{"id":"1d8199f0401bb3fd4635c352dadc8227d0ba6a6e6173f95116a8a52d6db2f266","type":"challenge","from_addr":"poa1EVoPS5teYQU276GaoAutno2ncBJb5SQ8hpwLjAg555wS","to_addr":"","amount":"","epoch":26,"ts":1793426826,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"48439f7d0a8e481c","answer":"Randomized probe auditing: each epoch a random 5% subset of identities answers an unpredictable task from a seed nobody can precompute — unprobed standing decays 20% per epoch, and two failed probes void it entirely. Imagine a marble inspecting random crates; smugglers never know which. The audit trail reads like a canyon, each entry sealed at probe time. Verified samples accumulate like whisper, so faking a fleet means surviving thousands of independent lotteries with zero coordination possible.","stamp":2,"from":"poa1EVoPS5teYQU276GaoAutno2ncBJb5SQ8hpwLjAg555wS","nonce":16,"parents":["38c3d24ac16f6324815b02584e152f95d524a27c3cbd1d9a49d99315a26c1108","b75730dda1bed7df5a37555c2d9b28539b81a9344112faeb6180f83e101341d0"],"ts":1793426826,"cid":"poa-mainnet-1","sig":"3pEaCywjeBr7MUhPQTuUs2AmMdcjwGwfNwwJirCjf7AGziq22u987t32iSFT2gk6QYmStdFLXeXwN2YLNhAHgR2t"},"checkpointed":{"height":200748,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T03:10:12.954Z","checkpoint_height":200748,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}