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: 2026-10-21T08:19:12.429Z; 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

3c6c0b1b-6837-4911-8619-9a2062b7c5ed

SHA-256 output hash

sha256:41fee779dc1c47918fb448e6684a718748c942cbe73e3bf8cc855371a4758cd5

Canonical bytes

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

Timestamp

2026-10-21T08:19:12.429Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:5a8bcdacf7e9a48eb22f85948a226fdf14bc13dd7fdc49f2c75b1d4cf77bf1d1

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

1063da36354d47e7073123c89d35141dc9bbdf3edf03425b69e1180835f4b73f

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":"2026-10-21T08:19:12.429Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:41fee779dc1c47918fb448e6684a718748c942cbe73e3bf8cc855371a4758cd5","receipt_uuid":"3c6c0b1b-6837-4911-8619-9a2062b7c5ed","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.