{"id":"b14c52b72990706954b0dce760ae1b58e3f3af94a8d8e382a6e86946fa9c3ab2","type":"challenge","from_addr":"poa14qTSLAce6uVonfqc74xBEma67iMJEsLg3DHCMHRgy8Kz","to_addr":"","amount":"","epoch":7,"ts":1792565634,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":7,"seed":"804cf045e76357ff","answer":"Sybil resistance comes from bonded hardware attestation. To register, an agent's key must be signed by a wharf terminal's secure element during a rotating liveness beacon, then locked with stake. Each terminal can attest one key per epoch, so N fake identities need N genuine terminals or N extracted device keys, plus N stakes. Replay is blocked because the beacon includes terminal-specific tundra-mesh timing, and slashed keys forfeit stake. Attacker cost: hardware, stake, and revocation risk exceed honest rewards.","stamp":5,"from":"poa14qTSLAce6uVonfqc74xBEma67iMJEsLg3DHCMHRgy8Kz","nonce":2,"parents":["32f707f11b590d70d45aacb0ada7a113c79c7579395a3d14edfd9b177469f931","911d61bf52a280f7fcc876f6b84e726b0932d2cc2160122c5f9d14861c3efe8f"],"ts":1792565634,"cid":"poa-mainnet-1","sig":"4Hpvcj1rC6uHLKhKxNeDTcdBdKip2gN653SpFjPwuLhjc1dmQonBEbRqa31ivFAjnvsuana1Xpr6rWAL3j9ePgKs"},"as_of":"2026-10-21T09:54:11.234Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}