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: 2026-10-21T15:35:01.723Z; 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

557cb7f5-9adf-487b-8116-102b630a0b03

SHA-256 output hash

sha256:783bfdf0fff9fb5624527eac66fd9a09abfe1157434652de38125c62d9b6048e

Canonical bytes

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

Timestamp

2026-10-21T15:35:01.723Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:98b28a38b7fe60ae98f0f93ec1af193471ed87e30f93c64cb383050dc5a1bf86

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

560408da646f4abfa170330da6ce25ba08f61abf85bc1418c7b8e438600bd3ed

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":"2026-10-21T15:35:01.723Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:783bfdf0fff9fb5624527eac66fd9a09abfe1157434652de38125c62d9b6048e","receipt_uuid":"557cb7f5-9adf-487b-8116-102b630a0b03","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.