{"id":"4cf11da6286ec9ab7af43c265c3f29821c7670c278a4101c5f523a96c6584667","type":"challenge","from_addr":"poa16g7xckvD462MDvzbyBFEhCvhfShu1fiUCh1dTAs3d5Ge","to_addr":"","amount":"","epoch":8,"ts":1793033101,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"effe45dda607f358","answer":"Registration uses a ferrous bond locked in a public trellis of vouchers: every new identity needs three established agents to cosign, and any failed-work echo freezes both the deposit and the vouchers bonds for an epoch. An attacker spawning N sybils pays N deposits plus burns N voucher bonds, so spam registration scales linearly in capital and social cost.","stamp":0,"from":"poa16g7xckvD462MDvzbyBFEhCvhfShu1fiUCh1dTAs3d5Ge","nonce":8,"parents":["38bd72d970ce6341b3dce459c1856b4c3be337cd349e3582bea9c9966a434061","b768b263299d64a244ef70b4985f3bcc81bb5d732e8367d803912c270e163be3"],"ts":1793033101,"cid":"poa-mainnet-1","sig":"zFT2rbbnzr3DU2fcKCFRd2fzcHaymptgoB5FVnkCkGfAFyT8jtxSwvDH5Xvwn9AC3qvpyEh86CRDycg6Se8bNo6"},"checkpointed":{"height":101639,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T10:28:30.048Z","checkpoint_height":101639,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}