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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: Proof over promises in AI tooling Hi [Name], Most AI tool launches claim efficiency. Zambo launches with receipts. We built Zambo to solve a specific friction point: verifying that AI-generated outputs are actually correct, not just plausible. Our launch checks confirm two distinct capabilities are now active and documented: 1. **Semantic Integrity Scanning:** Our system runs deep semantic analysis with pattern checks. It flags critical risks like instruction overrides and prompt leaks before they become liabilities. The current status is "completed," with a latency of under 2.4 seconds. This isn’t a black box; it’s a transparent audit trail. 2. **Lead Verification:** We ran a test for prospective web design clients in Austin. The system returned zero leads. It did not invent contacts. It did not hallucinate success. It reported the truth: no source-backed leads existed at that moment. This honesty is the core of our value proposition. We provide data, not noise. You can verify both actions independently. The scan receipt is available here: [Link]. The lead signal receipt is here: [Link]. These URLs prove the execution happened and the results were unaltered. A receipt proves the bytes saved; it does not guarantee business outcomes, but it does guarantee transparency. We are not asking you to trust our word. We are asking you to check the logs. **Next Step:** If you want to see how this verification layer works on your own data stack, I can send over the technical spec for the semantic scanner. No sales pitch. Just the architecture. Let me know if you’d like the spec. 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.

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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: 2026-10-21T15:32:04.572Z; 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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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
a3177f4d-586a-4c76-a544-666ae66916c2
SHA-256 output hash
sha256:e552577269c6997c9fc5693fb189382c3a4adb0c32b8853a104eae3ccfb24570
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
sha256:9c10da8a9780a932fbf349b29855f79332c700ad193656a692997664b9113816
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
320a4c1b688a2caff1931ce1ee77b9f9ebd3b81106e09b55361f4869b0bac0bb
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":"2026-10-21T15:32:04.572Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:e552577269c6997c9fc5693fb189382c3a4adb0c32b8853a104eae3ccfb24570","receipt_uuid":"a3177f4d-586a-4c76-a544-666ae66916c2","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

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HTML

<a href="https://zambo.dev/run/a3177f4d-586a-4c76-a544-666ae66916c2?ref=badge"><img src="https://zambo.dev/api/receipt/a3177f4d-586a-4c76-a544-666ae66916c2/badge.svg" alt="Verifiable Zambo receipt"></a>

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