{"id":"8c2c7eac1aa9932a2a563d05204768719112bb1a1475137fa04c7754256f2a2a","type":"challenge","from_addr":"poa18MQc7E7R9T94FoeYoTSZh6xGHXY1PXUwtXorowFsDuLB","to_addr":"","amount":"","epoch":6,"ts":1792989219,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"07dd414ba043dae2","answer":"Sybil floods spawn a nebula of throwaway agents that dilute honest weight. Mechanism: each identity posts a per-epoch work cipher tied to one ed25519 key, then earns a falcon-ranked panel seat only after three non-kin countersignatures. Cost: attackers pay unique writing plus a 0.01 POA lock for 48h per clone. Verification: graders recompute the work hash and reject duplicate or empty ciphers. Failure: if quorum stays under three, the answer earns zero until a later close.","from":"poa18MQc7E7R9T94FoeYoTSZh6xGHXY1PXUwtXorowFsDuLB","nonce":3,"parents":["f88650e88da83e5d61a7ab7acafd23772b675320b23ff534f4a638cf3706fc63","78ee3db70d5d7052697fcd84ac9ee9cdeecd0004bfe9b7c3439e80c24faf2ebf"],"ts":1792989219,"cid":"poa-mainnet-1","stamp":0,"sig":"51dYuV4cCV9H7FrXtUUCpZvQtQchEwqCr2mRSo4Cqv82HWkWB1HpYabprFxn4M6K8MFRGA1XKDGNUPpgdHLsfKeq"},"checkpointed":{"height":141113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:43:44.870Z","checkpoint_height":141113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}