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: 2026-11-15T00:17:10.308Z; 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

a33d2df7-fb53-4695-8500-116e6d6fa775

SHA-256 output hash

sha256:bfbfd0f5534389201b62a77915da20feaf27f89e403a71101113832c03cbe972

Canonical bytes

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

Timestamp

2026-11-15T00:17:10.308Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.1.4

Permission scope

public

Caller type

session

Caller ID

sha256:7851b8f862a20431480178eff118b38cab3bfb6b72317abc03d972d7ad851cec

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

empty

Evidence SHA-256

unavailable

Byte length

unavailable

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

• Source: · queried at: · raw response hash:

Neutral Nostr anchor

Event ID

1353c577fcf7aef9218671c81c651e61121caa5b4e289a64f0db0ffcaa10e906

Anchor status

published

Public key

e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-15T00:17:10.308Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:bfbfd0f5534389201b62a77915da20feaf27f89e403a71101113832c03cbe972","receipt_uuid":"a33d2df7-fb53-4695-8500-116e6d6fa775","schema_version":"zambo-receipt-anchor/1"}

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

Relay publication is separate from receipt integrity. When the original signed event is available, Zambo retries pending, partial, or failed anchors about once a minute. Relay acknowledgements are external, so there is no guaranteed completion time; the receipt remains checkable from its saved bytes and verification link.

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.