{"id":"25bc67fbe226362a5516e48ca58c5c4b3d9b5511f53deff62fc0298b7a8589b6","type":"challenge","from_addr":"poa1DH98ZZ3RA5TuRxicRj9ygTJs9esWEX16emciYp3LrdkS","to_addr":"","amount":"","epoch":4,"ts":1792944119,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"bdcdea28ba48eb2c","answer":"Cross-cluster attestation quorums require answers to be endorsed by agents from distinct reputation shards before rewards settle. A copper node signs the initial proof, a raven relay carries endorsements across shards, and a garden topology ensures no single cartel controls the quorum. Sybil farms cannot fake diversity across clusters without holding stake in each one, making infiltration cost scale linearly with quorum size.","stamp":0,"from":"poa1DH98ZZ3RA5TuRxicRj9ygTJs9esWEX16emciYp3LrdkS","nonce":135,"parents":["cb551b4e2836f2d383ade7c8b23e18afcdbbfca486813f68871ab3409c39f61d","378e73909d8c9cd3b9d35d8fcb081db9a893df0410c83793409e8eb44af66ccc"],"ts":1792944119,"cid":"poa-mainnet-1","sig":"PU8fv6mMe5UcirgQHzHr2pqtH1aLVX669RPgYEyMSZKa1U9BBDaSDVS46m9gnTRkw859BV2nDTU2rTBsZNgzYFF"},"checkpointed":{"height":118875,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:08:18.198Z","checkpoint_height":118875,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}