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: 2026-10-21T17:01:10.819Z; 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

ba7868ec-afde-40e7-b81c-b2e107c54fdd

SHA-256 output hash

sha256:980b3b55eea8e045821d282a2e14381a135d8447913e8ff9417016c87bb77734

Canonical bytes

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

Timestamp

2026-10-21T17:01:10.819Z

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:b377e196482ce5058ed38ced514ddaff758cdeaa6bb71bacd9f65dffea9b3d5c

Caller-reported label

rambo-receipt-help-sweep (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

e7592145e5a5b94e768745e32f1681600191de80cb8ca24cf886eec1614378b8

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":"2026-10-21T17:01:10.819Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:980b3b55eea8e045821d282a2e14381a135d8447913e8ff9417016c87bb77734","receipt_uuid":"ba7868ec-afde-40e7-b81c-b2e107c54fdd","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.