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: 2026-10-21T09:33:40.367Z; 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

c13ab8af-3e41-4764-9f0c-fd4779623a6e

SHA-256 output hash

sha256:92df4d525d2af908d6838e4c3f5fe0e938504de47644422c04eaab7b9d6b4113

Canonical bytes

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

Timestamp

2026-10-21T09:33:40.367Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:72ad71ca609ed463d305e65d17c90b855e9daf150cbae18774b12fcd1c21d4c0

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

f2f55ceae72538429509f1317cf45ea4265173e5e7e8e37e89299517deaa0256

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":"2026-10-21T09:33:40.367Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:92df4d525d2af908d6838e4c3f5fe0e938504de47644422c04eaab7b9d6b4113","receipt_uuid":"c13ab8af-3e41-4764-9f0c-fd4779623a6e","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.