{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"5fcdc47f-64ad-4660-bd77-23ef0040d132","source_url":"https://zambo.dev/api/receipt/5fcdc47f-64ad-4660-bd77-23ef0040d132","receipt":{"id":"5fcdc47f-64ad-4660-bd77-23ef0040d132","created_at":"2026-10-16T02:21:47.929Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: 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PromptShield is live\n\nHi [Name],\n\nZambo just launched PromptShield, a detection API that catches prompt injection and jailbreak attempts in real time.\n\nIt’s not a filter that blocks everything, nor is it a vague \"safety\" layer. It’s a specific, technical guardrail for your LLM infrastructure.\n\n**What it does:**\nWhen a user submits a prompt, PromptShield analyzes it against a library of 18 known attack patterns. It returns a clear verdict: safe, risky, or blocked.\n\n**Why it matters now:**\nAs you deploy AI agents and chatbots, you’re exposed to users trying to overwrite system instructions, extract PII, or bypass safety policies. PromptShield sits between the user and your model. It flags malicious intent before it reaches your logic.\n\n**Key metrics from our beta:**\n*   **Latency:** ~1.1 seconds per check (deep scan mode).\n*   **Accuracy:** Detects jailbreaks, policy bypasses, and instruction overrides with high precision.\n*   **Integration:** Simple API endpoint. You send the prompt; we return the risk score and specific flagged patterns.\n\n**The Proof:**\nWe ran a test against a known jailbreak payload. The system identified the \"Instruction Override\" pattern, classified the intent as malicious, and returned a detailed breakdown of the attack vector. You can verify this via the receipt link in our docs.\n\n**Get Started:**\nWe’re offering free access to the first 20 calls per day so you can test it against your own traffic. No credit card required.\n\n1.  Create an account at [zambo.dev]\n2.  Grab your API key\n3.  Send a test prompt to the `/prompt-shield` endpoint\n\nIf it flags what you expect, you keep the API key. If it doesn’t, you lose nothing.\n\nLet’s keep your AI safe from bad actors.\n\nBest,\n\n[Your Name]\nZambo Team\n[zambo.dev]","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:28fa9a261cc8eee7851955dd5c6f90a51c480965bcc107e458d36820ac3ed69a","input_hash_layout":"zambo-json-sorted-keys-utf8-v1","free_used":0,"free_remaining":0,"free_limit":0,"signal_handle":null,"tool":{"name":"write","version":"4.0.0","scope":"public"},"caller":{"type":"session","id":"sha256:bb10d61999fe3d30a9a7c3d1de06d4b4461ee13b4828facea3623be4a0c9e5dd","label":"zambo-home-demo","label_source":"caller_reported"},"side_effects":{"declared":["none"],"schema_version":"zambo-side-effects/1","declaration_hash":"sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee"},"evidence_sha256":null,"evidence_url":null,"evidence_byte_length":null,"evidence_content_type":null,"evidence_source_url":null,"evidence_status":"no_upstream_bytes_captured","external_evidence":[],"provenance":null,"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:320c785ef8d9daa9a7752d9f19c59ebebb79b36d164ddc591aa9d678ba0ffa44","anchor":{"event_id":"567683b66e06bbf35a5b4d384c45990510f1d8b788dd2a68749d95ee9c4215ff","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"published","published_at":"2026-10-16T02:21:48.502Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-10-16T02:21:47.929Z","evidence_url":null,"receipt_uuid":"5fcdc47f-64ad-4660-bd77-23ef0040d132","output_sha256":"sha256:1f542e6c9da49de0a05d4a3937792f76dc02846b3d21eff92d34e2e18cf4b9a3","schema_version":"zambo-receipt-anchor/1","evidence_sha256":null,"evidence_byte_length":null},"envelope_bytes":"{\"anchored_at\":\"2026-10-16T02:21:47.929Z\",\"evidence_byte_length\":null,\"evidence_sha256\":null,\"evidence_url\":null,\"output_sha256\":\"sha256:1f542e6c9da49de0a05d4a3937792f76dc02846b3d21eff92d34e2e18cf4b9a3\",\"receipt_uuid\":\"5fcdc47f-64ad-4660-bd77-23ef0040d132\",\"schema_version\":\"zambo-receipt-anchor/1\"}"},"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","api_version":1,"verification_scope":"separate_sha256_commitment_and_provenance_binding_checks","checks":{"commitment_matches":{"label":"SHA-256 commitment","passed":true,"status":"pass","detail":"The exact decoded canonical bytes match the stored SHA-256 output hash."},"canonical_payload_matches":{"label":"Canonical payload reconstruction","passed":true,"status":"pass","detail":"The stored output and known call context reconstruct the exact canonical bytes."},"provenance_binding":{"label":"Provenance claim binding","status":"pass","passed":true,"detail":"The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated."},"metadata_binding":{"label":"AER-1 metadata hash","status":"pass","passed":true,"detail":"metadata_hash matches the canonical metadata block."},"signature":{"label":"Ed25519 signature (not checked)","passed":false,"status":"not_checked","detail":"No Ed25519 signature or pinned signing key was checked."},"chain":{"label":"Receipt chain (not checked)","passed":false,"status":"not_checked","detail":"No append-only receipt-chain proof was checked."},"issued_by_zambo_dev":{"label":"Issuer authentication","passed":false,"status":"not_checked","detail":"A zambo.dev receipt URL does not authenticate the issuer; no pinned signature or trusted issuer key was checked."},"immutable_log_timestamp":{"label":"Stored timestamp","passed":true,"timestamp":"2026-10-16T02:21:47.929Z","detail":"The receipt store reports 2026-10-16T02:21:47.929Z; immutability is not checked here."},"receipt_schema_version":"0.4","signature_valid":{"label":"Ed25519 signature (not checked)","passed":false,"status":"not_checked","detail":"Compatibility field only. No Ed25519 signature was checked; use API v2 checks.commitment_matches for the SHA-256 commitment."},"chain_valid":{"label":"Receipt chain (not checked)","passed":false,"status":"not_checked","detail":"This endpoint does not verify an append-only chain."}},"execution_context":{"environment":"zambo.dev hosted MCP"}},"verification_status":"verified","checks":{"commitment_matches":{"status":"pass","passed":true,"expected_hash":"sha256:1f542e6c9da49de0a05d4a3937792f76dc02846b3d21eff92d34e2e18cf4b9a3","computed_hash":"sha256:1f542e6c9da49de0a05d4a3937792f76dc02846b3d21eff92d34e2e18cf4b9a3","detail":"SHA-256 of the exact decoded canonical bytes matches output_hash."},"canonical_payload_matches":{"label":"Canonical payload reconstruction","passed":true,"status":"pass","detail":"The stored output and known call context reconstruct the exact canonical bytes."},"provenance_binding":{"label":"Provenance claim binding","status":"pass","passed":true,"detail":"The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated."},"metadata_binding":{"label":"AER-1 metadata hash","status":"pass","passed":true,"detail":"metadata_hash matches the canonical metadata block."},"issuer_authentication":{"label":"Issuer authentication","passed":false,"status":"not_checked","detail":"A zambo.dev receipt URL does not authenticate the issuer; no pinned signature or trusted issuer key was checked."},"signature":{"status":"not_checked","detail":"No Ed25519 signature or pinned signing key is supplied."},"schema":{"status":"not_checked","detail":"Schema conformance is left to the client using the linked hosted-profile schema."},"chain":{"status":"not_checked","detail":"This endpoint does not verify an append-only receipt chain."}}}