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: 2026-10-21T08:07:03.314Z; 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

095e5b55-d5f5-473b-b1c1-6f42b36b93ca

SHA-256 output hash

sha256:d0bbcafde7d75c5d471bd1d575d0b280306aa49dcef9a820d1b9eea655ddcb36

Canonical bytes

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

Timestamp

2026-10-21T08:07:03.314Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:01c4d6e998bb845720563debe46dbfbc6f7dc147113ba0a47514bb5a461f88e6

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

d6517a87065530ecfb1f8210fa0c532054b04cab1cec3c01dee8ba0b03816ed0

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":"2026-10-21T08:07:03.314Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:d0bbcafde7d75c5d471bd1d575d0b280306aa49dcef9a820d1b9eea655ddcb36","receipt_uuid":"095e5b55-d5f5-473b-b1c1-6f42b36b93ca","schema_version":"zambo-receipt-anchor/1"}

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

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.