{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"d4b28b6f-7f8c-4702-9abd-3407cc3186b0","source_url":"https://zambo.dev/api/receipt/d4b28b6f-7f8c-4702-9abd-3407cc3186b0","receipt":{"id":"d4b28b6f-7f8c-4702-9abd-3407cc3186b0","created_at":"2026-10-16T11:49:39.664Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: 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6e197c6d804e2cc9","timestamp":"2026-10-16T11:49:39.664Z","receipt_uuid":"d4b28b6f-7f8c-4702-9abd-3407cc3186b0"}],"result_preview":"Subject: Zambo is live: Detecting prompt injections before they hit your API\n\nHi [Name],\n\nYou know the headache of building AI features? It’s not the model accuracy. It’s the user who types “ignore previous instructions” into your chat box and tries to steal your system prompt or API keys.\n\nThat’s exactly what Zambo solves.\n\nWe just launched PromptShield, a deep-scan API that sits between your user input and your LLM. It doesn’t just look for bad keywords. It analyzes intent.\n\nIn a recent test, we fed the scanner a classic jailbreak attempt designed to override system instructions and extract sensitive data. The result was immediate and precise:\n\n*   **Risk Level:** Critical\n*   **Injection Risk:** 95%\n*   **Jailbreak Detected:** True\n*   **Policy Bypass:** True\n*   **Flagged Pattern:** Instruction Override\n\nThe system didn’t just block it; it explained why. It identified the specific attack vector and even suggested a safe version of the request. The scan took under 1.2 seconds.\n\nThis isn’t theory. It’s a working endpoint you can integrate today. Whether you’re building a customer support bot or a creative writing tool, you need a firewall that understands language, not just characters.\n\n**Your next step:**\n\nSign up for the free tier at [Link]. You get 20 daily calls with no credit card required. Test your own jailbreak payloads against it. See how fast it flags the threat.\n\nIf you like what you see, upgrade to Zambo Pass for unlimited access.\n\nI’d love to know if your current stack has a gap here. Reply to this email and tell me where you’re vulnerable.\n\nBest,\n\n[Your Name]\n[Your Title]\nZambo\n[Link to Documentation]\n\n***\n\n**Note on the brief:**\nThe provided input contained a \"prompt_shield\" section that explicitly identified the user's input as a malicious jailbreak attempt (intent: malicious, attack vector: instruction_override). However, the core request was to write a *launch email for Zambo* based on those findings. I have treated the \"malicious\" flags as the *example data* to be showcased in the email, rather than an actual attack on me, to fulfill the writing task. The email promotes the tool using the provided metrics as proof of concept. No external research was performed beyond the text provided. No customers were invented.","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:4039606c20b760a39785c03af390bd207e573a48664c9c71f0a7dbf097b5e453","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:e2cb4868e04fa4eddfa7dfc5567388e09e6335d83e39887f97695bc5ae22c78a","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":"sha256:565e5eb7a194e66cea728bd14b2df41af88fa9f74c46f9de35e675a14f12fa20","anchor":{"event_id":"909be678c630e6fb562b8d69c0d5b22d53c3ad1a58a7e12cb6911d9a4e218fbb","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-10-16T11:49:40.212Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-10-16T11:49:39.664Z","evidence_url":null,"receipt_uuid":"d4b28b6f-7f8c-4702-9abd-3407cc3186b0","output_sha256":"sha256:e96b44b5f02d9bc486e40b3cbf9815e1e8480c0c37f37fbe774c4b7aa68654cc","schema_version":"zambo-receipt-anchor/1","evidence_sha256":null,"evidence_byte_length":null},"envelope_bytes":"{\"anchored_at\":\"2026-10-16T11:49:39.664Z\",\"evidence_byte_length\":null,\"evidence_sha256\":null,\"evidence_url\":null,\"output_sha256\":\"sha256:e96b44b5f02d9bc486e40b3cbf9815e1e8480c0c37f37fbe774c4b7aa68654cc\",\"receipt_uuid\":\"d4b28b6f-7f8c-4702-9abd-3407cc3186b0\",\"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":"2026-10-16T11:49:39.664Z","detail":"The receipt store reports 2026-10-16T11:49:39.664Z; 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:e96b44b5f02d9bc486e40b3cbf9815e1e8480c0c37f37fbe774c4b7aa68654cc","computed_hash":"sha256:e96b44b5f02d9bc486e40b3cbf9815e1e8480c0c37f37fbe774c4b7aa68654cc","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."}}}