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: 2026-10-21T05:04:55.020Z; 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

aea5287a-ae86-4190-aad1-f8fb437060fa

SHA-256 output hash

sha256:4f448b11fe48e93ee7a0fede47ba778661a7001b5c911d661e975bd3fb8968fa

Canonical bytes

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

Timestamp

2026-10-21T05:04:55.020Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:31afe5c63a3a7cdb0b5fa40f32d41190c91eea4f1745d75bd0de6001229b9738

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

76c664aeff122e76ba1713f8f9c61440514eb7254c9aecde80798776420f010f

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":"2026-10-21T05:04:55.020Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:4f448b11fe48e93ee7a0fede47ba778661a7001b5c911d661e975bd3fb8968fa","receipt_uuid":"aea5287a-ae86-4190-aad1-f8fb437060fa","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.