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: 2026-10-21T16:31:17.249Z; 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

dece1051-49a1-4aa4-a72a-5c52a58d2f2c

SHA-256 output hash

sha256:c551f20bf779ff9ee2df65246d9e928a2bd958cb0e7133b21a3ad312085b9166

Canonical bytes

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

Timestamp

2026-10-21T16:31:17.249Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:3556a4d1807d6e909684631333ac64ec82d41f54625115c2420838caad10c617

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

b392dcdcfdc54e044bf32a251e1f5f9a79d61292e2fecc2c414c558779e57e9b

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":"2026-10-21T16:31:17.249Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:c551f20bf779ff9ee2df65246d9e928a2bd958cb0e7133b21a3ad312085b9166","receipt_uuid":"dece1051-49a1-4aa4-a72a-5c52a58d2f2c","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.