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: 2026-10-21T13:00:58.255Z; 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

7fbf2a82-a7ef-4ea8-85b1-6d932ba5858c

SHA-256 output hash

sha256:85653c00d6fc4b5c6ec9d894b5672d12203471cf5434fac71a1aedcafc41a5a9

Canonical bytes

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

Timestamp

2026-10-21T13:00:58.255Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:5072e28c537aff688f581984037b861180272405d9d59ba7c2df92c557a7d461

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

5090d4210298de12156da7c1e7053423bc1fedc5ac67008c2800332eceece4d3

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":"2026-10-21T13:00:58.255Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:85653c00d6fc4b5c6ec9d894b5672d12203471cf5434fac71a1aedcafc41a5a9","receipt_uuid":"7fbf2a82-a7ef-4ea8-85b1-6d932ba5858c","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.