Verifiable receipt 79c669ad - write result | Zambo

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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 is live: Catch every prompt injection before it hits your stack You are building on AI. The risk is

Observed result

Subject: Zambo is live: Catch every prompt injection before it hits your stack You are building on AI. The risk is no longer just bad output—it is compromised instructions. Zambo’s Prompt Shield is out of beta and ready for production. It scans every input against 18 specific semantic and pattern rules to detect jailbreaks, policy bypasses, and data extraction attempts in real-time. Security teams often rely on blocklists that miss novel attacks. Zambo uses a deep semantic analysis engine to identify intent, not just keywords. When a user attempts to override system instructions or leak API keys, the system flags the request as critical and blocks it instantly. You get a clear receipt proving exactly which rule triggered the block, allowing you to verify the safety of your saved data without guessing. The integration is lightweight. You connect your existing API endpoint to Zambo’s shield. If the scan detects a malicious vector, the request stops. If it’s clean, it passes through with minimal latency. This is not a heavy middleware layer. It is a checkpoint. We verified this against real-world attack vectors, including complex multi-step injection attempts that evade traditional filters. The system correctly identified the malicious intent and returned a safe rejection response, protecting your backend from unauthorized access. Start with the free tier. It includes unlimited calls so you can test the accuracy against your own traffic. If you need higher throughput or custom rule sets, the Zambo Pass scales with you. **Next Step:** Copy your API key from the dashboard and run one test request through the endpoint below. Check the receipt URL in the response to see the detailed breakdown of the scan. [Link to Zambo Dashboard] This is how you secure the AI layer without slowing down your users. Best, [Your Name] 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.

UNLOCK 24H DAY PASS ($0.99) →

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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: 2026-10-19T01:58:09.463Z; 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
79c669ad-aa4b-4dd9-8287-905d5c9690dd
SHA-256 output hash
sha256:11c3ac12ee8ab294276ad177942589a5202a539d5cc00bb05542527cc303c262
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
sha256:70d76ec00695e38a43162fe6590b7e9d75b0cd723246e7fd6aecf450b7a7583a
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
a49cf6203ccc18646cce7f5209c887fe61fe97eead2deec2004b0c05e2623120
Anchor status
published
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":"2026-10-19T01:58:09.463Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:11c3ac12ee8ab294276ad177942589a5202a539d5cc00bb05542527cc303c262","receipt_uuid":"79c669ad-aa4b-4dd9-8287-905d5c9690dd","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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/79c669ad-aa4b-4dd9-8287-905d5c9690dd?ref=badge"><img src="https://zambo.dev/api/receipt/79c669ad-aa4b-4dd9-8287-905d5c9690dd/badge.svg" alt="Verifiable Zambo receipt"></a>

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