Verifiable receipt ab5a95b6 - zambo_share result | Zambo

Observed result

{"status":"shared","url":"https://zambo.dev/win/xnspp38tl","id":"xnspp38tl","message":"Your result is public at https://zambo.dev/win/xnspp38tl — share it on X, Discord, or Slack. Anyone who clicks will see your result and a 'Try Zambo Free' button. Every share brings new users in.","share_text":"Just got this from Zambo: Proof of Gauntlet - Argent Grin, Season 2 — https://zambo.dev/win/xnspp38tl"}

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.

• Read the AER-1 Internet-Draft
• Check the saved bytes in your browser
• Open the API v2 JSON check
• See example fixtures

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.

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.

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Verification checks

• SHA-256 commitment: Checked independently against the exact decoded bytes
• Provenance binding: PASS; provenance_class is bound to these bytes; issuer is not authenticated.
• 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: 2026-10-07T23:26:39.546Z; external immutability is not checked

Committed provenance claim

EXECUTED BY ZAMBO

provenance_class is bound to these bytes; issuer is not authenticated.

Receipt ID

ab5a95b6-f5b2-4982-bb82-aef01d0f0316

SHA-256 output hash

sha256:d6478a0cfde50050edd549c2fd6cf1303cbcedeecf96aa85cf344725b6af3aa1

Canonical bytes

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

Timestamp

2026-10-07T23:26:39.546Z

Bound call context

Receipt schema

0.4

Tool name

zambo_share

Tool version

4.0.0

Permission scope

public

Caller type

anonymous

Caller ID

sha256:3dafb560d37e167f447554d807b1cd47f582e15e3b5b518070f0750f90043d12

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

sha256:46ff6f2b337af1d2935b2554d9c93628abc996f5059738c48ebfa34364948766

Byte length

58

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID

da94c3d15bfeb9b6733d9440e68d425995de461269d487c9886666753556da30

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":"2026-10-07T23:26:39.511Z","evidence_byte_length":58,"evidence_sha256":"sha256:46ff6f2b337af1d2935b2554d9c93628abc996f5059738c48ebfa34364948766","evidence_url":"https://zambo.dev/api/evidence/46ff6f2b337af1d2935b2554d9c93628abc996f5059738c48ebfa34364948766","output_sha256":"sha256:d6478a0cfde50050edd549c2fd6cf1303cbcedeecf96aa85cf344725b6af3aa1","receipt_uuid":"ab5a95b6-f5b2-4982-bb82-aef01d0f0316","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/ab5a95b6-f5b2-4982-bb82-aef01d0f0316/badge.svg)](https://zambo.dev/run/ab5a95b6-f5b2-4982-bb82-aef01d0f0316)

HTML

<a href="https://zambo.dev/run/ab5a95b6-f5b2-4982-bb82-aef01d0f0316"><img src="https://zambo.dev/api/receipt/ab5a95b6-f5b2-4982-bb82-aef01d0f0316/badge.svg" alt="Verifiable Zambo receipt"></a>

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