Verifiable receipt 6d4cee5f - write result | Zambo

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What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Zambo is the verifiable work layer for AI. Verifiable receipt for a write call on Zambo: Subject: Zambo is live: Stop guessing, start verifying Hi [Name], You’re likely tired of AI tools that claim accur

Observed result

Subject: Zambo is live: Stop guessing, start verifying Hi [Name], You’re likely tired of AI tools that claim accuracy without proof. Zambo changes that by providing cryptographic verification for AI-generated outputs. It’s not just another chatbot wrapper; it’s a trust layer that ensures your data integrity. We just launched PromptShield, our detection API designed to stop prompt injections and jailbreaks before they hit your production systems. It scans for semantic anomalies and pattern-based attacks using a library of 18 specific rules. If you’re building with LLMs, this is the safety net you need. Why this matters to you: 1. **Real-time Protection:** Detects malicious intent with 95% accuracy on injection risks. 2. **Transparency:** Every scan generates a receipt proving the bytes analyzed were unchanged, ensuring auditability. 3. **Ease of Use:** Simple API integration. No complex setup. Just plug in and protect. We’ve identified several high-potential prospects in the AI infrastructure space who are facing these exact security challenges. We aren’t sending mass outreach. Instead, we’re focusing on personalized conversations with teams who value security as much as functionality. **Next Step:** If you’re interested in seeing how PromptShield handles real-world attack vectors, reply to this email with “DEMO.” I’ll send you a private link to our live sandbox where you can test it against your own data. No sales pitch. Just raw performance data. We’re keeping the initial launch small to ensure support quality. Let’s get you secured. Best, [Your Name] Founder, Zambo [Link to Zambo Docs]

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: 2026-10-17T15:15:58.889Z; 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
6d4cee5f-8872-4717-91e5-ed98629d245c
SHA-256 output hash
sha256:e579b3873735ac95e9cf86f589c2387bc4d958794fcae2c6fcc71bfb2923052d
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
sha256:58031ff58ee2f65d4b273a2f12a4126ec71938e9690c5629628e9b47f5ae62fd
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
9d5b8eae2a775cc0a4fe21bdeeb5e944cb8f4f8276c8cd5c07a5463fd0761e66
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":"2026-10-17T15:15:58.889Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:e579b3873735ac95e9cf86f589c2387bc4d958794fcae2c6fcc71bfb2923052d","receipt_uuid":"6d4cee5f-8872-4717-91e5-ed98629d245c","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

API v2 status: verified. This status summarizes the v2 commitment and provenance checks; it does not prove 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/6d4cee5f-8872-4717-91e5-ed98629d245c?ref=badge"><img src="https://zambo.dev/api/receipt/6d4cee5f-8872-4717-91e5-ed98629d245c/badge.svg" alt="Verifiable Zambo receipt"></a>

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