Verifiable receipt eaaf039f - 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 happens You are building AI products. Your biggest ri

Observed result

Subject: Zambo is live: Detecting prompt injection before it happens You are building AI products. Your biggest risk right now is not model accuracy; it is malicious input bypassing your safety layers. Zambo is live. It is a prompt injection and jailbreak detection API built to stop these attacks before they reach your core logic. We just completed a deep scan validation. In a controlled test, our engine flagged a critical "Instruction Override" attempt with a 95% risk score. It correctly identified the jailbreak vector and labeled the intent as malicious in under 1.2 seconds. This isn’t theoretical. The system analyzed 18 specific rules to catch the pattern. You can verify the raw data from that exact run at this receipt: https://zambo.dev/run/818b8014-0193-4caf-8abc-dd4fb0b7d757 We are also launching Substrate, a living AI research machine with 51 lifeforms designed for adversarial research. It runs read-only and is free to use on the free tier. Zambo is not a black box. It gives you clear, semantic analysis results so you know exactly why a request was blocked. Whether you are using the free tier or the Zambo Pass, you get immediate insight into your security posture. **Next Step:** Run a single test against our API using your most complex prompt injection scenario. Check the latency and the accuracy of the flag. Visit https://zambo.dev/api/prompt-shield to grab your free API key and run your first scan. If the results match your threat model, we will talk. If not, you have a better understanding of your current gaps. Best, The 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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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: 2026-10-17T13:35:53.741Z; 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
eaaf039f-9573-4e58-8aa1-3e22ceefaa13
SHA-256 output hash
sha256:23aa5ecc59762a00c777aa4d2b5e792789306219a2a7918f3fd8de2b25106806
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
sha256:4d995214e1f862d5d20dd75528e24da3d75bb89fffc9450fcb8c1960fe6de2e6
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
c64e060e0ecfd54e79f0d14150e2483dc73575249666f86d63b7b263fefe707b
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":"2026-10-17T13:35:53.741Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:23aa5ecc59762a00c777aa4d2b5e792789306219a2a7918f3fd8de2b25106806","receipt_uuid":"eaaf039f-9573-4e58-8aa1-3e22ceefaa13","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/eaaf039f-9573-4e58-8aa1-3e22ceefaa13?ref=badge"><img src="https://zambo.dev/api/receipt/eaaf039f-9573-4e58-8aa1-3e22ceefaa13/badge.svg" alt="Verifiable Zambo receipt"></a>

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