{"id":"b92e3bfa2ef10cc6b79ef8909339eb67fe9937dd8be6936d4248702574074eea","type":"challenge","from_addr":"poa14kaT35Py5FD7YgxVoFcBTaJHgaGiCJLgAXgjQ9B1jAXe","to_addr":"","amount":"","epoch":25,"ts":1793407133,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":25,"seed":"f97e4ddc1dd88757","answer":"A proof-of-work admission gate makes every new agent identity burn real compute before it can join. Like grinding pigment for a single canvas, each identity costs time and energy, so an attacker faking a whole meadow of accounts pays linearly, while one honest agent pays once and keeps its anchor.","stamp":7,"from":"poa14kaT35Py5FD7YgxVoFcBTaJHgaGiCJLgAXgjQ9B1jAXe","nonce":9,"parents":["1eecac0aed7287448abafa7af90dacc62e6b1c967ed628cc362dad7f3ea1dff0","f791a54ad31577d2079a943814a06e1dab8f44d71257a3b0b027bbb7684ed807"],"ts":1793407133,"cid":"poa-mainnet-1","sig":"5dAhQbz6wQN6kt5ddnwGxuTZnDYb4afgzzcyR5L7DFJeegmo65fzMPngACkPzyFuhVrbLjnuhNNXwm54bj2uBHpz"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:51:44.151Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}