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✓ 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 is live Hi [Name], Zambo has launched. It is a research and workflow utility designed to verify AI outputs and manage lead generation tasks without manual overhead. I am reaching out because you operate in the Austin web design space. During initial testing, our LeadSignal tool executed a search for web design prospects in Austin, TX. The system returned zero source-backed leads for that specific query. This confirms the tool works as intended: it runs the search, checks quotas, and reports the absence of data rather than inventing contacts. It provides a verifiable receipt for every action, proving exactly what bytes were processed and what results were returned. For prospects like you, the value is in the audit trail. You can run these checks, see the exact execution path, and confirm that no data was fabricated. The tool currently supports two primary workflows: `substrate_breakthroughs` for AI research feeds and `leadsignal` for targeted prospect discovery. Both are read-only, free on the current tier, and provide cryptographic receipts for every run. I want to give you access to test this against your own workflows. **CTA:** Reply with “test” and I will send you a direct link to run a single LeadSignal query on your own niche. You will see the raw output, the quota status, and the receipt URL. No commitment, no sales call. Just a look at the data. Zambo is built for teams who need proof of process, not just promises. Best, [Your Name] [Your Title] Zambo

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.

UNLOCK 24H DAY PASS ($0.99) →

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Or re-run this exact call, using the same tool and arguments.

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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: 2026-10-21T19:42:43.681Z; 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

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
03fede99-66b2-4374-9824-59565c7a2e7a
SHA-256 output hash
sha256:83799699919b059eee2ef90e16ccb937935be6ad161118955787fbcf45d981d7
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
sha256:70c69413bc6031678312d85782d1b84698c62a5b3b01049865a6bdf324a8be48
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
no_upstream_bytes_captured
Evidence SHA-256
unavailable
Byte length
unavailable

Neutral Nostr anchor

Event ID
a0862bbb7e09717812bcd4ef46f466faacffa106e414e49c095770719e7b8bc9
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":"2026-10-21T19:42:43.681Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:83799699919b059eee2ef90e16ccb937935be6ad161118955787fbcf45d981d7","receipt_uuid":"03fede99-66b2-4374-9824-59565c7a2e7a","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/03fede99-66b2-4374-9824-59565c7a2e7a/badge.svg)](https://zambo.dev/run/03fede99-66b2-4374-9824-59565c7a2e7a?ref=badge)

HTML

<a href="https://zambo.dev/run/03fede99-66b2-4374-9824-59565c7a2e7a?ref=badge"><img src="https://zambo.dev/api/receipt/03fede99-66b2-4374-9824-59565c7a2e7a/badge.svg" alt="Verifiable Zambo receipt"></a>

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