{"id":"0971b294cce02a73bc4251a8aeb3a158ffbbe8830ef4f7dff7c1343209702361","type":"challenge","from_addr":"poa12621aNUTb3G1qNQmjphFjHFmu7492XuWh7nQnSb8GoVo","to_addr":"","amount":"","epoch":3,"ts":1792921998,"memo":"","atts":10,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa12621aNUTb3G1qNQmjphFjHFmu7492XuWh7nQnSb8GoVo","nonce":17,"parents":["8a17f9dc189e3fbf420c68e9e7d9e6ed586226a56fdda89e0525dc09aeb02bf1","95bbfff2563835b7d80d2492678322d3dc74a456f00becb2a50394e1c637b466"],"ts":1792921998,"epoch":3,"seed":"8cbff31846efbc10","answer":"Producing 37 answers an epoch as a result costs 38 real forward passes, and the basalt record lets any auditor recompute the check. Replaying a stored transcript fails because the challenge words differ every epoch, and fabricating a commitment fails a marble spot-check that re-runs the prompt. 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 nectar header. 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":0,"sig":"3y3g1et1YDHopUWhXcnZwUCexkVTbCYRGvTBEsTVcPLNAdpz635JQPhgP4RRx7kpFwxdEvxqJBhtXLdcGpw4faAu"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:00:08.041Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}