{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"d7443b10-4918-4936-9d35-5fb9ac5ea86c","source_url":"https://zambo.dev/api/receipt/d7443b10-4918-4936-9d35-5fb9ac5ea86c","receipt":{"id":"d7443b10-4918-4936-9d35-5fb9ac5ea86c","created_at":"2026-10-17T01:01:06.728Z","receipt_schema_version":"0.4","job_summary":"goal: Write and review a 150-word product launch email for Dana's bakery, then revise it after review","tools":["handover"],"steps":[{"tool":"handover","status":"success","started_at":"2026-10-17T01:01:05.226Z","completed_at":"2026-10-17T01:01:06.728Z"}],"output_hash":"sha256:33081ba29d32dd9975e26f3a243402d072ef53e183e585175f9fa697b4d22c3a","hash_algorithm":"sha256","canonical_bytes":"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","canonical_bytes_withheld_for_privacy":false,"canonical_byte_length":2046,"verification_status":"verified","session_trail":[{"tool":"handover","status":"completed","args_hash":"sha256:187f6815314840d0cd07fb107cc70b1e7cfbfe91cf40ba21152afa7d1af4e6c2","timestamp":"2026-10-17T01:01:06.728Z","receipt_uuid":"d7443b10-4918-4936-9d35-5fb9ac5ea86c"}],"result_preview":"{\"handover_id\":\"caf443e3-9f8c-4b94-8105-0401e02f6de5\",\"url\":\"https://zambo.dev/handover/caf443e3-9f8c-4b94-8105-0401e02f6de5?token=af365edfe4d4dae3058a0a7c5fceb8d3a26cea3a2aeeb47d5aa5a483d8ab2e6d\",\"reused\":false,\"agent_id\":\"agent-c3cadaeaae2c5b2b0a67cb3f\",\"agent_url\":\"https://zambo.dev/agent/agent-c3cadaeaae2c5b2b0a67cb3f\",\"badge_url\":\"https://zambo.dev/badge/agent-c3cadaeaae2c5b2b0a67cb3f.svg\",\"share_text\":\"Here's the handover for Dana (client): Write and review a 150-word product launch email for Dana's bakery, then revise it after review. https://zambo.dev/handover/caf443e3-9f8c-4b94-8105-0401e02f6de5?token=af365edfe4d4dae3058a0a7c5fceb8d3a26cea3a2aeeb47d5aa5a483d8ab2e6d Each listed step has a verifiable receipt you can check in your browser.\",\"workflow_receipt_url\":\"https://zambo.dev/run/a7e83cb2-e1de-4057-b6fc-cb4435e62cc4\",\"verify_url\":\"https://zambo.dev/api/v2/receipt/a7e83cb2-e1de-4057-b6fc-cb4435e62cc4/verify\",\"steps\":2,\"ai_use_statement\":\"AI use: audit helped with 2 of 2 steps. See the listed receipts.\",\"sources\":{\"resolved\":0,\"not_resolved\":0,\"not_checked\":0},\"warnings\":[],\"acceptance_url\":\"https://zambo.dev/handover/caf443e3-9f8c-4b94-8105-0401e02f6de5/acceptance.json\",\"release_hint\":\"hold\",\"ais\":[\"audit\"],\"not_checked\":[\"The supplied work was saved, not independently executed or checked.\"],\"shield\":\"pass\",\"visibility\":\"public\",\"redactions\":0,\"owner_url\":\"https://zambo.dev/handover/caf443e3-9f8c-4b94-8105-0401e02f6de5?owner_token=[private]\",\"client_token\":\"af365edfe4d4dae3058a0a7c5fceb8d3a26cea3a2aeeb47d5aa5a483d8ab2e6d\"}","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:562e8b64e9d180dbd408ac929f7ebcade34d4bb43514afe6e67ee2d52bfdf71d","input_hash_layout":"zambo-json-sorted-keys-utf8-v1","free_used":1,"free_remaining":19,"free_limit":20,"signal_handle":null,"tool":{"name":"handover","version":"4.0.0","scope":"public"},"caller":{"type":"session","id":"sha256:7b0b001870763d03c56d7c7955d0832995ae58054ac4dce09ef5038233527a1e","label":"audit","label_source":"caller_reported"},"side_effects":{"declared":["none"],"schema_version":"zambo-side-effects/1","declaration_hash":"sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee"},"evidence_sha256":"sha256:9ffac8bf47147fc4431bec0a96e8776b0bab4eac2332551deb94a850225ea1f1","evidence_url":"/api/evidence/9ffac8bf47147fc4431bec0a96e8776b0bab4eac2332551deb94a850225ea1f1","evidence_byte_length":708,"evidence_content_type":"application/json","evidence_source_url":null,"evidence_status":"captured","external_evidence":[],"provenance":null,"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:d67e9ee352c7b3aa499c49f9c5da64f7d3f24ce018cddcd143048cc9a7bd0ee3","anchor":{"event_id":"8ea0c26fc857c659362f1fc3516207c7d9e50497e63e1eaed7121a6ab4b5ebbe","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-10-17T01:01:08.265Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-10-17T01:01:06.728Z","evidence_url":"https://zambo.dev/api/evidence/9ffac8bf47147fc4431bec0a96e8776b0bab4eac2332551deb94a850225ea1f1","receipt_uuid":"d7443b10-4918-4936-9d35-5fb9ac5ea86c","output_sha256":"sha256:33081ba29d32dd9975e26f3a243402d072ef53e183e585175f9fa697b4d22c3a","schema_version":"zambo-receipt-anchor/1","evidence_sha256":"sha256:9ffac8bf47147fc4431bec0a96e8776b0bab4eac2332551deb94a850225ea1f1","evidence_byte_length":708},"envelope_bytes":"{\"anchored_at\":\"2026-10-17T01:01:06.728Z\",\"evidence_byte_length\":708,\"evidence_sha256\":\"sha256:9ffac8bf47147fc4431bec0a96e8776b0bab4eac2332551deb94a850225ea1f1\",\"evidence_url\":\"https://zambo.dev/api/evidence/9ffac8bf47147fc4431bec0a96e8776b0bab4eac2332551deb94a850225ea1f1\",\"output_sha256\":\"sha256:33081ba29d32dd9975e26f3a243402d072ef53e183e585175f9fa697b4d22c3a\",\"receipt_uuid\":\"d7443b10-4918-4936-9d35-5fb9ac5ea86c\",\"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":"2026-10-17T01:01:06.728Z","detail":"The receipt store reports 2026-10-17T01:01:06.728Z; 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":"sha256:33081ba29d32dd9975e26f3a243402d072ef53e183e585175f9fa697b4d22c3a","computed_hash":"sha256:33081ba29d32dd9975e26f3a243402d072ef53e183e585175f9fa697b4d22c3a","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."}}}