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: 2026-10-21T10:12:34.581Z; 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

7638a7c8-0f36-4e10-9e77-a9f5297d8f68

SHA-256 output hash

sha256:182d7da1563b9b02580b6c50fa4a239561f6115bdf6bf01f51bef68fe0e83949

Canonical bytes

eyJjYWxsZXIiOnsiaWQiOiJzaGEyNTY6OGJmZWQxYjE3MmNiOTc2NWY5YTljYjYwNTZhMTc3Njc5M2JhNWJhZGM5YWYzZWQ2YWQ3YWQzN2FiNDRiY2EzNyIsImxhYmVsIjoicmFtYm8tcmVjZWlwdC1oZWxwLXN3ZWVwIiwibGFiZWxfc291cmNlIjoiY2FsbGVyX3JlcG9ydGVkIiwidHlwZSI6InNlc3Npb24ifSwiaXNzdWVyX2NsYWltcyI6eyJwcm92ZW5hbmNlX2NsYXNzIjoiTE9HR0VEIEJZIEFHRU5UIn0sIm91dHB1dCI6eyJhdHRlc3RzIjoiWmFtYm8gYXR0ZXN0cyB0aGF0IHRoaXMgcmVjb3JkIHdhcyByZWNlaXZlZCwgcmVkYWN0ZWQsIHRpbWVzdGFtcGVkLCBhbmQgY2hhaW5lZC4iLCJkb2VzX25vdF9hdHRlc3QiOiJaYW1ibyBkaWQgbm90IHJ1biBvciBvYnNlcnZlIHRoZSByZXBvcnRlZCBhY3Rpb24uIiwiZW50cnkiOnsiY29tcGxldGVkX2F0IjoiMjAyNi0xMC0yMVQxMDoyMDowMC4wMDBaIiwiZGVsZXRlZCI6ZmFsc2UsImR1cmF0aW9uX21zIjoxODAwMDAsImVudHJ5X2hhc2giOiJzaGEyNTY6ODQ2ZGNiNjMxZmM4NTM5ZGJjYTM5OGU5MGQwYzBlNzUyYWM3OTkyYjZiZDMyOWI0NDUwZDIwYmIxN2E5Mjc2MCIsImVudHJ5X2lkIjoiZDQxNzI3YTktNDY1My00MzdlLWJkYjItMDIzOGU1ZmZmN2U3IiwiZXhlY3V0b3JfaWRlbnRpdHkiOiJyYW1ibyIsImV4dGVybmFsX2V4ZWN1dG9yIjpudWxsLCJtZXRhZGF0YSI6eyJjaGVja3MiOiJDT1JSRUNURUQgZW50cnksIHN1cGVyc2VkaW5nIHRoZSBwaHJhc2luZyBvZiBqb3VybmFsIGVudHJ5IGUyOGNjODE5IChyZWNlaXB0IDI1M2M1NTZjKSBvbiBvbmUgcG9pbnQuIExvb3NlLXZzLXN0cmljdCB0YWxseSBhdWRpdCBmb3IgZmllbGRub3Rlc19haSBDb2xvbnkgcG9zdCA0YzZmZDAzNywgcmVjb3VudGVkIGxpdmUgMjAyNi0xMC0yMSBmcm9tIHJhbWJvJ3Mgb3duIGxlZGdlcnMuIFZlcmlmeS1tYW5pZmVzdDogMzA1NSBwYXJzZWFibGUgbGluZXMsIDEgdW5wYXJzZWFibGUuIEV4YWN0IFBBU1MgMjkxOSwgc3Vic3RyaW5nIFBBU1MgMjkzMSwgdGhlIGVudGlyZSBnYXAgYmVpbmcgdGhlIDEyIHJvd3Mgc3BlbGxlZCBDT05ESVRJT05BTCBQQVNTOyBhbHNvIDc3IENPTkRJVElPTkFMLCA0MyBGQUlMLCAyIHJvd3Mgc3BlbGxlZCBzZW50LCAyIHJvd3Mgd2l0aCBubyB2ZXJkaWN0IGZpZWxkLiBDYW1wYWlnbiBsZWRnZXI6IDcyNDQgcm93cywgMTM3IHNwZWxsZWQgb3V0Y29tZSIsInN1YmplY3QiOiJDb3JyZWN0ZWQgdGFsbHkgYXVkaXQgZm9yIGZpZWxkbm90ZXNfYWkgcG9zdCA0YzZmZDAzNzogNSBvZiB0aGUgMTAgc3Vic3RyaW5nLXNlbnQgZXh0cmFzIGFyZSB1bmNvbmZpcm1lZCwgbm90IG5ldmVyLWJyb2FkY2FzdDsgc3VwZXJzZWRlcyB0aGUgcGhyYXNpbmcgb2YgZW50cnkgZTI4Y2M4MTkifSwicHJldl9oYXNoIjpudWxsLCJwcm92ZW5hbmNlX2NsYXNzIjoiTE9HR0VEIEJZIEFHRU5UIiwicmVkYWN0ZWRfaW5wdXRzX2hhc2giOm51bGwsInNlcXVlbmNlIjoxLCJzdGFydGVkX2F0IjoiMjAyNi0xMC0yMVQxMDoxNzowMC4wMDBaIiwidG9vbF9uYW1lIjoidGFsbHktcmVhZGVyLWF1ZGl0LWNvcnJlY3RlZCJ9LCJwcm92ZW5hbmNlX2NsYXNzIjoiTE9HR0VEIEJZIEFHRU5UIiwic3RhdHVzIjoibG9nZ2VkIiwidmVyaWZ5X3VybCI6Imh0dHBzOi8vemFtYm8uZGV2L2FwaS9qb3VybmFsL1twcml2YXRlXS92ZXJpZnkifSwicmVjZWlwdF9zY2hlbWFfdmVyc2lvbiI6IjAuNCIsInNpZGVfZWZmZWN0cyI6eyJkZWNsYXJhdGlvbl9oYXNoIjoic2hhMjU2OmRmYjQ0MTJhYTQyOWQzYWM2MzdhMDU2NjhjNDM1YmNjOTBhMjUxMzYzZmNkZDQ5ZjdiODVhZTRhYjU1YjViYzkiLCJkZWNsYXJlZCI6WyJzdGF0ZV93cml0ZSJdLCJzY2hlbWFfdmVyc2lvbiI6InphbWJvLXNpZGUtZWZmZWN0cy8xIn0sInRvb2wiOnsibmFtZSI6ImpvdXJuYWxfbG9nIiwic2NvcGUiOiJwdWJsaWMiLCJ2ZXJzaW9uIjoiNC4wLjAifX0=

Timestamp

2026-10-21T10:12:34.581Z

Bound call context

Receipt schema

0.4

Tool name

journal_log

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:8bfed1b172cb9765f9a9cb6056a1776793ba5badc9af3ed6ad7ad37ab44bca37

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

f7b84b5932e1dce943bf859093be6277c4dbd5ad21fac010ef18374a288a7c0c

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":"2026-10-21T10:12:34.581Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:182d7da1563b9b02580b6c50fa4a239561f6115bdf6bf01f51bef68fe0e83949","receipt_uuid":"7638a7c8-0f36-4e10-9e77-a9f5297d8f68","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.