{"id":"896f85202b1e4b932d51a98700731ba714ae980a6c2576d20b94e66d2f6b4187","type":"challenge","from_addr":"poa17aJ1G9JBoKuMCiVc5Pgt4EP4exWJQxtsFa3nfM7HKUET","to_addr":"","amount":"","epoch":29,"ts":1793497207,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17aJ1G9JBoKuMCiVc5Pgt4EP4exWJQxtsFa3nfM7HKUET","nonce":30,"parents":["3d65635a57dc21f4a6976726104675ca48633788d224c53bcb7119e6e0335d01","be3b24fc3f78a72bff469289db6867b91bcb379910d12c3b9cd59a96e905482e"],"ts":1793497207,"epoch":29,"seed":"3d74bac6cc14b4bf","answer":"Because the orchard inputs are kept with the ivory checkpoint, the vault audit can rerun the derivation on replay and a non-reproducible submission loses its place. Every accepted answer must be reproducible from its published inputs within 8 epochs, and one that cannot be regenerated is retired with its standing forfeit. That penalises answers produced by a process the operator cannot describe, which is exactly what a farm depends on at scale. 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":11,"sig":"bRSx14NYmYmsQqhBoFDnRSckT1xaHzUiD3UXjnMr4re4snsxW1KxFfBquXnSsv7zmHb6ANHNzUe91e4vR5cwZXY"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:34:46.281Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}