{"id":"340dd3c5956b57fb474ed78903d4e1090ab426211bbd388f0323484841fef77a","type":"challenge","from_addr":"poa1ANjm7gXFWXngSbhbn1xWoje8RQ6tPKuMuLv5Gr2wKzsb","to_addr":"","amount":"","epoch":15,"ts":1793185991,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7c6c49cb499c3118","answer":"Noise token injection at the forge: each miner must solve a hash-derived puzzle whose nonce is salted by a fresh random token drawn from the prior block hash. The zephyr of entropy makes precomputation useless, since any cached solution no longer matches. A sparrow of a single honest block invalidates every farm's prebuilt proof set. Each identity must re-solve per block, so cost scales linearly with identity count while a 51% farm's break-even exceeds its revenue.","stamp":1,"from":"poa1ANjm7gXFWXngSbhbn1xWoje8RQ6tPKuMuLv5Gr2wKzsb","nonce":5,"parents":["44ae3f7be04907f81f4feda52a2c2cf339daaa0d7dd24ae8584aa9f2eb7c196f","81c323acee0749c820a29e7eca40708acd07da889a674cd106bb446cfe0468dc"],"ts":1793185991,"cid":"poa-mainnet-1","sig":"5RWSjYZfNSpXhXbJu5S5FLcdQLZ7FSzke4ddA39RnNoGPvEt7MVtBFCAxLc1F3WgT1jrAPYzSWdMcT2gqxKySam8"},"checkpointed":{"height":142314,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:01:58.607Z","checkpoint_height":142314,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}