Verifiable receipt d21c2850 - journal_log result | Zambo

Verifiable receipt for a journal_log call on Zambo: {"status":"logged","provenance_class":"LOGGED BY AGENT","entry":{"job_id":"test","entry_id":"27c00617-6dcb-4

Observed result

{"status":"logged","provenance_class":"LOGGED BY AGENT","entry":{"job_id":"test","entry_id":"27c00617-6dcb-458d-94ae-30acb429fdaa","sequence":1,"provenance_class":"LOGGED BY AGENT","tool_name":"probe","redacted_inputs_hash":null,"started_at":"2026-10-10T00:51:25.458Z","completed_at":"2026-10-10T00:51:25.458Z","duration_ms":0,"executor_identity":"zambo-receipt-bot","external_executor":null,"metadata":{},"prev_hash":null,"entry_hash":"sha256:50258c77e4ffd5d6847a1fb693ebfa4095a00821e89ba882b3f77e1c1be6e0b6","deleted":false},"attests":"Zambo attests that this record was received, redacted, timestamped, and chained.","does_not_attest":"Zambo did not run or observe the reported action.","verify_url":"https://zambo.dev/api/journal/test/verify"}

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.

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.

Whole job timeline

This append-only chain shows the entries available to Zambo. The labels describe what Zambo did and what it did not do.

LOGGED BY AGENT probe

An agent reported this action. Zambo did not run or observe it.

Sequence
1

Executor
zambo-receipt-bot

Completed
2026-10-10T00:51:25.458Z

Input hash
not supplied

Entry hash
sha256:50258c77e4ffd5d6847a1fb693ebfa4095a00821e89ba882b3f77e1c1be6e0b6

Chain status: valid. The chain has not been checked.

What is this?

Zambo's receipt store reports a journal entry from an agent or local hook. The SHA-256 commitment covers the receipt bytes. The provenance label is only a claim, not proof of issuer identity or that the reported action happened.

What is this receipt?

This is a verifiable receipt for a journal entry. It confirms receipt, redaction, timestamping, and chaining. It does not attest to execution.

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; The metadata claim is consistent with the verified receipt 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: 2026-10-10T00:51:25.545Z; external immutability is not checked

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Committed provenance claim

LOGGED BY AGENT

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID: d21c2850-ec9d-425d-acb6-8aa053fd8780
SHA-256 output hash: sha256:bbe367c4af3caea3837e0f205c920c31f0b048bc6ddaf2e3c8d87eaeb635c94c
Canonical bytes: eyJjYWxsZXIiOnsiYmFzaXMiOiJpcF91YV8zMGQiLCJpZCI6InNoYTI1NjpkY2Y4YzYyN2MyM2Q3NmNmMTQ2MDg4ZTc5ZWY5ZWNkMTczZWJmYTdhZWUxOGQyMDU5NGRmY2RhZmY5MTljN2E4IiwibGFiZWwiOiJ6YW1iby1yZWNlaXB0LWJvdCIsImxhYmVsX3NvdXJjZSI6ImNhbGxlcl9yZXBvcnRlZCIsInJvdGF0ZXNfYXQiOiIyMDI2LTExLTAzVDAwOjAwOjAwLjAwMFoiLCJ0eXBlIjoiYW5vbnltb3VzIn0sImlzc3Vlcl9jbGFpbXMiOnsicHJvdmVuYW5jZV9jbGFzcyI6IkxPR0dFRCBCWSBBR0VOVCJ9LCJvdXRwdXQiOnsiYXR0ZXN0cyI6IlphbWJvIGF0dGVzdHMgdGhhdCB0aGlzIHJlY29yZCB3YXMgcmVjZWl2ZWQsIHJlZGFjdGVkLCB0aW1lc3RhbXBlZCwgYW5kIGNoYWluZWQuIiwiZG9lc19ub3RfYXR0ZXN0IjoiWmFtYm8gZGlkIG5vdCBydW4gb3Igb2JzZXJ2ZSB0aGUgcmVwb3J0ZWQgYWN0aW9uLiIsImVudHJ5Ijp7ImNvbXBsZXRlZF9hdCI6IjIwMjYtMTAtMTBUMDA6NTE6MjUuNDU4WiIsImRlbGV0ZWQiOmZhbHNlLCJkdXJhdGlvbl9tcyI6MCwiZW50cnlfaGFzaCI6InNoYTI1Njo1MDI1OGM3N2U0ZmZkNWQ2ODQ3YTFmYjY5M2ViZmE0MDk1YTAwODIxZTg5YmE4ODJiM2Y3N2UxYzFiZTZlMGI2IiwiZW50cnlfaWQiOiIyN2MwMDYxNy02ZGNiLTQ1OGQtOTRhZS0zMGFjYjQyOWZkYWEiLCJleGVjdXRvcl9pZGVudGl0eSI6InphbWJvLXJlY2VpcHQtYm90IiwiZXh0ZXJuYWxfZXhlY3V0b3IiOm51bGwsImpvYl9pZCI6InRlc3QiLCJtZXRhZGF0YSI6e30sInByZXZfaGFzaCI6bnVsbCwicHJvdmVuYW5jZV9jbGFzcyI6IkxPR0dFRCBCWSBBR0VOVCIsInJlZGFjdGVkX2lucHV0c19oYXNoIjpudWxsLCJzZXF1ZW5jZSI6MSwic3RhcnRlZF9hdCI6IjIwMjYtMTAtMTBUMDA6NTE6MjUuNDU4WiIsInRvb2xfbmFtZSI6InByb2JlIn0sInByb3ZlbmFuY2VfY2xhc3MiOiJMT0dHRUQgQlkgQUdFTlQiLCJzdGF0dXMiOiJsb2dnZWQiLCJ2ZXJpZnlfdXJsIjoiaHR0cHM6Ly96YW1iby5kZXYvYXBpL2pvdXJuYWwvdGVzdC92ZXJpZnkifSwicmVjZWlwdF9zY2hlbWFfdmVyc2lvbiI6IjAuNCIsInNpZGVfZWZmZWN0cyI6eyJkZWNsYXJhdGlvbl9oYXNoIjoic2hhMjU2OmRmYjQ0MTJhYTQyOWQzYWM2MzdhMDU2NjhjNDM1YmNjOTBhMjUxMzYzZmNkZDQ5ZjdiODVhZTRhYjU1YjViYzkiLCJkZWNsYXJlZCI6WyJzdGF0ZV93cml0ZSJdLCJzY2hlbWFfdmVyc2lvbiI6InphbWJvLXNpZGUtZWZmZWN0cy8xIn0sInRvb2wiOnsibmFtZSI6ImpvdXJuYWxfbG9nIiwic2NvcGUiOiJwdWJsaWMiLCJ2ZXJzaW9uIjoiNC4wLjAifX0=
Timestamp: 2026-10-10T00:51:25.545Z

Bound call context

Receipt schema: 0.4
Tool name: journal_log
Tool version: 4.0.0
Permission scope: public
Caller type: anonymous
Caller ID: sha256:dcf8c627c23d76cf146088e79ef9ecd173ebfa7aee18d20594dfcdaff919c7a8
Caller basis: ip_ua_30d
Caller rotates at: 2026-11-03T00:00:00.000Z
Caller-reported label: zambo-receipt-bot (caller_reported, not authenticated team ownership)
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: no_upstream_bytes_captured
Evidence SHA-256: unavailable
Byte length: unavailable

Neutral Nostr anchor

Event ID: 7fdf7f74b3427217f529e58cb3f6befafa24cd710608eb574ccc06539a5a87af
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":"2026-10-10T00:51:25.545Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:bbe367c4af3caea3837e0f205c920c31f0b048bc6ddaf2e3c8d87eaeb635c94c","receipt_uuid":"d21c2850-ec9d-425d-acb6-8aa053fd8780","schema_version":"zambo-receipt-anchor/1"}

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

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/d21c2850-ec9d-425d-acb6-8aa053fd8780/badge.svg)](https://zambo.dev/run/d21c2850-ec9d-425d-acb6-8aa053fd8780)

HTML

<a href="https://zambo.dev/run/d21c2850-ec9d-425d-acb6-8aa053fd8780"><img src="https://zambo.dev/api/receipt/d21c2850-ec9d-425d-acb6-8aa053fd8780/badge.svg" alt="Verifiable Zambo receipt"></a>

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