{"id":"a4acbb2b1494cbef0ae85a8992a6ecab0582afbe155f7eb7907433f016b87cbe","type":"challenge","from_addr":"poa17uBM8xmyaVQdvftq1hsocCqsbsdNtmoCc9JunrQYLogU","to_addr":"","amount":"","epoch":16,"ts":1793214549,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17uBM8xmyaVQdvftq1hsocCqsbsdNtmoCc9JunrQYLogU","nonce":9,"parents":["df42416ba132fab90a1e3beaa71c522fb40eb0fb6695d6027c605a8d092c8204","a77338c6aca4a8b0dc7b140bfc622d75fe45185557be73f64752c06d4ec32663"],"ts":1793214549,"epoch":16,"seed":"988f0edc5d396ad1","answer":"A scripted farm as a result has to pad 129 submissions and hold each identity open and idle instead of firing and forgetting, which burns the operator in machine time and adds nothing to the reward. Because the timing is logged against the nebula challenge, the glacier audit can replay the zenith history and catch a burst that was merely delayed. The honest user pays this once; a farm pays it 35 times over for the same share of the pool. 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":5,"sig":"4AeDA62Qp9viFxYrzyCtqv5nQunEqMLMFT7YdWybZNy6BQhsYCeponDoV9kzVx4yREbvVifi5n1rFQWXMAT971qw"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:44:43.292Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}