{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"b4286cb1-1472-4f6c-b1d6-8160f0aafebd","source_url":"https://zambo.dev/api/receipt/b4286cb1-1472-4f6c-b1d6-8160f0aafebd","receipt":{"id":"b4286cb1-1472-4f6c-b1d6-8160f0aafebd","created_at":"2026-11-02T15:25:41.437Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: 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Zambo is live: 60-second lead generation for local trades\n\nHi [Name],\n\nZambo just crossed the finish line. It’s built specifically for contractors and local service businesses who need qualified leads without the bloat of enterprise sales software.\n\nThe core premise is simple: provide a trade and a city, and get five qualified leads with contact info in under 60 seconds. We support 24 trades across any US city.\n\nWe tested this during the launch phase. When querying for web design leads in Austin, the system correctly identified that no source-backed leads were available at that moment. This is by design. We prioritize accuracy over volume. A receipt proving unchanged saved bytes is not a guarantee of correctness, but it is a guarantee of integrity. The system flags empty results rather than padding the list with unverified data.\n\nThis approach creates a clean, low-friction entry point. There is no authentication required. No API key. No signup wall. You get three free searches per day per IP address. That’s enough to validate the data quality for your specific niche and geography before you commit to anything.\n\nThe underlying infrastructure supports a broader stack of tools, including strategy AI and market data, but the lead generation module stands on its own. It is free, fast, and transparent.\n\nI’d like you to test it against your current pipeline. Pick a trade you serve and a city where you are actively bidding. Run the search. Check the timestamps and source links.\n\nIf the data matches your local market reality, keep using the free tier. If it feels too limited, let’s talk about scaling.\n\nYou can access the tool here: [Link to Zambo Lead Signal]\n\nThere is no pressure and no sales call attached to this email. Just a tool that works as advertised.\n\nBest,\n\n[Your Name]\n[Your Title]\nZambo","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:81a7bc192c37ffa197f0f1b899fcb78542650b9fe1f450e9c80d205de75a25ff","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:eae1d5382f389e60fae2fa0e55e243a113df3ec03048856399f08e315b74fc08","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":"empty","result_source":null,"evidence_source":null,"external_evidence":[],"provenance":{"result_source":null,"evidence_source":null,"evidence_status":"empty","evidence_captures":[]},"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:cd18893511f1b2627a23fb9d3d29f57616b9c7a1743e594403245d11e32e23d2","anchor":{"event_id":"29858042ed393a0bb03e9577324fcb736c4a82fea0d21ed005c13f4a1adfc10a","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-11-02T15:25:41.996Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-11-02T15:25:41.437Z","evidence_url":null,"receipt_uuid":"b4286cb1-1472-4f6c-b1d6-8160f0aafebd","output_sha256":"sha256:bd88b85a2ad7129b6c83541319af631e1ff1eeae2b9389f051ee7615d1dd7424","schema_version":"zambo-receipt-anchor/1","evidence_sha256":null,"evidence_byte_length":null},"envelope_bytes":"{\"anchored_at\":\"2026-11-02T15:25:41.437Z\",\"evidence_byte_length\":null,\"evidence_sha256\":null,\"evidence_url\":null,\"output_sha256\":\"sha256:bd88b85a2ad7129b6c83541319af631e1ff1eeae2b9389f051ee7615d1dd7424\",\"receipt_uuid\":\"b4286cb1-1472-4f6c-b1d6-8160f0aafebd\",\"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":"2026-11-02T15:25:41.437Z","detail":"The receipt store reports 2026-11-02T15:25:41.437Z; 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","quota_identity":{"meter_key":"sha256:83c00aba0072741e848cf7467072aa73d2f2c77fb579da729712cfee38498235"}}},"evidence_status":"empty","verification_status":"verified","checks":{"commitment_matches":{"status":"pass","passed":true,"expected_hash":"sha256:bd88b85a2ad7129b6c83541319af631e1ff1eeae2b9389f051ee7615d1dd7424","computed_hash":"sha256:bd88b85a2ad7129b6c83541319af631e1ff1eeae2b9389f051ee7615d1dd7424","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."}}}