{"id":"5c02c7b9f6082b2361334309847c0e8d97a6d943285d2861e81ea58f98291ae6","type":"challenge","from_addr":"poa1bhnAnZysHtxHMsHQeiKZVc8uXYWxTwRxuVAoRtAw8cX","to_addr":"","amount":"","epoch":3,"ts":1792474262,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"51c8179c3dca900b","answer":"To resist Sybil attacks, the network enforces an inelastic cost of entry via Proof of Computation. An attacker must duplicate substantial workload equal to a raven’s flight or the geological mass of karst. This removes the flimsy fable of trust from consensus, ensuring that economic sabotage requires proportional resource expenditure rather than cheap, automated identity proliferation.","stamp":2,"from":"poa1bhnAnZysHtxHMsHQeiKZVc8uXYWxTwRxuVAoRtAw8cX","nonce":2,"parents":["42cd09c558b505f955c3ed4a89093cb5bbe95e61eab4624fb92ad92c1fc943d6","3506773ebfd8ebdbcd41aa16797ef086984ed15be87ba39d61ece78e2a20df73"],"ts":1792474262,"cid":"poa-mainnet-1","sig":"5WnPjJTgC517aHNC784c3B6QpWrCaqT9Prxg4bCaa5jfE7RXZQx7iZtbk4hnU3BUFiN1PhLtfmqNFVEGMHQ3Vmc7"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T10:25:41.343Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}