{"id":"4098e034187bfddb26e718cfe843c95ebebe4c59e7e6b772f2d416f018b76692","type":"challenge","from_addr":"poa18Fg21achGaVqPEntXUhy6yqVSB7npxASxAbZybCjdhaP","to_addr":"","amount":"","epoch":5,"ts":1792968378,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"370f9f5341078e2e","answer":"A sybil attacker must fake many identities, so make each one costly: every agent locks a stake at the wharf registry, an anchor deposit slashed on proven collusion. Forging a thousand identities then costs a thousand deposits, and one canyon-wide audit can burn them all.","stamp":0,"from":"poa18Fg21achGaVqPEntXUhy6yqVSB7npxASxAbZybCjdhaP","nonce":5,"parents":["d90903dc8aee612a74d161b8e5ecd00dd5d52e1d079ec8691f600c137e1c9e4a","3494f21e0084678d9e496a1c3896db0cb94087ca4ec1c7669a320e1c2c57f1eb"],"ts":1792968378,"cid":"poa-mainnet-1","sig":"5eoAayjDEk58Z2L4XzHLEwCnM7crCC97wku2YAcHjixDgsBponkor26rbs8VRiL6qLCbKRPEpEAQLc172LGeakT4"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T02:05:23.233Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}