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: 2026-10-22T06:50:08.688Z; 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

90cd7969-98e5-4be2-b5d9-a2ab5f9b479b

SHA-256 output hash

sha256:3a9fea0823e8136c9b5143efa76f89acbf8fae13373c9ea633b227dc52916881

Canonical bytes

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

Timestamp

2026-10-22T06:50:08.688Z

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:a9c4d62d3955f77e01dcdf8fee094d7b948f64da5230c5ef51a2534ea7ea4118

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

3a0be53286a1195795710409905e7b37b8ae4e287d06d61bfe67dd3ea627f392

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":"2026-10-22T06:50:08.688Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:3a9fea0823e8136c9b5143efa76f89acbf8fae13373c9ea633b227dc52916881","receipt_uuid":"90cd7969-98e5-4be2-b5d9-a2ab5f9b479b","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.