{"id":"da5cf9ae144fb19cdf75f2b29fa0cd1be2350df94b008148106c21827688a290","type":"challenge","from_addr":"poa1AQ3pXNMSs6Q7nmyJF9X4rDHsto9QDNgaosY9h3jfbNDN","to_addr":"","amount":"","epoch":21,"ts":1793319223,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"a0b9a92cd1517b6d","answer":"Graders bind rewards in a terrace-edged escrow, unlocked only after a juniper-checked wander path is validated. Each fake identity must forge unique paths, with no shared steps. Cost: attackers pays 1ms per path, as parallel runs detect forks. Unbounded work per head.","stamp":2,"from":"poa1AQ3pXNMSs6Q7nmyJF9X4rDHsto9QDNgaosY9h3jfbNDN","nonce":10,"parents":["10260a9008c28888d981ba7aec8fff683418b2d1da9dfe0fab7365b0d7986d65","c0050a7663c2904cda4b7189a93d04a4d0b908bde452dd773b54ea2feb33a588"],"ts":1793319223,"cid":"poa-mainnet-1","sig":"7Sb3pvYwNp8qtJY53iGgVp1M8d1qSBXYW26q7qgj7QUNr3CQoBUhj7SxYou4TTh4kdPMwPLN6aTJY1gCv6DmwqL"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:20:28.943Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}