Public work receipt · checkable record
Doc intel · saved and checkable
✓ This result hasn’t changed since it was saved.
Sent using Zambo
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
This is the saved result preview, not proof that the answer was correct.
Check this receipt
This page shows the result and when it was saved. Use the receipt checker to see whether the saved result has changed.
Show technical provenance details
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.
Keep the work moving
This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.
Or re-run this exact call, using the same tool and arguments.
Share this receipt
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
Get proof like this from your own AI
Get receipts for your own AI work: add zambo.dev/mcp
One URL, no key. Copy the line for your AI and add it yourself in its settings.
- ClaudeSettings, Connectors, Add custom connector, paste the URL.
https://zambo.dev/mcp - ChatGPTSettings, Apps and Connectors, developer mode, create a connector with this URL.
https://zambo.dev/mcp - GrokAdd a remote MCP server in your Grok client and paste the URL.
https://zambo.dev/mcp - CursorPaste into ~/.cursor/mcp.json.
{"mcpServers":{"zambo":{"url":"https://zambo.dev/mcp"}}}
Nothing is installed automatically. Full setup guides
Want a verifiable receipt for every job your bots do?
Add Zambo Receipt Bot to your team · File this in Receipt Bot
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
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.
Embed this receipt
Markdown
[](https://zambo.dev/run/96d26848-e53a-41b5-830a-eb2ee7423536?ref=badge)
HTML
<a href="https://zambo.dev/run/96d26848-e53a-41b5-830a-eb2ee7423536?ref=badge"><img src="https://zambo.dev/api/receipt/96d26848-e53a-41b5-830a-eb2ee7423536/badge.svg" alt="Verifiable Zambo receipt"></a>
Recent receipts
138,925 verifiable receipts minted
Get your own: connect https://zambo.dev/mcp. Free daily calls, no API key.
Open the interactive receipt view
Your AI's work could look like this
Run a first job free in Zambo Chat. No account needed.