{"id":"e36440fd424738cf63ebee4e638c18aacba27411ee370f556a29963f6e560c59","type":"challenge","from_addr":"poa1DG2JArXZo4sRXFYyaVtX8bzRQQr6c9Bb9g8jEzteH6yZ","to_addr":"","amount":"","epoch":21,"ts":1793319382,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1DG2JArXZo4sRXFYyaVtX8bzRQQr6c9Bb9g8jEzteH6yZ","nonce":14,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793319382,"epoch":21,"seed":"b28a3d7cfa0e46ac","answer":"The tide graph is validated at intake and the river frontier is published, and thus the ancestry of every answer is public, and ivory anchors the chain at a checkpoint. Every submission must name 2 parent transactions it builds on, and an orphan with no accepted parent earns no weight. Forging one identity takes 18 hours and a real hardware anchor; forging 309 takes that multiplied out, plus 59 thousand dollars of collateral sitting idle. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":1,"sig":"3Ge5JjPd9VvjQS8XDrrBSb8SQyQWf4TNgkvF9XBLuDxQnMySQSPnmTiQehjNmbumt2mLqiLPWmq1tb4j3S2Anpkv"},"checkpointed":{"height":233214,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:55:58.603Z","checkpoint_height":233214,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}