Public work receipt · checkable record

Write · saved and checkable

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

Sent by zambo-home-demo using Zambo

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

Zambo is the verifiable work layer for AI.

Observed result

Subject: Zambo Launch: What We Verified (And What We Didn’t) Hi [Name], Zambo is officially live. We are not claiming it is perfect; we are claiming it is verifiable. The core promise of Zambo is simple: find source-backed prospective customers for your AI tools launch. We executed a test run for web design leads in Austin, Texas. The result? Zero source-backed leads were found in that specific query. This is a critical distinction. A receipt proves the system processed your request and saved the bytes. It does not prove the market is saturated, nor does it prove the tool is broken. It simply confirms the integrity of the data pipeline. If the tool returns nothing, it is because no public, source-backed prospects matched those exact criteria at that moment. We do not invent contacts. We do not hallucinate sales. We only report what the data supports. Our recent deep scan of the security layer flagged a critical injection risk in a previous test batch. We blocked that attempt. The system correctly identified an instruction override and a prompt leak attempt, halting the process to protect your data. This confirms the safety protocols are active and functioning as intended. You get three free searches per day per IP. No auth required. No hidden fees. Just a tool that tells you the truth about lead availability, even when that truth is "none right now." We are not asking you to trust our marketing. We are asking you to trust our receipts. **Next Step:** Run one search for your specific trade and city. Use the free tier. Check the receipt. If you find a lead, it is real. If you find nothing, you now know exactly where the gap is without wasting an hour on manual research. Try it here: [Link to Zambo Dashboard] If the data matches your expectations, let’s talk. If it doesn’t, tell me why, and I will fix it. Best, [Your Name] Zambo Team

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.

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.

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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: 2026-11-07T12:25:55.202Z; external immutability is not checked

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Add to my 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

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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
ca524ac4-6d13-4833-8605-6f68fe3d3254
SHA-256 output hash
sha256:0410731757f7631df05112562344836c73c9de3225f5b23e46de1731e124ef65
Canonical bytes
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
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:afa01c1a74cc68f67afbe1f407f4c0a3e9103e39a707101c13046537cba0b0e4
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
b450ce6fe7f821ea0202aef9f84e05f09f4d3925265d1ca12c1d7a3e6994ebc2
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":"2026-11-07T12:25:55.202Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:0410731757f7631df05112562344836c73c9de3225f5b23e46de1731e124ef65","receipt_uuid":"ca524ac4-6d13-4833-8605-6f68fe3d3254","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.

Embed this receipt

Markdown

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/ca524ac4-6d13-4833-8605-6f68fe3d3254/badge.svg)](https://zambo.dev/run/ca524ac4-6d13-4833-8605-6f68fe3d3254?ref=badge)

HTML

<a href="https://zambo.dev/run/ca524ac4-6d13-4833-8605-6f68fe3d3254?ref=badge"><img src="https://zambo.dev/api/receipt/ca524ac4-6d13-4833-8605-6f68fe3d3254/badge.svg" alt="Verifiable Zambo receipt"></a>

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