Verifiable receipt 0e29da97 - write result | Zambo

✓ 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.

Zambo is the verifiable work layer for AI. Verifiable receipt for a write call on Zambo: Subject: Zambo Launch: Critical Risk Detection That Actually Works Hi [Name], You’re likely using AI agents or LLM

Observed result

Subject: Zambo Launch: Critical Risk Detection That Actually Works Hi [Name], You’re likely using AI agents or LLMs in production right now. If you are, you know the nightmare scenario: a user inputs a prompt designed to ignore your safety guidelines, steal API keys, or leak internal system instructions. Traditional keyword filters miss these semantic attacks. Zambo solves this. Our PromptShield API analyzes every incoming prompt for deep semantic intent, not just surface-level patterns. In our recent test run, we detected a complex jailbreak attempt with 95% confidence. The system identified the "Instruction Override" pattern, classified the intent as malicious, and blocked the request before it reached your model. It flagged the specific attack vector (jailbreak) and potential PII extraction attempts instantly. This isn’t just a log entry; it’s a shield. Zambo ensures that when an AI tool processes data, it remains strictly within your defined policy boundaries. It catches the subtle phrasing changes that slip past basic regex checks. The launch package includes: * **Deep Semantic Analysis:** 18-rule pattern library for critical threats. * **Real-Time Blocking:** Stop malicious payloads at the edge. * **Transparent Receipts:** Get a verifiable URL for every scan, proving exactly what was checked and why it was flagged. I’m opening up early access to a small group of product leads who are already deploying AI tools. No sales pitch, just a direct look at the detection logic in action. **Next Step:** Reply with “ACCESS” and I’ll send you a sandbox key to test your own prompts against our engine. You’ll see the exact breakdown of how we catch what others miss. Let’s keep your AI safe. 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.

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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: 2026-10-19T09:28:09.432Z; external immutability is not checked

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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
0e29da97-58b7-4c9f-a9f8-aeb41dc588ec
SHA-256 output hash
sha256:4d4b91e749994450d42562e8ce23779bf7ca32a69f25aec2af4340d404b526ad
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:e61cd4f685d63911905f5d3ab7cbeef43ee6e629c1de1fd0c6a63b3b753abd65
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
7e2eaf6d2d551329de8dca6754e0560c23a34ac3909b107037cac32cfd4a15dd
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":"2026-10-19T09:28:09.432Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:4d4b91e749994450d42562e8ce23779bf7ca32a69f25aec2af4340d404b526ad","receipt_uuid":"0e29da97-58b7-4c9f-a9f8-aeb41dc588ec","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/0e29da97-58b7-4c9f-a9f8-aeb41dc588ec/badge.svg)](https://zambo.dev/run/0e29da97-58b7-4c9f-a9f8-aeb41dc588ec?ref=badge)

HTML

<a href="https://zambo.dev/run/0e29da97-58b7-4c9f-a9f8-aeb41dc588ec?ref=badge"><img src="https://zambo.dev/api/receipt/0e29da97-58b7-4c9f-a9f8-aeb41dc588ec/badge.svg" alt="Verifiable Zambo receipt"></a>

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