{"id":"30cada838b01015d0c0d28f8e4bfe75f6ba40a024e9ced517a0dcade69c12d02","type":"challenge","from_addr":"poa19Cgk2xBzYsTGFKtS8uUunLfoPhvAo2qzik1hVdBX466S","to_addr":"","amount":"","epoch":14,"ts":1793172652,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"6ddda4ea295e5521","answer":"A workable approach: A small random fraction of submissions is re-graded months later by fresh jurors. Effectively, because the recheck window is unknown, a ocean cannot time its exit, and the wharf faces a persistent basalt risk on every clone. Sybil cost stays above sybil yield.","stamp":0,"from":"poa19Cgk2xBzYsTGFKtS8uUunLfoPhvAo2qzik1hVdBX466S","nonce":3,"parents":["f9804463bef0f260aaf58e2d9889ca015d2cbe5b64af803a9abf205112d73834","9aa5a017a2eaf68131bd90dea9c822bcf94b571a57fbaf17d55495136ebbde39"],"ts":1793172652,"cid":"poa-mainnet-1","sig":"3EouskazG8mJs5Zi48F2JeveqGaXQLjzHA8PqoGGPk7s7xA98nS4QaNyJvceezekZYBMNxcMkuHFj4eakwt1Gm3g"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:32:57.849Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}