dc3095a2d5
- internal/provenance: 全链路存证(送审/审核/发码/转码/入库/注入)+责任界定 - service: Provenance/Accountability(定位首次哈希变化节点)/CopyrightEvidence/MatchInfringement - api: /content/provenance, /accountability, /evidence, /infringe-match - 转码版哈希不误判为篡改; 感知哈希侵权比对分级(high/medium) - 11项新测试通过; 端到端: 审播一致判定+证据链+侵权命中