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: 2026-10-21T08:09:59.486Z; 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

fab95e65-4a6e-4e6c-961c-7bf02f622541

SHA-256 output hash

sha256:eec4e63a622455aeffa9c45ad4eca951f950bb2d4111899b8182991ccfc036e6

Canonical bytes

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

Timestamp

2026-10-21T08:09:59.486Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:8166273d52b3d26a4b1f2f4bb171f8d312022343675f7d84710eaff88bb19b82

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

88f2f19a53c41bd86c126355f8a38161803eac3f040ccc074b684e181d0148ea

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":"2026-10-21T08:09:59.486Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:eec4e63a622455aeffa9c45ad4eca951f950bb2d4111899b8182991ccfc036e6","receipt_uuid":"fab95e65-4a6e-4e6c-961c-7bf02f622541","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.