Verifiable receipt aa4c634c - 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: PromptShield is live: Critical jailbreak detection in 1.3s** The gap between a prompt injection attempt

Observed result

**Subject: PromptShield is live: Critical jailbreak detection in 1.3s** The gap between a prompt injection attempt and a blocked response used to be a security risk. It is now a measurable metric. PromptShield is live. This API scans incoming prompts for semantic manipulation, pattern-based jailbreaks, and policy bypasses using an 18-rule library. It does not guess; it classifies. In our latest validation run, PromptShield identified a high-risk attempt labeled "Instruction Override." The system flagged the specific attack vector, assessed the risk as critical, and provided a safe, sanitized response version—all within 1,306 milliseconds. The receipt confirms the exact bytes processed and the decision logic applied. No ambiguity. No human-in-the-loop latency for the initial block. This is not a beta. It is a production-ready tool for any team building AI interfaces that must withstand adversarial inputs. **Next Step:** Review the detailed analysis from the attached validation receipt to see exactly how the detection engine parsed the malicious intent. [View Validation Receipt](https://zambo.dev/run/2d733591-5b51-4b48-858c-da14cdedac3a) If you are deploying AI tools that process user input, reply with "Demo" and I will walk you through the integration specs. 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.

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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: 2026-10-17T20:22:30.869Z; external immutability is not checked

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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"}}}

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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
aa4c634c-6d16-4430-adee-3979155449c8
SHA-256 output hash
sha256:456cabf003e5798e88dbbe2b4292aec2530dc9529045e60d809796df1b5ac792
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:bb50c6630ccfdca2fc5ba17c3fa13aff7dd14d1c6c84ca39c7346b1e9bcc0f6f
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
93dac307fcc32f0f1c367d03722cb0ea5b086f1fbfdf177b7bfb3e716b84a11f
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":"2026-10-17T20:22:30.869Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:456cabf003e5798e88dbbe2b4292aec2530dc9529045e60d809796df1b5ac792","receipt_uuid":"aa4c634c-6d16-4430-adee-3979155449c8","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.

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