Verifiable receipt 3465d24a - receipt_publication result | Zambo

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: 2026-10-18T17:18:50.790Z; 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

3465d24a-b111-56c7-a868-2bcc0b0e5e1a

SHA-256 output hash

sha256:83fabe84b654dd6f896cfcc9bd549e25bc122220403f78ae653785d16d8c32f6

Canonical bytes

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

Timestamp

2026-10-18T17:18:50.790Z

Bound call context

Receipt schema

0.4

Tool name

receipt_publication

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:0a84542aafbb54aeb6eabba11f733af4d8d7d8465b6ec40688759d2f9ae23cbf

Declared side effects

none

Side-effects schema

zambo-side-effects/1

Declaration hash

sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

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

64136262959b1f63dbfe4d784bcae5d22c662f5a008c013182a09fc650a010a9

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":"2026-10-18T17:18:50.790Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:83fabe84b654dd6f896cfcc9bd549e25bc122220403f78ae653785d16d8c32f6","receipt_uuid":"3465d24a-b111-56c7-a868-2bcc0b0e5e1a","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.