ID
17f56ce398518a6438d3b553994647e65682b15153e73b0a82b2fe060a00cf59
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":"2026-09-29T10:57:55.391Z","evidence_byte_length":919,"evidence_sha256":"sha256:897905407af5e16eb900e87c0bd8b4ddb165773b63bbe560971e6d19b5f3e0cf","evidence_url":"https://zambo.dev/api/evidence/897905407af5e16eb900e87c0bd8b4ddb165773b63bbe560971e6d19b5f3e0cf","output_sha256":"sha256:f52d9c03605047ad0ac347e5e9cbc0e2e197a009d8ee5c7d775f86f360eca963","receipt_uuid":"ae795bf0-27f8-4cf2-8aef-3f8142b77217","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

Open the verification endpoint. The server recomputes the SHA-256 from the stored bytes and answers verified:true. If it does not say verified, do not trust this page. 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/ae795bf0-27f8-4cf2-8aef-3f8142b77217/badge.svg)](https://zambo.dev/run/ae795bf0-27f8-4cf2-8aef-3f8142b77217)

HTML

<a href="https://zambo.dev/run/ae795bf0-27f8-4cf2-8aef-3f8142b77217"><img src="https://zambo.dev/api/receipt/ae795bf0-27f8-4cf2-8aef-3f8142b77217/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent verifiable receipts

37,637 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