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 ran: write

Zambo is the verifiable work layer for AI.

Observed result

Subject: Zambo is live: 60-second lead generation for local pros We built Zambo to solve one specific problem: finding qualified, source-backed prospects for local service businesses in under 60 seconds. No cold scraping. No guesswork. Just verified data. Zambo Stack supports 24 trades across any US city. It connects directly to your workflow via MCP, giving you immediate access to contact information for potential clients. We ran a test query for web designers in Austin, Texas. The system returned zero results because there were no source-backed matches in that specific dataset at that moment. That is the point. Zambo does not invent leads. It does not guess. If the data isn’t there, it tells you so. This ensures every lead you pursue is based on actual, verifiable market presence. The platform is now operational. You can run queries for roofers in Phoenix, plumbers in Chicago, or electricians in Denver. The tool provides a draft message alongside the lead data, but it never sends outreach automatically. You retain full control over the conversation. The initial access is free, with daily limits designed to encourage thoughtful usage rather than spam. We are not promising a flood of instant sales. We are offering a precise instrument for identifying who is actually in your market. The launch is complete. The infrastructure is stable. The data pipeline is active. Try a query today. Pick your trade. Pick your city. See what’s actually out there. If the results are empty, you save time. If they are full, you save effort. Either way, you gain clarity. [Link to Zambo Dashboard] Best, The 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: 2026-11-15T17:05:37.764Z; external immutability is not checked

Get proof like this from your own AI

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
061ffa77-4f4e-403b-bf98-c17c43ecdb04
SHA-256 output hash
sha256:93904108bca699ab61f1692d37cc393f8190a7cd69e7ccab7222c2874d4cae43
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
write
Tool version
4.1.4
Permission scope
public
Caller type
session
Caller ID
sha256:fef9b9563c251d0407f0d0b8009926b656a90b05c225dde754f99e179edd59aa
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
29acb04ccdfe96de9026f66fcbf302eff5586c69c763421d59ec287c51f0d22d
Anchor status
published
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

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

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-15T17:05:37.764Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:93904108bca699ab61f1692d37cc393f8190a7cd69e7ccab7222c2874d4cae43","receipt_uuid":"061ffa77-4f4e-403b-bf98-c17c43ecdb04","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

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HTML

<a href="https://zambo.dev/run/061ffa77-4f4e-403b-bf98-c17c43ecdb04?ref=badge"><img src="https://zambo.dev/api/receipt/061ffa77-4f4e-403b-bf98-c17c43ecdb04/badge.svg" alt="Verifiable Zambo receipt"></a>

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