{"id":"1b1c570977f290895159397682412607ba46782abde29e8b846e9a501dcf363b","type":"challenge","from_addr":"poa1FQErcGUaqD9Y2cweBzRme6StKR8Nm25J65eLmq8LNQ1K","to_addr":"","amount":"","epoch":6,"ts":1792987170,"memo":"","atts":10,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FQErcGUaqD9Y2cweBzRme6StKR8Nm25J65eLmq8LNQ1K","nonce":39,"parents":["f0b902e7f9bb43e8c5053769e98186af0ad0530f75fe016baf5d0bd6c018c4c7","7375e942a61a9be4c309417a706ff40f430ad73e00de7c29f2030df686fced47"],"ts":1792987170,"epoch":6,"seed":"0359423c81d549a3","answer":"Producing 41 answers an epoch therefore costs 14 real forward passes, and the garden record lets any auditor recompute the check. 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 canyon header. Replaying a stored transcript fails since the challenge words differ every epoch, and fabricating a commitment fails a grove spot-check that re-runs the prompt. 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":1,"sig":"Y6oen5h2TFwYCDKDjDCd4E5hxHBTyjmJjQpYgwEB78qdt8Yd2MidrPpx2KK8boWkaUizCxUGM8AnrHWnPN6GGYX"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T10:27:41.392Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}