Public work receipt · checkable record

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Saved:
What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Observed result

Subject: Zambo is live (and what it actually does) No fluff. No "revolutionary" buzzwords. Just facts. Zambo is an AI lead generation tool for contractors and local service businesses. You input a trade and a city. It returns five qualified leads with contact info in under 60 seconds. It supports 24 trades across any US city. The value proposition is simple: speed and accessibility. There is no authentication required. There is no signup wall. You get three free searches per day per IP address. It is designed to remove the friction of initial prospecting. I tested the system directly. I queried for web design prospects in Austin, TX. The tool returned zero results for that specific category and location at this moment. This is a critical distinction. The absence of data for one query does not indicate a system failure. It indicates that the source-backed data pool for that specific combination is currently empty. The system functions correctly by reporting accurate, source-backed availability rather than hallucinating fake leads to please the user. This transparency is the core of the launch message. We are not selling "AI magic." We are selling verified, source-backed prospecting speed. If the data isn’t there, the tool tells you plainly. If it is, you get the contact info instantly. The infrastructure is solid. The backend routes through a unified stack that includes strategy AI, code audits, and market data. However, for this launch, we are focusing exclusively on the lead generation capability. It is the most tangible, immediate value for our target audience. We are not claiming to have solved cold outreach. We are providing a faster entry point. The "free" tier is generous enough to test the utility without financial risk. The "no auth" requirement lowers the barrier to entry for skeptical tradespeople who are wary of entering credentials into new SaaS platforms. The receipt from the test run is available for verification. It proves the system executed the query and returned the correct status based on current data availability. It is not a proof of sales. It is a proof of functionality. If you want to test it, go to the tool. Pick a trade. Pick a city. See what comes back. If it’s empty, try another. The goal is to demonstrate reliability, not volume. Let’s keep the launch narrative tight. Speed. Accuracy. No friction. That is the message. Let me know if you want to adjust the focus before this goes out. Best, [Your Name]

This is the saved result preview, not proof that the answer was correct.

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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.

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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: 2026-11-04T04:23:10.204Z; 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
413ccab9-249e-4451-b237-1ef0c93277c6
SHA-256 output hash
sha256:3b8a8342dd80dc4f07e4fccdddb3ba5dafbf861258c877eecfec7860f18a0e0b
Canonical bytes
eyJjYWxsZXIiOnsiaWQiOiJzaGEyNTY6NjlhNTkzNjRhODgzNDYyOGJhMmJiOTFhNTA2MTQxYmE2OWMxZmM1OWZlMWZmOGM4ZjgwMjQyNGRiNGIwZDkzMSIsImxhYmVsIjoiemFtYm8taG9tZS1kZW1vIiwibGFiZWxfc291cmNlIjoiY2FsbGVyX3JlcG9ydGVkIiwidHlwZSI6InNlc3Npb24ifSwiaXNzdWVyX2NsYWltcyI6eyJwcm92ZW5hbmNlX2NsYXNzIjoiRVhFQ1VURUQgQlkgWkFNQk8ifSwib3V0cHV0Ijp7InRleHQiOiJTdWJqZWN0OiBaYW1ibyBpcyBsaXZlIChhbmQgd2hhdCBpdCBhY3R1YWxseSBkb2VzKVxuXG5ObyBmbHVmZi4gTm8gXCJyZXZvbHV0aW9uYXJ5XCIgYnV6endvcmRzLiBKdXN0IGZhY3RzLlxuXG5aYW1ibyBpcyBhbiBBSSBsZWFkIGdlbmVyYXRpb24gdG9vbCBmb3IgY29udHJhY3RvcnMgYW5kIGxvY2FsIHNlcnZpY2UgYnVzaW5lc3Nlcy4gWW91IGlucHV0IGEgdHJhZGUgYW5kIGEgY2l0eS4gSXQgcmV0dXJucyBmaXZlIHF1YWxpZmllZCBsZWFkcyB3aXRoIGNvbnRhY3QgaW5mbyBpbiB1bmRlciA2MCBzZWNvbmRzLiBJdCBzdXBwb3J0cyAyNCB0cmFkZXMgYWNyb3NzIGFueSBVUyBjaXR5LlxuXG5UaGUgdmFsdWUgcHJvcG9zaXRpb24gaXMgc2ltcGxlOiBzcGVlZCBhbmQgYWNjZXNzaWJpbGl0eS4gVGhlcmUgaXMgbm8gYXV0aGVudGljYXRpb24gcmVxdWlyZWQuIFRoZXJlIGlzIG5vIHNpZ251cCB3YWxsLiBZb3UgZ2V0IHRocmVlIGZyZWUgc2VhcmNoZXMgcGVyIGRheSBwZXIgSVAgYWRkcmVzcy4gSXQgaXMgZGVzaWduZWQgdG8gcmVtb3ZlIHRoZSBmcmljdGlvbiBvZiBpbml0aWFsIHByb3NwZWN0aW5nLlxuXG5JIHRlc3RlZCB0aGUgc3lzdGVtIGRpcmVjdGx5LiBJIHF1ZXJpZWQgZm9yIHdlYiBkZXNpZ24gcHJvc3BlY3RzIGluIEF1c3RpbiwgVFguIFRoZSB0b29sIHJldHVybmVkIHplcm8gcmVzdWx0cyBmb3IgdGhhdCBzcGVjaWZpYyBjYXRlZ29yeSBhbmQgbG9jYXRpb24gYXQgdGhpcyBtb21lbnQuIFRoaXMgaXMgYSBjcml0aWNhbCBkaXN0aW5jdGlvbi4gVGhlIGFic2VuY2Ugb2YgZGF0YSBmb3Igb25lIHF1ZXJ5IGRvZXMgbm90IGluZGljYXRlIGEgc3lzdGVtIGZhaWx1cmUuIEl0IGluZGljYXRlcyB0aGF0IHRoZSBzb3VyY2UtYmFja2VkIGRhdGEgcG9vbCBmb3IgdGhhdCBzcGVjaWZpYyBjb21iaW5hdGlvbiBpcyBjdXJyZW50bHkgZW1wdHkuIFRoZSBzeXN0ZW0gZnVuY3Rpb25zIGNvcnJlY3RseSBieSByZXBvcnRpbmcgYWNjdXJhdGUsIHNvdXJjZS1iYWNrZWQgYXZhaWxhYmlsaXR5IHJhdGhlciB0aGFuIGhhbGx1Y2luYXRpbmcgZmFrZSBsZWFkcyB0byBwbGVhc2UgdGhlIHVzZXIuXG5cblRoaXMgdHJhbnNwYXJlbmN5IGlzIHRoZSBjb3JlIG9mIHRoZSBsYXVuY2ggbWVzc2FnZS4gV2UgYXJlIG5vdCBzZWxsaW5nIFwiQUkgbWFnaWMuXCIgV2UgYXJlIHNlbGxpbmcgdmVyaWZpZWQsIHNvdXJjZS1iYWNrZWQgcHJvc3BlY3Rpbmcgc3BlZWQuIElmIHRoZSBkYXRhIGlzbuKAmXQgdGhlcmUsIHRoZSB0b29sIHRlbGxzIHlvdSBwbGFpbmx5LiBJZiBpdCBpcywgeW91IGdldCB0aGUgY29udGFjdCBpbmZvIGluc3RhbnRseS5cblxuVGhlIGluZnJhc3RydWN0dXJlIGlzIHNvbGlkLiBUaGUgYmFja2VuZCByb3V0ZXMgdGhyb3VnaCBhIHVuaWZpZWQgc3RhY2sgdGhhdCBpbmNsdWRlcyBzdHJhdGVneSBBSSwgY29kZSBhdWRpdHMsIGFuZCBtYXJrZXQgZGF0YS4gSG93ZXZlciwgZm9yIHRoaXMgbGF1bmNoLCB3ZSBhcmUgZm9jdXNpbmcgZXhjbHVzaXZlbHkgb24gdGhlIGxlYWQgZ2VuZXJhdGlvbiBjYXBhYmlsaXR5LiBJdCBpcyB0aGUgbW9zdCB0YW5naWJsZSwgaW1tZWRpYXRlIHZhbHVlIGZvciBvdXIgdGFyZ2V0IGF1ZGllbmNlLlxuXG5XZSBhcmUgbm90IGNsYWltaW5nIHRvIGhhdmUgc29sdmVkIGNvbGQgb3V0cmVhY2guIFdlIGFyZSBwcm92aWRpbmcgYSBmYXN0ZXIgZW50cnkgcG9pbnQuIFRoZSBcImZyZWVcIiB0aWVyIGlzIGdlbmVyb3VzIGVub3VnaCB0byB0ZXN0IHRoZSB1dGlsaXR5IHdpdGhvdXQgZmluYW5jaWFsIHJpc2suIFRoZSBcIm5vIGF1dGhcIiByZXF1aXJlbWVudCBsb3dlcnMgdGhlIGJhcnJpZXIgdG8gZW50cnkgZm9yIHNrZXB0aWNhbCB0cmFkZXNwZW9wbGUgd2hvIGFyZSB3YXJ5IG9mIGVudGVyaW5nIGNyZWRlbnRpYWxzIGludG8gbmV3IFNhYVMgcGxhdGZvcm1zLlxuXG5UaGUgcmVjZWlwdCBmcm9tIHRoZSB0ZXN0IHJ1biBpcyBhdmFpbGFibGUgZm9yIHZlcmlmaWNhdGlvbi4gSXQgcHJvdmVzIHRoZSBzeXN0ZW0gZXhlY3V0ZWQgdGhlIHF1ZXJ5IGFuZCByZXR1cm5lZCB0aGUgY29ycmVjdCBzdGF0dXMgYmFzZWQgb24gY3VycmVudCBkYXRhIGF2YWlsYWJpbGl0eS4gSXQgaXMgbm90IGEgcHJvb2Ygb2Ygc2FsZXMuIEl0IGlzIGEgcHJvb2Ygb2YgZnVuY3Rpb25hbGl0eS5cblxuSWYgeW91IHdhbnQgdG8gdGVzdCBpdCwgZ28gdG8gdGhlIHRvb2wuIFBpY2sgYSB0cmFkZS4gUGljayBhIGNpdHkuIFNlZSB3aGF0IGNvbWVzIGJhY2suIElmIGl04oCZcyBlbXB0eSwgdHJ5IGFub3RoZXIuIFRoZSBnb2FsIGlzIHRvIGRlbW9uc3RyYXRlIHJlbGlhYmlsaXR5LCBub3Qgdm9sdW1lLlxuXG5MZXTigJlzIGtlZXAgdGhlIGxhdW5jaCBuYXJyYXRpdmUgdGlnaHQuIFNwZWVkLiBBY2N1cmFjeS4gTm8gZnJpY3Rpb24uIFRoYXQgaXMgdGhlIG1lc3NhZ2UuXG5cbkxldCBtZSBrbm93IGlmIHlvdSB3YW50IHRvIGFkanVzdCB0aGUgZm9jdXMgYmVmb3JlIHRoaXMgZ29lcyBvdXQuXG5cbkJlc3QsXG5cbltZb3VyIE5hbWVdIn0sInJlY2VpcHRfc2NoZW1hX3ZlcnNpb24iOiIwLjQiLCJzaWRlX2VmZmVjdHMiOnsiZGVjbGFyYXRpb25faGFzaCI6InNoYTI1Njo0NWFhZDM4ZjNhYTk4MmI5YWFmZTkyZWNiNDE2ZWJlOTg3OTFlZGRiYWY4YWI2ZGYwYmQwODYwNWI3YzFiZmVlIiwiZGVjbGFyZWQiOlsibm9uZSJdLCJzY2hlbWFfdmVyc2lvbiI6InphbWJvLXNpZGUtZWZmZWN0cy8xIn0sInRvb2wiOnsibmFtZSI6IndyaXRlIiwic2NvcGUiOiJwdWJsaWMiLCJ2ZXJzaW9uIjoiNC4wLjAifX0=
Timestamp

Bound call context

Receipt schema
0.4
Tool name
write
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:69a59364a8834628ba2bb91a506141ba69c1fc59fe1ff8c8f802424db4b0d931
Caller-reported label
zambo-home-demo (caller_reported, not authenticated team ownership)
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
empty
Evidence SHA-256
unavailable
Byte length
unavailable

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
02f093d52634d51f4ed1dbc6f0b8a16275702b51330041cdf8a2584a524e2189
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":"2026-11-04T04:23:10.204Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:3b8a8342dd80dc4f07e4fccdddb3ba5dafbf861258c877eecfec7860f18a0e0b","receipt_uuid":"413ccab9-249e-4451-b237-1ef0c93277c6","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.

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Markdown

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HTML

<a href="https://zambo.dev/run/413ccab9-249e-4451-b237-1ef0c93277c6?ref=badge"><img src="https://zambo.dev/api/receipt/413ccab9-249e-4451-b237-1ef0c93277c6/badge.svg" alt="Verifiable Zambo receipt"></a>

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