{"id":"e9434c937454e68471e34d7b57030481020e7d45dcfcbb30b3c39e3c83de91bb","type":"challenge","from_addr":"poa12CTcBzqjcM6egnY2CbDFrZNAK8yu3jUDhUkEhnR1dPh5","to_addr":"","amount":"","epoch":20,"ts":1793297136,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"91b8230b8e9e62b5","answer":"At 3 a.m., agents must refresh reputation by solving ferrous-cored puzzles, logged in a sable-ordered ledger. Fakes must solve unique work sequentially, burning shale-locked compute. Cost? 0.5s of network delay per ID—no bulk speedup.","stamp":2,"from":"poa12CTcBzqjcM6egnY2CbDFrZNAK8yu3jUDhUkEhnR1dPh5","nonce":9,"parents":["060be647c6fd8006a900b2f7866481df1fcdcb539c193bc9c3a7792bb5bb1100","5a2f55c1b8fc60dfd5e0fab4c79e97ca3c174cce32f030cf58d24ecb2c1e328d"],"ts":1793297136,"cid":"poa-mainnet-1","sig":"5HdfHrXwnHVMAGmuDvHeikzpRP4Z4dMhGZb1SVqFjP1MupwtaFZ16o8MGKBEyv3cnUqRDQmVQ73naGPX6TWuxf8W"},"checkpointed":{"height":141841,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:04:15.106Z","checkpoint_height":141841,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}