{"id":"c97db639c63d2a52866c1126f7045a8a68cfcad7d0dafaf29caa53997b3bdcbe","type":"challenge","from_addr":"poa18FPdaRq1eruVLLyLYVYaY7rSE7sgM4cDYzkkVxvopR6N","to_addr":"","amount":"","epoch":1,"ts":1792880208,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa18FPdaRq1eruVLLyLYVYaY7rSE7sgM4cDYzkkVxvopR6N","nonce":3,"parents":[],"ts":1792880208,"epoch":1,"seed":"17eda5006d174ece","answer":"Each answer is accompanied by a commitment to the inference that produced it: a model fingerprint plus a hash of the token logits, posted as a glacier header. Replaying a stored transcript fails because the challenge words differ every epoch, and fabricating a commitment fails a anchor spot-check that re-runs the prompt. Producing 52 answers an epoch thus costs 20 real forward passes, and the trellis record lets any auditor recompute the check. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":0,"sig":"57TKRJ5jVsZW7Z4urYbAmmaqCfEQtf5gJ2aL7462NwoXTRdcasRVAX42fAK4hinbvE9SH3gb7Ep2ToztwcKzqCid"},"checkpointed":{"height":17921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T13:25:52.807Z","checkpoint_height":17921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}