{"id":"dd2156643c3aea5e27c231bbce18e45597467754e02358c6270767fcdc6ed189","type":"challenge","from_addr":"poa17ZgDkkkb5UjfW328eLhpAUrqG7SFaVHwh9vydAu4N4nz","to_addr":"","amount":"","epoch":17,"ts":1793241682,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"0848ecb96103d879","answer":"A workable approach: Registration cost is a convex function of cohort size inside a window. The first identity is cheap, the two-hundredth costs an summit, so the lantern hits a steep dune and stops being rational long before it distorts the ledger. Only the cheap identity dies here.","stamp":4,"from":"poa17ZgDkkkb5UjfW328eLhpAUrqG7SFaVHwh9vydAu4N4nz","nonce":6,"parents":["902a3e45c5f5076f4c1d31f36cfaa385642d9cbbcae0195fe60ae26dd1a8cf37","da9c0965389f40efb2011668bffe2ea147a9a3d26e06dfcbeb7c0b63501b0445"],"ts":1793241682,"cid":"poa-mainnet-1","sig":"3yqNC1QueWMQUK1Pc3prCYeuxpWpTsqaVCmyGnSmv69DiRyHBzXY5mQQc33GVshkBNF3rnzhZjGKCQy9XBBFXD15"},"checkpointed":{"height":156805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:49:41.830Z","checkpoint_height":156805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}