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: 2026-10-21T15:20:25.418Z; 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

6c8a3f20-3876-4d50-8021-95e9d5ffac7d

SHA-256 output hash

sha256:1d8fdcab000f4efa8bc09d08760816bc636d47278d3b8f68433290d44b3e420a

Canonical bytes

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

Timestamp

2026-10-21T15:20:25.418Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:3deaad4bd3142c0dfa3fb90400b60f86e17425e615303a47b19a79432e0b4fb5

Caller-reported label

rambo-blitz-20261021-am (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

cea2433e1e053b289bc24d72abe18c166319bd44fa2f069b40bf5bf88b4b35cf

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":"2026-10-21T15:20:25.418Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:1d8fdcab000f4efa8bc09d08760816bc636d47278d3b8f68433290d44b3e420a","receipt_uuid":"6c8a3f20-3876-4d50-8021-95e9d5ffac7d","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.