{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"eb9eccb3-c495-4294-9272-cf2dd3810050","source_url":"https://zambo.dev/api/receipt/eb9eccb3-c495-4294-9272-cf2dd3810050","receipt":{"id":"eb9eccb3-c495-4294-9272-cf2dd3810050","created_at":"2026-10-25T15:28:48.251Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: zambo_check","tools":["zambo_check"],"steps":[{"tool":"zambo_check","status":"success","started_at":"2026-10-25T15:28:48.119Z","completed_at":"2026-10-25T15:28:48.251Z"}],"output_hash":"sha256:4c2ff5ba8a3cb4fb58d6297132f029dcb277dc1eae3c642f50ee981c11173e63","hash_algorithm":"sha256","canonical_bytes":"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","canonical_bytes_withheld_for_privacy":false,"canonical_byte_length":2455,"verification_status":"verified","session_trail":[],"result_preview":"{\"status\":\"incomplete\",\"confidence\":\"low\",\"reason\":\"A truth claim needs source evidence and a verification method; neither was sufficient here.\",\"evidence\":[{\"id\":\"http_907756951215\",\"kind\":\"http_observation\",\"source\":\"https://zambo.dev/.well-known/agent-card.json\",\"observed\":\"Public endpoint responded with HTTP 200.\",\"scope\":\"reachability, response metadata, and content hash\",\"fetched_at\":\"2026-10-25T15:28:48.155Z\",\"http_status\":200,\"content_type\":\"application/json; charset=utf-8\",\"sha256\":\"422b151d2b3b80d3bf965a753c0fe8560a37d0da181cef337a475747f61d64b5\"}],\"assertion_state\":{\"claimed\":false,\"observed\":true,\"verified\":false,\"scope\":\"not independently verified\"},\"freshness\":{\"checked_at\":\"2026-10-25T15:28:48.199Z\",\"source_count\":1,\"newest_source_at\":\"2026-10-25T15:28:48.155Z\"},\"conflicts\":[],\"risk\":{\"level\":\"low\",\"side_effects\":false,\"reversible\":\"[private]\",\"approval_required\":false,\"reasons\":[]},\"provenance\":{\"method\":\"deterministic observations plus caller-supplied context\",\"sources\":[\"https://zambo.dev/.well-known/agent-card.json\"],\"limitations\":[\"A reachable source is not proof that its claims are true.\",\"Caller-supplied claimed/verified fields are not independently authenticated.\"]},\"recommended_action\":\"verify_more\",\"next_action\":\"verify\",\"proof\":{\"type\":\"integrity_hash\",\"hash\":\"e407c2d21cf26b02b07b61e25cc2649511e7ac152b437c1396cf1871f2b5db4c\",\"recorded_at\":\"2026-10-25T15:28:48.199Z\",\"scope\":\"integrity of this check response and its observed evidence; not a universal truth certificate\",\"independently_verifiable\":false,\"note\":\"This hash is not a persisted proof certificate. Use the dedicated proof capability only when a durable certificate is explicitly requested.\"},\"next_capability\":\"zambo_check\",\"zambo\":{\"capability\":\"zambo_check\",\"next_capability\":\"zambo_check\",\"mcp_available\":true},\"meta\":{\"check_type\":\"truth\",\"latency_ms\":44,\"tool_calls\":0,\"upstream_latency_ms\":44,\"cache_hit\":false,\"free_limit\":\"20/day/IP\"}}","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:dafebafe3f13214ac08f1cf2bc5db28061562a2650ce52a6c7a23c0dd4811f4b","input_hash_layout":"zambo-json-sorted-keys-utf8-v1","free_used":1,"free_remaining":19,"free_limit":20,"signal_handle":null,"tool":{"name":"zambo_check","version":"4.0.0","scope":"public"},"caller":{"type":"anonymous","id":"sha256:4b47b6676189f71d308c2d5f7112e9206914a2ee028d95b7708bf351036cf489","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:e7e65e9022bdc6057577c8ef3a0bdd3e2383a2572f03a3c49bd01eda3ad10487","evidence_url":"/api/evidence/e7e65e9022bdc6057577c8ef3a0bdd3e2383a2572f03a3c49bd01eda3ad10487","evidence_byte_length":1976,"evidence_content_type":"application/json","evidence_source_url":null,"evidence_status":"captured","external_evidence":[],"provenance":null,"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:cdb926b4984e1258105b90877e30ba5568ff5fbd5057411d9b3f191db27d4198","anchor":{"event_id":"4e84376b397794dd99af0f3705b8fbf8d90dd5c5c4dac0fcbcf0f931a9113aac","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-10-25T15:28:48.812Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-10-25T15:28:48.251Z","evidence_url":"https://zambo.dev/api/evidence/e7e65e9022bdc6057577c8ef3a0bdd3e2383a2572f03a3c49bd01eda3ad10487","receipt_uuid":"eb9eccb3-c495-4294-9272-cf2dd3810050","output_sha256":"sha256:4c2ff5ba8a3cb4fb58d6297132f029dcb277dc1eae3c642f50ee981c11173e63","schema_version":"zambo-receipt-anchor/1","evidence_sha256":"sha256:e7e65e9022bdc6057577c8ef3a0bdd3e2383a2572f03a3c49bd01eda3ad10487","evidence_byte_length":1976},"envelope_bytes":"{\"anchored_at\":\"2026-10-25T15:28:48.251Z\",\"evidence_byte_length\":1976,\"evidence_sha256\":\"sha256:e7e65e9022bdc6057577c8ef3a0bdd3e2383a2572f03a3c49bd01eda3ad10487\",\"evidence_url\":\"https://zambo.dev/api/evidence/e7e65e9022bdc6057577c8ef3a0bdd3e2383a2572f03a3c49bd01eda3ad10487\",\"output_sha256\":\"sha256:4c2ff5ba8a3cb4fb58d6297132f029dcb277dc1eae3c642f50ee981c11173e63\",\"receipt_uuid\":\"eb9eccb3-c495-4294-9272-cf2dd3810050\",\"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":"2026-10-25T15:28:48.251Z","detail":"The receipt store reports 2026-10-25T15:28:48.251Z; 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":"sha256:4c2ff5ba8a3cb4fb58d6297132f029dcb277dc1eae3c642f50ee981c11173e63","computed_hash":"sha256:4c2ff5ba8a3cb4fb58d6297132f029dcb277dc1eae3c642f50ee981c11173e63","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."}}}