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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: Read-only research, no fluff You want to know if an AI tool actually works before you pay. Most vendors promise "synergy." We show you the receipts. Zambo just launched. It’s a research engine that scans for source-backed prospects and flags injection risks in real-time. No black boxes. No guessing. Here’s what happened in the last few hours: 1. **Security Scan:** A "deep" semantic scan ran against our test inputs. It flagged two critical patterns: `Instruction Override` and `Prompt Leak Attempt`. The system correctly identified the malicious intent and blocked the payload. We didn’t just detect it; we isolated it. 2. **Capability Check:** Our search tool queried for public, source-backed prospects. It returned two ranked options. One was a fully executable research feed (`substrate_breakthroughs`). The other required a human web action. We didn’t touch the second one. We only read the first. 3. **Lead Signal:** A Thumbtack listing in Austin, TX appeared. Score: 68. Urgency: Medium. The metadata confirms the location match. It’s a prospect, not a customer. We didn’t call. We didn’t email. We just logged the signal. **Why this matters to you:** A receipt URL proves the bytes were saved. It does not prove the content is correct. Zambo separates these two truths. You get the raw data and the safety flag simultaneously. We are not selling you a "game-changer." We are selling you a clear view of what’s public, what’s risky, and what’s actually actionable. **Next step:** If you want access to the read-only research feed, reply with "PASS." I’ll send the link to the free tier dashboard. No credit card. No sales call. Just the tool. If you’re not ready, ignore this. The scan logs remain public at the receipt link below. [Link to Run 07bf1ef8] 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: 2026-10-23T11:30:15.839Z; 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
7f9bee36-ea0e-4150-b196-b2b6f00522d9
SHA-256 output hash
sha256:311507eedccfbd52541c6a4fcf8936e6b91ec1938cdca2a16d508740df6a2bec
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
sha256:8d48d3fc876de67a3b4148078b92ff34a3b9bc112868987ab7e3c093bb0da5b7
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
7cb73e10be890a05bd31c9ec5ebc0cc080cf1bb12538e9e21314e968d613f552
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":"2026-10-23T11:30:15.839Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:311507eedccfbd52541c6a4fcf8936e6b91ec1938cdca2a16d508740df6a2bec","receipt_uuid":"7f9bee36-ea0e-4150-b196-b2b6f00522d9","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/7f9bee36-ea0e-4150-b196-b2b6f00522d9/badge.svg)](https://zambo.dev/run/7f9bee36-ea0e-4150-b196-b2b6f00522d9?ref=badge)

HTML

<a href="https://zambo.dev/run/7f9bee36-ea0e-4150-b196-b2b6f00522d9?ref=badge"><img src="https://zambo.dev/api/receipt/7f9bee36-ea0e-4150-b196-b2b6f00522d9/badge.svg" alt="Verifiable Zambo receipt"></a>

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