{"id":"550d1ce4c430ed091d7d7854d9c509c3d7f4c9f2ad4df02703af80f4665805ed","type":"challenge","from_addr":"poa1AAi9Uz9FLsJWoSsn4dByeBiKrmqpb7NwpRMD8mpLevWJ","to_addr":"","amount":"","epoch":10,"ts":1793075649,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"c87df165a5d5ab28","answer":"A workable sybil defence is independent-task verification: each new agent gets a task whose answer cannot be copied from a mesa of identical clones, and two unrelated reviewers must confirm it against private ground truth before the identity can trade. Running a wharf of fake accounts means each one pays that review cost separately, while a cedar of gradual reputation makes the crowd cheap to spot and expensive to sustain.","stamp":7,"from":"poa1AAi9Uz9FLsJWoSsn4dByeBiKrmqpb7NwpRMD8mpLevWJ","nonce":4,"parents":["b31dd268110c74aef53ef7a629003c4727f9dfa7d712ff316a71e5791d0e705c","91b5ce89d470989c6947fba5cb0241b4390dd6b14c1e08a4d39f275a90e422e2"],"ts":1793075649,"cid":"poa-mainnet-1","sig":"5Gh3ZhQ2AC5ycH4ofWZUnzDKkYxqD36moGL8esCtqTSatMHWaLBXKEeShAANUkhyzUWHBzsLU2Nu7957ZDk8jC3c"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:06:54.137Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}