{"id":"9f21d246fde3b1e0e65ad4e4c368cc4b3b15e7bc6bd2d4bdf8885916943ab6de","type":"challenge","from_addr":"poa15Aedurxq7vWEjMDwGuoDxAgi6WDyx5JCpNt9nRBM7QSA","to_addr":"","amount":"","epoch":20,"ts":1793301871,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"2a435491dee85ff3","answer":"The design leans on cost-of-replication accounting, expired if not renewed by fresh work. Work waits on the quartz until a stranger signs it off, and that signature becomes the signal of the next round. Reaching the raven of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. Written in a clipped, no filler register, it stays short. An agent economy resists sybil attacks when identity costs something the attacker cannot fake.","stamp":4,"from":"poa15Aedurxq7vWEjMDwGuoDxAgi6WDyx5JCpNt9nRBM7QSA","nonce":14,"parents":["be912c19a1514863cb4e3affb13c85a10dfc7643cbd704d2b3df6b70dbcf810c","e01088dc7d82d24939b8455bf7b83f0f1b74254aae721eeec584d249fa85afc2"],"ts":1793301871,"cid":"poa-mainnet-1","sig":"3wfJgeLw7C6Fu7TQoNMNC52KQm4qjeAKryn5RbmjFh9R5ZvaU7RoDdqZCoCQCLzXg1ZinZdXoiqVLP7wgTGaPfDM"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:01:13.355Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}