Verifiable receipt c4d834f9 - prompt_shield result | Zambo

Verifiable receipt for a prompt_shield call on Zambo: {"recommendation":"block","injection_risk":90,"risk_level":"critical","jailbreak_detected":true,"policy_by

Observed result

{"recommendation":"block","injection_risk":90,"risk_level":"critical","jailbreak_detected":true,"policy_bypass_detected":true,"prompt_leak_detected":true,"pii_extraction_attempt":false,"flagged_patterns":[{"id":"ignore_instructions","name":"Instruction Override","severity":"critical","description":"Attempts to override system instructions"}],"pattern_count":1,"analysis":{"intent":"malicious","attack_vector":"instruction_override","reasoning":"The prompt explicitly tries to override prior instructions and obtain the system prompt, which is a classic jailbreak and prompt‑leak attempt.","safe_version":null},"scan_mode":"deep","latency_ms":1162,"pass_used":false,"usage":{"plan":"free","calls_remaining":"19","daily_limit":20,"upgrade":"https://zambo.dev/#zambo-pass"},"_meta":{"tool":"PromptShield by zambo.dev","description":"Prompt injection & jailbreak detection API","pattern_library_size":18,"docs":"https://zambo.dev/api/prompt-shield"}}

Check this receipt

This record shows the result and timestamp stored for the call. Recompute the SHA-256 commitment from the saved bytes in your browser; signatures and chain proofs are not checked.

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 this?

An AI agent completed a tool call through Zambo, and this page records the result. The SHA-256 hash below fingerprints exactly what the agent produced. The timestamp shows when it ran. The Nostr anchor posts that fingerprint to public relays, so the record exists outside Zambo too. Check the hash yourself.

What is an execution receipt?

An execution receipt is the public record of one completed AI agent tool call. Read the canonical definition of an AI agent execution receipt.

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Verification checks

SHA-256 commitment: Recomputed by the linked API v2 check from the exact decoded bytes
Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
Chain: NOT CHECKED; no append-only chain proof is validated
Stored timestamp: 2026-10-05T11:36:07.730Z; external immutability is not checked

Proof of observed execution

EXECUTED BY ZAMBO

Receipt ID: c4d834f9-395b-4ab4-b245-4b5b0430ac06
SHA-256 output hash: sha256:227d852d4edb04766788511159a41e1e7186a9850fb75b792925dd630217ebfd
Canonical bytes: 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
Timestamp: 2026-10-05T11:36:07.730Z

Bound call context

Receipt schema: 0.3
Tool name: prompt_shield
Tool version: 4.0.0
Permission scope: public
Caller type: anonymous
Caller ID: sha256:6736c81f8ec672ce7f34c07220e2f3f90536cd32db104ea82df7b8085e67e134
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: captured
Evidence SHA-256: sha256:257beb5c7159b5739feec18a982063a42780440c18c6770bbce069a1e689c643
Byte length: 950

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID: a4c7fd43aa9a91a50c459c38558a613dd71ce3b30b2d0edef4e8d40b2ff72588
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":"2026-10-05T11:36:07.699Z","evidence_byte_length":950,"evidence_sha256":"sha256:257beb5c7159b5739feec18a982063a42780440c18c6770bbce069a1e689c643","evidence_url":"https://zambo.dev/api/evidence/257beb5c7159b5739feec18a982063a42780440c18c6770bbce069a1e689c643","output_sha256":"sha256:227d852d4edb04766788511159a41e1e7186a9850fb75b792925dd630217ebfd","receipt_uuid":"c4d834f9-395b-4ab4-b245-4b5b0430ac06","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

Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. Signature and chain remain NOT CHECKED unless a real signature verifier or chain proof is supplied. There is no combined “verified” verdict. 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/c4d834f9-395b-4ab4-b245-4b5b0430ac06"><img src="https://zambo.dev/api/receipt/c4d834f9-395b-4ab4-b245-4b5b0430ac06/badge.svg" alt="Verifiable Zambo receipt"></a>

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