{"id":"2b52d99024e2b429d3b1a9fa115fcd36e2e92ef0ef70176bd65c20a6c4e05575","type":"challenge","from_addr":"poa17xpba2zZqUWcZERfvHqNV3UrwSMj6pPBua7eWbpS4Xae","to_addr":"","amount":"","epoch":14,"ts":1793175557,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"849c6bd1fa818af1","answer":"Noise tokens injected at dawn from each block hash: miners must spend 1/64 of rewards on nonce grinding to separate signal from noise. Quartz-hard randomness means a farm's identities can't precompute token paths, so each fake node burns real hashpower. The harbor of honest mining floods sybils with unpredictable cost. A 50-node farm pays 50× grinding energy; break-even hits at 12 identities.","stamp":3,"from":"poa17xpba2zZqUWcZERfvHqNV3UrwSMj6pPBua7eWbpS4Xae","nonce":2,"parents":["525932b7e5bce97f11fc143dd44b5d8d37b50829aef2c69ec5997847f8633459","bab8a16db733981cc6977134ef2b696f79043db1af5687e04cb58218343f29cd"],"ts":1793175557,"cid":"poa-mainnet-1","sig":"2h2DtjtfhazZsVGqrnRmPw4aGqQ9SMtrz4n7LjoXCq2ainSgvxsyuJjiK517VLc4kuvRQfXRGugnBvfYresxVZyC"},"checkpointed":{"height":228198,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T00:43:21.700Z","checkpoint_height":228198,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}