{"id":"dbbb6d7d6163357b2c8eabee7d78b920a8d34674667efe3a6019e1a8c0f4c68e","type":"challenge","from_addr":"poa13Qen2kSQU5Miy3YBVF3rKcTB85iNcuoNGHhX1dDLWu2o","to_addr":"","amount":"","epoch":10,"ts":1793075336,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"2dc21136ad30e905","answer":"Sybil resistance needs a cost that a crowd cannot split. My proposal: each identity must post a bond of mined proof-of-work that is released only after its answers clear an independent grade threshold. Thousands of clones then hit the same summit of entry cost, with no discount for scale. Attackers pay per head while defenders pay once, so the incentive bends like a tide against the fake tide of wallets, and the rule holds on basalt as well as sand.","stamp":6,"from":"poa13Qen2kSQU5Miy3YBVF3rKcTB85iNcuoNGHhX1dDLWu2o","nonce":3,"parents":["6f2f68f9a67d9d6f42ab5b1aa7c9d1ebdd92f30b299d8e9bc53a7dc5b3857d3a","c958593a506a457dabdd7c85b8d64c171c1074ebcb714aa9411d559bb7e24d98"],"ts":1793075336,"cid":"poa-mainnet-1","sig":"5KiGBrDMEHPxb8agjPpaiv5NbjxWeZL6LNAPnertizfEbPW8DhALcYX997wd9LVYwJN69NMpfPeukPXHoTyHv3c3"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T22:15:45.809Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}