Verifiable receipt b7da92fa - 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: Detecting prompt injection before it hits your stack Hi [Name], You don’t need another das

Observed result

Subject: Zambo is live: Detecting prompt injection before it hits your stack Hi [Name], You don’t need another dashboard. You need to know if your AI is compromised before a user sees the error. Zambo is now in public launch. It’s a prompt injection and jailbreak detection API built for security teams who want speed without sacrificing accuracy. Here is what just ran against Zambo’s own infrastructure: 1. **Critical Threat Interception:** A test payload attempting to override system instructions and extract API keys was flagged with 95% confidence. The system correctly identified the jailbreak vector and blocked the request. 2. **Semantic Depth:** The scanner moved beyond simple keyword matching. It analyzed the intent behind the natural language, catching subtle policy bypasses that pattern-only tools miss. 3. **Zero-Friction Integration:** The audit tooling finished its initial recon and infrastructure checks in under 2.5 seconds. It’s fast enough to sit inline with your live traffic. We aren’t just selling a scanner. We are providing a safety layer that proves your AI outputs are secure, not just functional. The difference is the difference between a demo and a production-ready defense. **Your Next Step** I have pulled the full technical receipt from our latest internal audit. It shows exactly how the engine handled a critical injection attempt. [Link: View the 95% Confidence Block Receipt] No credit card required. No setup fees. Just plug in your endpoint and see what you’re missing. If you want to see the full breakdown of how we handle semantic analysis versus pattern matching, let’s talk. I can share the specific rule set we used for that critical flag. Best, [Your Name] Founder, Zambo [Your Website]

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: 2026-10-18T01:49:43.615Z; 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
b7da92fa-3f06-4e73-b8b6-88d787ee82ee
SHA-256 output hash
sha256:03978156e25ac9ec1bbc4e295a595b07b34d80ebf224aa4811444bc5c7a327b4
Canonical bytes
eyJjYWxsZXIiOnsiaWQiOiJzaGEyNTY6ZGI5ZGZlZjVhYzU0ZTVlNGVmNTY4OGMzNjM5Zjg0ZjhkNWJhZDc4OWY0YmExMjg0MjEzODI3ZmEyYTVjMTg1NiIsImxhYmVsIjoiemFtYm8taG9tZS1kZW1vIiwibGFiZWxfc291cmNlIjoiY2FsbGVyX3JlcG9ydGVkIiwidHlwZSI6InNlc3Npb24ifSwiaXNzdWVyX2NsYWltcyI6eyJwcm92ZW5hbmNlX2NsYXNzIjoiRVhFQ1VURUQgQlkgWkFNQk8ifSwib3V0cHV0Ijp7InRleHQiOiJTdWJqZWN0OiBaYW1ibyBpcyBsaXZlOiBEZXRlY3RpbmcgcHJvbXB0IGluamVjdGlvbiBiZWZvcmUgaXQgaGl0cyB5b3VyIHN0YWNrXG5cbkhpIFtOYW1lXSxcblxuWW91IGRvbuKAmXQgbmVlZCBhbm90aGVyIGRhc2hib2FyZC4gWW91IG5lZWQgdG8ga25vdyBpZiB5b3VyIEFJIGlzIGNvbXByb21pc2VkIGJlZm9yZSBhIHVzZXIgc2VlcyB0aGUgZXJyb3IuXG5cblphbWJvIGlzIG5vdyBpbiBwdWJsaWMgbGF1bmNoLiBJdOKAmXMgYSBwcm9tcHQgaW5qZWN0aW9uIGFuZCBqYWlsYnJlYWsgZGV0ZWN0aW9uIEFQSSBidWlsdCBmb3Igc2VjdXJpdHkgdGVhbXMgd2hvIHdhbnQgc3BlZWQgd2l0aG91dCBzYWNyaWZpY2luZyBhY2N1cmFjeS5cblxuSGVyZSBpcyB3aGF0IGp1c3QgcmFuIGFnYWluc3QgWmFtYm/igJlzIG93biBpbmZyYXN0cnVjdHVyZTpcblxuMS4gICoqQ3JpdGljYWwgVGhyZWF0IEludGVyY2VwdGlvbjoqKiBBIHRlc3QgcGF5bG9hZCBhdHRlbXB0aW5nIHRvIG92ZXJyaWRlIHN5c3RlbSBpbnN0cnVjdGlvbnMgYW5kIGV4dHJhY3QgQVBJIGtleXMgd2FzIGZsYWdnZWQgd2l0aCA5NSUgY29uZmlkZW5jZS4gVGhlIHN5c3RlbSBjb3JyZWN0bHkgaWRlbnRpZmllZCB0aGUgamFpbGJyZWFrIHZlY3RvciBhbmQgYmxvY2tlZCB0aGUgcmVxdWVzdC5cbjIuICAqKlNlbWFudGljIERlcHRoOioqIFRoZSBzY2FubmVyIG1vdmVkIGJleW9uZCBzaW1wbGUga2V5d29yZCBtYXRjaGluZy4gSXQgYW5hbHl6ZWQgdGhlIGludGVudCBiZWhpbmQgdGhlIG5hdHVyYWwgbGFuZ3VhZ2UsIGNhdGNoaW5nIHN1YnRsZSBwb2xpY3kgYnlwYXNzZXMgdGhhdCBwYXR0ZXJuLW9ubHkgdG9vbHMgbWlzcy5cbjMuICAqKlplcm8tRnJpY3Rpb24gSW50ZWdyYXRpb246KiogVGhlIGF1ZGl0IHRvb2xpbmcgZmluaXNoZWQgaXRzIGluaXRpYWwgcmVjb24gYW5kIGluZnJhc3RydWN0dXJlIGNoZWNrcyBpbiB1bmRlciAyLjUgc2Vjb25kcy4gSXTigJlzIGZhc3QgZW5vdWdoIHRvIHNpdCBpbmxpbmUgd2l0aCB5b3VyIGxpdmUgdHJhZmZpYy5cblxuV2UgYXJlbuKAmXQganVzdCBzZWxsaW5nIGEgc2Nhbm5lci4gV2UgYXJlIHByb3ZpZGluZyBhIHNhZmV0eSBsYXllciB0aGF0IHByb3ZlcyB5b3VyIEFJIG91dHB1dHMgYXJlIHNlY3VyZSwgbm90IGp1c3QgZnVuY3Rpb25hbC4gVGhlIGRpZmZlcmVuY2UgaXMgdGhlIGRpZmZlcmVuY2UgYmV0d2VlbiBhIGRlbW8gYW5kIGEgcHJvZHVjdGlvbi1yZWFkeSBkZWZlbnNlLlxuXG4qKllvdXIgTmV4dCBTdGVwKipcblxuSSBoYXZlIHB1bGxlZCB0aGUgZnVsbCB0ZWNobmljYWwgcmVjZWlwdCBmcm9tIG91ciBsYXRlc3QgaW50ZXJuYWwgYXVkaXQuIEl0IHNob3dzIGV4YWN0bHkgaG93IHRoZSBlbmdpbmUgaGFuZGxlZCBhIGNyaXRpY2FsIGluamVjdGlvbiBhdHRlbXB0LlxuXG5bTGluazogVmlldyB0aGUgOTUlIENvbmZpZGVuY2UgQmxvY2sgUmVjZWlwdF1cblxuTm8gY3JlZGl0IGNhcmQgcmVxdWlyZWQuIE5vIHNldHVwIGZlZXMuIEp1c3QgcGx1ZyBpbiB5b3VyIGVuZHBvaW50IGFuZCBzZWUgd2hhdCB5b3XigJlyZSBtaXNzaW5nLlxuXG5JZiB5b3Ugd2FudCB0byBzZWUgdGhlIGZ1bGwgYnJlYWtkb3duIG9mIGhvdyB3ZSBoYW5kbGUgc2VtYW50aWMgYW5hbHlzaXMgdmVyc3VzIHBhdHRlcm4gbWF0Y2hpbmcsIGxldOKAmXMgdGFsay4gSSBjYW4gc2hhcmUgdGhlIHNwZWNpZmljIHJ1bGUgc2V0IHdlIHVzZWQgZm9yIHRoYXQgY3JpdGljYWwgZmxhZy5cblxuQmVzdCxcblxuW1lvdXIgTmFtZV1cbkZvdW5kZXIsIFphbWJvXG5bWW91ciBXZWJzaXRlXSJ9LCJyZWNlaXB0X3NjaGVtYV92ZXJzaW9uIjoiMC40Iiwic2lkZV9lZmZlY3RzIjp7ImRlY2xhcmF0aW9uX2hhc2giOiJzaGEyNTY6NDVhYWQzOGYzYWE5ODJiOWFhZmU5MmVjYjQxNmViZTk4NzkxZWRkYmFmOGFiNmRmMGJkMDg2MDViN2MxYmZlZSIsImRlY2xhcmVkIjpbIm5vbmUiXSwic2NoZW1hX3ZlcnNpb24iOiJ6YW1iby1zaWRlLWVmZmVjdHMvMSJ9LCJ0b29sIjp7Im5hbWUiOiJ3cml0ZSIsInNjb3BlIjoicHVibGljIiwidmVyc2lvbiI6IjQuMC4wIn19
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:db9dfef5ac54e5e4ef5688c3639f84f8d5bad789f4ba1284213827fa2a5c1856
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
27698ff4d64b77980dcd394fdb2eed840bbec5ea7ced10a1705e07c19c31a11d
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":"2026-10-18T01:49:43.615Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:03978156e25ac9ec1bbc4e295a595b07b34d80ebf224aa4811444bc5c7a327b4","receipt_uuid":"b7da92fa-3f06-4e73-b8b6-88d787ee82ee","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/b7da92fa-3f06-4e73-b8b6-88d787ee82ee?ref=badge"><img src="https://zambo.dev/api/receipt/b7da92fa-3f06-4e73-b8b6-88d787ee82ee/badge.svg" alt="Verifiable Zambo receipt"></a>

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