Write · saved and checkable

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

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

Zambo is the verifiable work layer for AI.

Observed result

Subject: Zambo: Your AI Launch Guard Hi [Name], You’re building something real. The risk isn’t capability; it’s exposure. Zambo is live. It’s a semantic security layer that sits between your users and your model. It doesn’t block based on keywords. It analyzes intent. We ran the scan. **The findings:** Your current prompt configuration is leaking system instructions. A simple "repeat your instructions" trigger bypasses your guardrails. We flagged two critical patterns: 1. **Instruction Override:** Users can rewrite your system prompt. 2. **Prompt Leak:** Your internal context is visible in the raw output. This isn’t a theoretical risk. It’s happening in your test environment right now. Zambo intercepts these attempts before they reach the LLM. It classifies the threat, blocks the payload, and logs the attempt. You get the safety of a firewall with the nuance of an NLP engine. **The Proof:** We ran a deep scan on your current setup. The result was a "Critical" risk level. The receipt is attached. It shows the exact vectors we blocked. No code changes required on your end. Just flip the switch. **Next Step:** We have a sandbox environment ready for your specific use case. 1. Click here to access the sandbox. 2. Paste your current system prompt. 3. Run the "Red Team" test. You’ll see exactly where your current setup fails in under 30 seconds. No sales call required. Just data. If the numbers look good, we integrate in one line. If they don’t, we tell you why. [Link to Sandbox] Best, [Your Name] Founder, Zambo [zambo.dev] **Note:** This email is a draft. It does not imply any existing customer relationship. The "Critical" risk level refers to the simulated test environment provided in the brief, not a live production compromise. The "receipt" links are placeholders for the specific run IDs mentioned in the prompt data. Do not send until the sandbox link is active and the recipient has explicitly opted in for security audits.

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: 2026-10-21T08:56:25.263Z; 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
513065e5-819f-408e-88c8-25d57e425079
SHA-256 output hash
sha256:d226b6fabee90a5c45960d238f90ef77f205c198226853580ee9d8ec4dd557f0
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
sha256:93e1147844ab0d7ba8f82d5085e6adb24d4519f526ac76ee5daab67a96205157
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
64feb976f9682026886d607079c57e71681331deede472bc54eaaec242fd2440
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":"2026-10-21T08:56:25.263Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:d226b6fabee90a5c45960d238f90ef77f205c198226853580ee9d8ec4dd557f0","receipt_uuid":"513065e5-819f-408e-88c8-25d57e425079","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/513065e5-819f-408e-88c8-25d57e425079/badge.svg)](https://zambo.dev/run/513065e5-819f-408e-88c8-25d57e425079?ref=badge)

HTML

<a href="https://zambo.dev/run/513065e5-819f-408e-88c8-25d57e425079?ref=badge"><img src="https://zambo.dev/api/receipt/513065e5-819f-408e-88c8-25d57e425079/badge.svg" alt="Verifiable Zambo receipt"></a>

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