{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"2e4a1a3b-94d0-4110-b396-08e8dba81f18","source_url":"https://zambo.dev/api/receipt/2e4a1a3b-94d0-4110-b396-08e8dba81f18","receipt":{"id":"2e4a1a3b-94d0-4110-b396-08e8dba81f18","created_at":"2026-11-01T03:00:13.436Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: zambo_compare","tools":["zambo_compare"],"steps":[{"tool":"zambo_compare","status":"success","started_at":"2026-11-01T03:00:12.505Z","completed_at":"2026-11-01T03:00:13.436Z"}],"output_hash":"sha256:1fb87b5089a6521388bae19bdeee3d00d4937da072deca3d38564a0f2778eb0b","hash_algorithm":"sha256","canonical_bytes":"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","canonical_bytes_withheld_for_privacy":false,"canonical_byte_length":2261,"verification_status":"verified","session_trail":[],"result_preview":"{\"status\":\"comparison_ready\",\"comparison\":{\"a\":\"Claude\",\"b\":\"GPT-4\",\"dimensions\":[{\"label\":\"Accuracy & Factuality\",\"a_score\":8,\"b_score\":9,\"note\":\"GPT-4 shows slightly higher recall on recent events due to newer training data.\"},{\"label\":\"Responsiveness & Latency\",\"a_score\":7,\"b_score\":8,\"note\":\"GPT-4 typically responds faster on large deployments, though both are competitive.\"},{\"label\":\"Safety & Content Moderation\",\"a_score\":9,\"b_score\":8,\"note\":\"Claude has a stronger default safety filter, reducing hallucinations in regulated contexts.\"},{\"label\":\"Versatility & Multimodality\",\"a_score\":6,\"b_score\":8,\"note\":\"GPT-4 supports image, audio, and code more seamlessly, while Claude focuses on text.\"},{\"label\":\"Integration & Ecosystem\",\"a_score\":7,\"b_score\":9,\"note\":\"GPT-4 has broader API adoption, plugins, and community support.\"}],\"winner\":\"GPT-4\",\"winner_reason\":\"GPT-4 leads overall in knowledge depth, multimodality, and ecosystem reach, making it the most versatile choice for most use cases.\",\"best_for_a\":\"Highly regulated industries needing strict safety compliance, e.g., healthcare or finance, where Claude’s stronger moderation reduces policy violations.\",\"best_for_b\":\"Complex content generation, code synthesis, and tasks requiring up-to-date knowledge, where GPT-4’s advanced language model excels.\",\"verdict\":\"GPT-4 generally outperforms Claude on breadth and speed, but Claude’s safety engine gives it an edge in highly regulated environments. Claude’s integration is improving, yet GPT-4’s ecosystem remains far larger. Both are strong, but GPT-4 is the safer bet for most applications.\",\"confidence\":\"HIGH\"},\"share_tip\":\"Call zambo_share to create a public card for this comparison — great for sharing with your team.\"}","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:6e78e001e1b77805434f0a27f10c047868b5c07c1cb74709b98c16a8b159481c","input_hash_layout":"zambo-json-sorted-keys-utf8-v1","free_used":0,"free_remaining":0,"free_limit":0,"signal_handle":null,"tool":{"name":"zambo_compare","version":"4.0.0","scope":"public"},"caller":{"type":"anonymous","id":"sha256:831c0b63a8e508a6e53738c083ac40181438af8f6d1b1be7ea56ff0cfa7668a9","basis":"ip_ua_30d","rotates_at":"2026-11-03T00:00:00.000Z"},"side_effects":{"declared":["none"],"schema_version":"zambo-side-effects/1","declaration_hash":"sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee"},"evidence_sha256":"sha256:5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0","evidence_url":"/api/evidence/5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0","evidence_byte_length":1625,"evidence_content_type":"application/json","evidence_source_url":null,"evidence_status":"ok","result_source":null,"evidence_source":"localhost","external_evidence":[],"provenance":{"result_source":null,"evidence_source":"localhost","evidence_status":"ok","evidence_captures":[{"sha256":"sha256:5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0","source":"localhost","capture_role":"primary","evidence_status":"ok"}]},"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:b642a68ac694b96a84d308f851b573ad36eb1cd035e3b9240ca71c340550a86c","anchor":{"event_id":"9b307b0b7134b6cb6de725ce1a5a841bbb8f3eafbd8804c626098d4b700644bb","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-11-01T03:00:14.977Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-11-01T03:00:13.436Z","evidence_url":"https://zambo.dev/api/evidence/5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0","receipt_uuid":"2e4a1a3b-94d0-4110-b396-08e8dba81f18","output_sha256":"sha256:1fb87b5089a6521388bae19bdeee3d00d4937da072deca3d38564a0f2778eb0b","schema_version":"zambo-receipt-anchor/1","evidence_sha256":"sha256:5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0","evidence_byte_length":1625},"envelope_bytes":"{\"anchored_at\":\"2026-11-01T03:00:13.436Z\",\"evidence_byte_length\":1625,\"evidence_sha256\":\"sha256:5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0\",\"evidence_url\":\"https://zambo.dev/api/evidence/5f3f54b6afbfc51d328763d690dc8a1975ec505279e59a3d63a9ac9c2527c4e0\",\"output_sha256\":\"sha256:1fb87b5089a6521388bae19bdeee3d00d4937da072deca3d38564a0f2778eb0b\",\"receipt_uuid\":\"2e4a1a3b-94d0-4110-b396-08e8dba81f18\",\"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":"2026-11-01T03:00:13.436Z","detail":"The receipt store reports 2026-11-01T03:00:13.436Z; 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":"ok","verification_status":"verified","checks":{"commitment_matches":{"status":"pass","passed":true,"expected_hash":"sha256:1fb87b5089a6521388bae19bdeee3d00d4937da072deca3d38564a0f2778eb0b","computed_hash":"sha256:1fb87b5089a6521388bae19bdeee3d00d4937da072deca3d38564a0f2778eb0b","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."}}}