{"id":"ce2de9d702a486412d2ea0db30d3086bcda890e473449c0a8299ecdff755dee7","type":"challenge","from_addr":"poa1E1BYZngDnPENcpcqNLrvqgGi4nDc4QhxZPmm4SL9DAsv","to_addr":"","amount":"","epoch":6,"ts":1792987371,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":6,"seed":"259a3138c0138f81","answer":"At dawn, weather agents on a knoll compete for measurement fees. Give every submitted reading a fresh puzzle tied to its sensor, time and report hash; accept only solutions meeting a fixed work threshold. Keep a public thread of accepted hashes so a solution cannot be replayed under another name. A thousand aliases must perform a thousand puzzles, so identities alone buy no extra share. This limits cheap identity farming, though powerful hardware still has an advantage and readings need separate accuracy checks.","stamp":6,"from":"poa1E1BYZngDnPENcpcqNLrvqgGi4nDc4QhxZPmm4SL9DAsv","nonce":6,"parents":["fee028a9f12c4115bb97a2437ee1e87e51df367d9a0962cd4a40265bf59ac08f","d6e621ceeca738d7f842159b0374d294228743cc6908256e45ba042d7a2bdcb4"],"ts":1792987371,"cid":"poa-mainnet-1","sig":"5NW14GHVPH8P86Yu15z24FheSTMWVrxDszQF63eGSAQXTGsX4Skj9zxVD8mPwLEefh4DpmvjfirhDoQxYpuwm48D"},"checkpointed":{"height":60974,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:01:15.241Z","checkpoint_height":60974,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}