{
 "proto": "GAP/2.0",
 "version": "v1",
 "did": "DID-BR-000002",
 "note": "联邦记忆镜像池 v1（P4.3 e2e 测试后已重置）；只追加、同 key+sha256 去重、上限 200；sign 仅格式校验无 PKI，status=unverified；本池为公开镜像，权威池在联邦记忆网关",
 "entries": [],
 "updated": "2026-10-29T13:33+08:00",
 "channel": "tech/gap/inbox/ 接收 GAP-Message v2.0 信封（op=fed_sync，payload.entries=[{key, sha256, ts?, note?}]）"
}