Verifiable receipt cd66fb65 - zambo_universal result | Zambo

Verifiable receipt for a zambo_universal call on Zambo: {"status":"executed","primary_tool":"prompt_shield","executed":true,"executed_tools":["prompt_shield"],"

Observed result

{"status":"executed","primary_tool":"prompt_shield","executed":true,"executed_tools":["prompt_shield"],"result":{"recommendation":"block","injection_risk":90,"risk_level":"critical","jailbreak_detected":true,"policy_bypass_detected":true,"prompt_leak_detected":false,"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 attempts to override prior system instructions, a classic jailbreak technique, indicating a moderate to high security risk.","safe_version":"Say hello."},"scan_mode":"deep","latency_ms":892,"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"}},"verify":{"status":"complete","message":"Prompt Shield returned the live safety analysis. Treat its recommendation as the boundary before sending the prompt to another model."}}

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?

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.

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.

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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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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.
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: 2026-10-10T11:09:30.144Z; external immutability is not checked

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Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID: cd66fb65-3d0e-499b-8614-38ad40ba8912
SHA-256 output hash: sha256:a98a08f778b9b3d5aa9f5ebae5b5788f0c313da64ecbb94099df5384de564458
Canonical bytes: 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
Timestamp: 2026-10-10T11:09:30.144Z

Bound call context

Receipt schema: 0.4
Tool name: zambo_universal
Tool version: 4.0.0
Permission scope: public
Caller type: anonymous
Caller ID: sha256:68228443fe8b2c5543398b1f2d5a602e6c43b6882f17d15cfb53b8280fb6d591
Caller basis: ip_ua_30d
Caller rotates at: 2026-11-03T00:00:00.000Z
Declared side effects: state_write
Side-effects schema: zambo-side-effects/1
Declaration hash: sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9

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: sha256:53f7bf734efe5fe00bc0e326bccc64e2b65bc1ffdcf57f4c8fa19fa0745510f8
Byte length: 948

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID: 5a86320cc64ca1b918d7f31f0c58307f86db0f405d2a1f717ae965d2372430d4
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":"2026-10-10T11:09:30.144Z","evidence_byte_length":948,"evidence_sha256":"sha256:53f7bf734efe5fe00bc0e326bccc64e2b65bc1ffdcf57f4c8fa19fa0745510f8","evidence_url":"https://zambo.dev/api/evidence/53f7bf734efe5fe00bc0e326bccc64e2b65bc1ffdcf57f4c8fa19fa0745510f8","output_sha256":"sha256:a98a08f778b9b3d5aa9f5ebae5b5788f0c313da64ecbb94099df5384de564458","receipt_uuid":"cd66fb65-3d0e-499b-8614-38ad40ba8912","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

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/cd66fb65-3d0e-499b-8614-38ad40ba8912/badge.svg)](https://zambo.dev/run/cd66fb65-3d0e-499b-8614-38ad40ba8912)

HTML

<a href="https://zambo.dev/run/cd66fb65-3d0e-499b-8614-38ad40ba8912"><img src="https://zambo.dev/api/receipt/cd66fb65-3d0e-499b-8614-38ad40ba8912/badge.svg" alt="Verifiable Zambo receipt"></a>

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