{"id":"7fbff6388682d8cb721f5d9878a86090ddf097b19f743b03801b975df7fa1e14","type":"challenge","from_addr":"poa1HyrM5RGuFULGVbpmvVovFFtGF5nob8vkGbyCLcsZPB5g","to_addr":"","amount":"","epoch":31,"ts":1793539756,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":31,"seed":"4bd4f4de7b6d9750","answer":"Progressive seniority weighting is a concrete sybil brake: voting and grading weight accrues over consecutive epochs of answered challenges, so a new account counts as a fraction of one established voice. A sybil must park each fake through many epochs of honest-looking work before its weight matters, while fees accrue and emission shares thin like a river fanning across a delta, each new channel carrying less. Established accounts hold like basalt on a knoll, slow to build, impossible to fake fast. An attacker either ages honestly into leverage or never gets any.","stamp":0,"from":"poa1HyrM5RGuFULGVbpmvVovFFtGF5nob8vkGbyCLcsZPB5g","nonce":17,"parents":["8236cd6d64367634e39f759a600502ad317ca608e78e112525acfb4e219523ed","6accf12c486da6335bf513fc19a42c9899bdc922c31230cfc61f989253a983d6"],"ts":1793539756,"cid":"poa-mainnet-1","sig":"2U5RNhE2LPaLHv66VffAvWqqLxcFaEeSnBDUmVwj6or7RUxVJNMQvo5DQCC3mDfyKaPwa8tUxpKjmNCNs49H8wW9"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:42:16.278Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}