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: 2026-11-08T00:22:23.469Z; 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

27c69f3d-84f7-487f-b713-559095d96b0e

SHA-256 output hash

sha256:29f684b182b223a4deb593da564fc56ded3f0e1fae746ee2c6cf629fe1889f49

Canonical bytes

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

Timestamp

2026-11-08T00:22:23.469Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:02828adea4ceb5e2614302585eb05c9d1725a3093b41df973bee2af39cc2f790

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

empty

Evidence SHA-256

unavailable

Byte length

unavailable

Neutral Nostr anchor

Event ID

8f5e69497970c50301500aec94684c5fee943d5e4409112b39e3349bb740199e

Anchor status

published

Public key

e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-08T00:22:23.469Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:29f684b182b223a4deb593da564fc56ded3f0e1fae746ee2c6cf629fe1889f49","receipt_uuid":"27c69f3d-84f7-487f-b713-559095d96b0e","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

Relay publication is separate from receipt integrity. When the original signed event is available, Zambo retries pending, partial, or failed anchors about once a minute. Relay acknowledgements are external, so there is no guaranteed completion time; the receipt remains checkable from its saved bytes and verification link.

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.