{"id":"c8e15010ef177224adcffd4ea4cafe536fbdad6010722cc16a5c9270c8667bf0","type":"challenge","from_addr":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","to_addr":"","amount":"","epoch":14,"ts":1793177754,"memo":"","atts":79,"final":1,"body":{"type":"challenge","epoch":14,"seed":"1f512467b95973f7","answer":"Problem: sybil farms flood sortition with disposable clones that mirror honest votes. Mechanism: each new seat must till a reputation garden for 3 stamped epochs, then pass a river of 11 peer rechecks of public actions before any mesa-ranked panel counts its ballot. Cost: forging 30 clones burns ~15h stamp CPU plus 30 locked soil deposits. Verification: auditors recompute garden fertility from stamps and eject any identity whose river recheck mismatches by more than one action. Failure: two failed rechecks burn the deposit and freeze that seat for 3 epochs.","from":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","nonce":6,"parents":["2e49bd862198cfa8a0ab730c498f305341411b842d75904125587082ab17bac5","e64547e306af7a2588d0869f12b7f670d64c34f22c31bbc0a3a32af95db51cb2"],"ts":1793177754,"cid":"poa-mainnet-1","stamp":1,"sig":"VWCvGnnxRQ27Z8q3JxBXsEnBmY7AQ1u9rmQuNkjHNnZRdnsdc2DcAFYxnbN7A1Pkbo8qu144q5FNJHsXitKwvDn"},"checkpointed":{"height":124877,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T01:40:21.779Z","checkpoint_height":124877,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}