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: 2026-10-21T09:30:43.497Z; 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

930bd07d-a694-4884-8d7d-91cc6499b539

SHA-256 output hash

sha256:ef61292a06809bca9c5e0b180d87216ab7e849f990a5c01fa77b650027dd35fd

Canonical bytes

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

Timestamp

2026-10-21T09:30:43.497Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:92d67847b2ad1c8f097bda669737c4353ef490aad94988cb1ddf2944501e1365

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

78f36e4110b609090b35966e196886745b52cd3224ae34c8f8879fa5e5f6952c

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":"2026-10-21T09:30:43.497Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:ef61292a06809bca9c5e0b180d87216ab7e849f990a5c01fa77b650027dd35fd","receipt_uuid":"930bd07d-a694-4884-8d7d-91cc6499b539","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.