{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"1cbfece5-0edc-4413-97bd-8a94c690468e","source_url":"https://zambo.dev/api/receipt/1cbfece5-0edc-4413-97bd-8a94c690468e","receipt":{"id":"1cbfece5-0edc-4413-97bd-8a94c690468e","created_at":"2026-11-11T08:19:22.644Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: 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Zambo is live: 60-second lead research, zero cold outreach**\n\nHi [Name],\n\nYou asked for source-backed prospects, not invented names. Zambo just launched, and it delivers exactly that.\n\nLeadSignal, our core tool, scans public data to find qualified leads for local service businesses. Give it a trade and a city, and in under 60 seconds, you get five verified contacts. It supports 24 trades across any US city.\n\nHere is the reality check from our initial testing:\n\n*   **Accuracy over volume:** We ran a search for web designers in Austin, TX. The result was zero source-backed leads. That is the correct answer. We do not fabricate contacts to inflate your pipeline. If the data isn’t there, we tell you.\n*   **No ghostwriting:** The tool returns research and draft messages. It does not send outreach. You retain full control over who you contact and what you say.\n*   **Source-backed only:** Every lead comes with a receipt. You can verify the data points. No anonymous scraping, no stale CRM dumps.\n\nThe free tier gives you three searches per day per IP. No auth required. No credit card. Just fast, verifiable research that respects your time and your reputation.\n\nWe built this because \"cold calling\" is dead, but warm, verified research is scarce. Zambo bridges that gap. It turns hours of manual prospecting into a 60-second workflow.\n\nWant to see if it works for your niche?\n\n**Pick a trade and a city.** Run the search. Check the receipts. If the leads look fake, we messed up. If they look solid, you have a head start.\n\n[Button: Try LeadSignal Free]\n\nBest,\n\nThe Zambo Team\n\nP.S. We are strict about data integrity. A receipt proves the saved bytes match the source; it doesn’t guarantee the lead will buy, but it guarantees they exist.","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:52b38045d75dcea1d166da8784412e618a1b593de0e4ea978cad43a68a18d743","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":"4.1.0","scope":"public"},"caller":{"type":"session","id":"sha256:37f5fa2ad386a376a2f750b47b62d5ee1b5c5314abbd7475eb4dbd323c801836","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":"sha256:21cad2b34c701bc22ea6ceab92024835954509a81bceed6754a72b02960abe75","anchor":{"event_id":"d4ff186d09092403b0fc69eb8bbd679f271783fe034421120507680c433590c7","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.primal.net"],"status":"failed","published_at":null,"retry":{"state":"scheduled","interval_seconds":960,"last_attempt_at":"2026-11-11T08:35:20.201Z","next_attempt_at":"2026-11-11T08:51:20.201Z","expected_completion":"No guaranteed ETA; relay acknowledgement is external."},"schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-11-11T08:19:22.644Z","evidence_url":null,"receipt_uuid":"1cbfece5-0edc-4413-97bd-8a94c690468e","output_sha256":"sha256:5eb1fa576cab19aefd90352c4874cc5ae4cdd75b6a154488991b87a1dec1652a","schema_version":"zambo-receipt-anchor/1","evidence_sha256":null,"evidence_byte_length":null},"envelope_bytes":"{\"anchored_at\":\"2026-11-11T08:19:22.644Z\",\"evidence_byte_length\":null,\"evidence_sha256\":null,\"evidence_url\":null,\"output_sha256\":\"sha256:5eb1fa576cab19aefd90352c4874cc5ae4cdd75b6a154488991b87a1dec1652a\",\"receipt_uuid\":\"1cbfece5-0edc-4413-97bd-8a94c690468e\",\"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":"2026-11-11T08:19:22.644Z","detail":"The receipt store reports 2026-11-11T08:19:22.644Z; 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:db6bd24a29d67dad85dfaeeb0a32fab676e8cad4a60e624e49f918f48afbe813"}}},"evidence_status":"empty","verification_status":"verified","checks":{"commitment_matches":{"status":"pass","passed":true,"expected_hash":"sha256:5eb1fa576cab19aefd90352c4874cc5ae4cdd75b6a154488991b87a1dec1652a","computed_hash":"sha256:5eb1fa576cab19aefd90352c4874cc5ae4cdd75b6a154488991b87a1dec1652a","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."}}}