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: 2026-10-21T11:00:40.193Z; 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

d4fe5d9f-5850-4e46-8a98-99d5ee0347e9

SHA-256 output hash

sha256:1fc0d5da84b67d54d6541b1e080ed9ca5b67896a98155eb12bfef3c651fbea04

Canonical bytes

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

Timestamp

2026-10-21T11:00:40.193Z

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:b876bb8c47d00414bf919cb0d48ca7a74c5e863cc2822485b20e013f0057aea7

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

47ac7c172ddf78035b35da34bd8a2640b5c6ecbe2dcee51446ba811a962a2434

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":"2026-10-21T11:00:40.193Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:1fc0d5da84b67d54d6541b1e080ed9ca5b67896a98155eb12bfef3c651fbea04","receipt_uuid":"d4fe5d9f-5850-4e46-8a98-99d5ee0347e9","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.