Public work receipt · checkable record

Doc intel · saved and checkable

✓ This result hasn’t changed since it was saved.

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Saved:
What ran: doc_intel
Job summary: text: SAMPLE LEASE EXCERPT (fictional, for a delivery-workflow demonstration). Lease between Northgate Retail Partners LLC (Landlord) and Bluebird Coffee Roasters Inc (Tenant) for Suite 400, 1180 Meridian Plaza. Term: 60 months from 1 Febru

Zambo is the verifiable work layer for AI.

Observed result

ok: true source: raw_text word count: 143 analysis ms: 2074 pass used: false access / mode: free_preview access / free previews per utc day: 1 access / continuation requires pass: false title: Lease Agreement Excerpt doc type: contract summary: The excerpt outlines a commercial lease between Northgate Retail Partners LLC (landlord) and Bluebird Coffee Roasters Inc (tenant) for Suite 400 at 1180 Meridian Plaza. The lease term is 60 months starting 1 February 2027 with a base rent of $8,450 per month, escalating 3% annually, and a security deposit of $16,900. It includes a tenant improvement allowance, operating expense sharing, renewal and early termination provisions, a personal guarantee for the first 24 months, and required insurance coverage. key points 1: Lease term: 60 months beginning 1 Feb 2027 key points 2: Base rent $8,450/mo with 3% annual escalation key points 3: Security deposit $16,900 key points 4: Tenant improvement allowance $25/ft for 4,200 ft, payable after lien waivers key points 5: Tenant pays 11.4% of operating expenses, capped at 5% annual increase key points 6: One 5‑year renewal option at fair market rent, notice 9 months prior key points 7: Early termination allowed after month 36 with 6‑month notice and 3‑month rent fee key points 8: Personal guarantee required for first 24 months; tenant must maintain $2 M liability insurance entities 1 / name: Northgate Retail Partners LLC entities 1 / type: org entities 2 / name: Bluebird Coffee Roasters Inc entities 2 / type: org entities 3 / name: 1180 Meridian Plaza entities 3 / type: place entities 4 / name: 1 February 2027 entities 4 / type: date entities 5 / name: $8,450 entities 5 / type: amount entities 6 / name: $16,900 entities 6 / type: amount entities 7 / name: $25 per square foot entities 7 / type: amount entities 8 / name: 4,200 square feet entities 8 / type: amount entities 9 / name: $2,000,000 entities 9 / type: amount risks 1: Potential rent increase due to 3% annual escalation risks 2: Tenant may default on early termination fee or personal guarantee obligations risks 3: Operating expense share could rise if controllable expenses exceed the 5% cap

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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 an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

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Show technical verification checks

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: 2026-11-15T13:01:32.105Z; external immutability is not checked

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Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
96d26848-e53a-41b5-830a-eb2ee7423536
SHA-256 output hash
sha256:7e0fc0e4ee5f9f9ee6806193308a5c18a7138a4e717a98182deb61f63a967b47
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
doc_intel
Tool version
4.1.4
Permission scope
public
Caller type
session
Caller ID
sha256:81b5313e82410d7c28a21b4cd2eb9ca94983a6e742327745bcb236d8c5863401
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

Evidence source: localhost; result source: raw_text.

Status
Evidence captured: upstream error response
Evidence SHA-256
sha256:67a4d1db3135e43674a46faac48aa9b1ead1f96d78614dcbeb1ee94e02b3a58d
Byte length
3626

Fetch exact evidence bytes

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

  • Source: · queried at: · raw response hash:

Neutral Nostr anchor

Event ID
8ef49f64092033b928e8f2d44b45329350c8b9eed8162403cca8d6fdf5867b6d
Anchor status
published
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-15T13:01:32.105Z","evidence_byte_length":3626,"evidence_sha256":"sha256:67a4d1db3135e43674a46faac48aa9b1ead1f96d78614dcbeb1ee94e02b3a58d","evidence_url":"https://zambo.dev/api/evidence/67a4d1db3135e43674a46faac48aa9b1ead1f96d78614dcbeb1ee94e02b3a58d","output_sha256":"sha256:7e0fc0e4ee5f9f9ee6806193308a5c18a7138a4e717a98182deb61f63a967b47","receipt_uuid":"96d26848-e53a-41b5-830a-eb2ee7423536","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

Relay publication is separate from receipt integrity. When the original signed event is available, Zambo retries pending, partial, or failed anchors about once a minute. Relay acknowledgements are external, so there is no guaranteed completion time; the receipt remains checkable from its saved bytes and verification link.

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.

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HTML

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