Verifiable receipt cb65f9be - zambo_universal 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: 2026-10-16T14:34:01.004Z; 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

cb65f9be-5fcc-440e-b6cf-dc297dc1c5c4

SHA-256 output hash

sha256:b5753b78c3c51daf95f1c5eeeefe5eba80d06a5f8c9b88c6999953a547ce99e0

Canonical bytes

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

Timestamp

2026-10-16T14:34:01.004Z

Bound call context

Receipt schema

0.4

Tool name

zambo_universal

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:4b722c5a646efaf4c86ef3494ffbbab33a6b03ed5a888b0148fa0f836e9ce72b

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

1463e1bd7816d6055b9fa2e16214cd45f374cbc1e16417ab70314e9a9e42b715

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":"2026-10-16T14:34:01.004Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:b5753b78c3c51daf95f1c5eeeefe5eba80d06a5f8c9b88c6999953a547ce99e0","receipt_uuid":"cb65f9be-5fcc-440e-b6cf-dc297dc1c5c4","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

API v2 status: verified. This status summarizes the v2 commitment and provenance checks; it does not prove 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.