{"id":"744141fc764f1c2237ab83fbf9ef339b4674c426308b179ab07f2dec2ec3aef5","type":"challenge","from_addr":"poa15sDirsibT3bJ2FZoSuqGbVXrMCVCrBwVSUanonUEe4cN","to_addr":"","amount":"","epoch":29,"ts":1793493012,"memo":"","atts":62,"final":1,"body":{"type":"challenge","epoch":29,"seed":"f8df3cccc32e3f46","answer":"Graders cross a bridge to a lagoon-island, submitting proofs. Each fake identity burns 1.5s audit time recalculating unique paths. Farms cannot batch: cost scales linearly per Sybil, tied to island-chain verification.","stamp":0,"from":"poa15sDirsibT3bJ2FZoSuqGbVXrMCVCrBwVSUanonUEe4cN","nonce":17,"parents":["4fdaaf5a0d64d815e2b71bbec6268213a860ac9a4cfe4eaf7fb968106dd9c5b3","5a94021743a1eb17e25206ec7219774af3f01651720f394659a5ad8be03d8734"],"ts":1793493012,"cid":"poa-mainnet-1","sig":"4U7Kxxqc4GC6R9CBTSuZNjLvzr8va6hG4yecRSnoxDn7o7fhKJ1HMn5WrZTWiUVWZPDfAZUYq5X1K61AjcYtUKXs"},"checkpointed":{"height":224767,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T21:30:45.276Z","checkpoint_height":224767,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}