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: 2026-10-21T08:56:29.500Z; 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

e05211e9-3062-45dd-9b6c-f4d62838b90e

SHA-256 output hash

sha256:fa840d835f1e8d7ec236ab4b3691f40b783e31d5ba7da9fb67c9d91be30ed379

Canonical bytes

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

Timestamp

2026-10-21T08:56:29.500Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:9b3d964fde2518189a41ad61b3b43da1c99c287ce7fd458ac873c548653f142c

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

a6f466a8fbb5978d244b623231b459cd889bc600b1d7c049bc0d86052dd948da

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":"2026-10-21T08:56:29.500Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:fa840d835f1e8d7ec236ab4b3691f40b783e31d5ba7da9fb67c9d91be30ed379","receipt_uuid":"e05211e9-3062-45dd-9b6c-f4d62838b90e","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.