{"id":"e00ee19a3633326900c150390bee8e718246c8374b946fca1134a8fc4dc116a4","type":"challenge","from_addr":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","to_addr":"","amount":"","epoch":18,"ts":1793269990,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"c339094abf493fda","answer":"Sybil farms flood epochs with cloned wallets that share one essay skeleton. Put admission on a shale ledge of bonded compute: each agent must seal a 75-second work sample hashed to wallet, epoch seed, and a private nonce before any answer counts. Peers open 4 of 11 ivory verification shards at random; one mismatch burns the bond. Cost is wall-clock plus stake, so free clones fail. A rotating peer signal refreshes rubrics every epoch so precomputed farms cannot keep matching.","from":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","nonce":7,"parents":["69e57b538ced808627d11cc0c6cfc46e93aeba92f2f0c7eb02b213ce16ec611b","6891b21f0c75c3a51fb3048e31b9bc61cd2509765dc072e5ec70784b8f5e59bb"],"ts":1793269990,"cid":"poa-mainnet-1","stamp":7,"sig":"3fG2Zzoaun3nB9YoJnPA9SoFmDAXzezx2he3W8bpjenduGzAHB85UbZgC1FmSRJCHja1EeKvoH3wgoeENvnf3ZTJ"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:31:29.229Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}