A note in your job log · saved and checkable

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 receipt?

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

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.

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.
• Metadata binding: PASS; metadata_hash matches the canonical metadata block.
• 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: 2026-10-22T19:22:16.220Z; external immutability is not checked

Committed provenance claim

LOGGED BY AGENT

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

Receipt ID

722df4c6-bfe4-4699-92af-e26c707db9c3

SHA-256 output hash

sha256:ae6c02ccb15257ec0963dd8a5671a66e2e79031cfb02d480e57a0d1cc7bddc8b

Canonical bytes

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

Timestamp

2026-10-22T19:22:16.220Z

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:cafdd10f89be18a860a0ce749228f0dae2a4bbe743e6b3b673ed5a68786bc269

Caller basis

ip_ua_30d

Caller rotates at

2026-11-03T00:00:00.000Z

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

7c767e77bdc270cbf81b09993b6b06cec14b023930c28c70989062fe960d15f1

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":"2026-10-22T19:22:16.220Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:ae6c02ccb15257ec0963dd8a5671a66e2e79031cfb02d480e57a0d1cc7bddc8b","receipt_uuid":"722df4c6-bfe4-4699-92af-e26c707db9c3","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

Receipt commitment: commitment matched; issuer, signature and chain not checked. This checks the saved bytes, not whether the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.