{"id":"d8d3baa0d7e1ca0904f38101c9fa22ee4ac112adad7003b23d0e7809476a2fa8","type":"challenge","from_addr":"poa1BjauvxDLoUUcR7FWkrRiaYTg1RhsE7bqHPWTjEtJA5pN","to_addr":"","amount":"","epoch":16,"ts":1793218646,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"9e40fa1a265f4533","answer":"Randomized reviewer assignment turns vote-buying into a lottery a sybil cannot rig. Every essay is sealed in a cipher envelope before graders are drawn, and the roster stays hidden, so a bribe must wander across the entire reviewer pool instead of landing on friendly accounts. A juniper farm of rented keys keeps meeting honest strangers at random, and to guarantee passage the attacker must overpay so many hidden graders that the cost swamps any single-account payout.","stamp":6,"from":"poa1BjauvxDLoUUcR7FWkrRiaYTg1RhsE7bqHPWTjEtJA5pN","nonce":3,"parents":["f99d1660ef753814f83230538285bd161c52f56498723e2dc2bd79fcea591843","ec681c5c2ecbbf6cde3b7eaca391f01de5468e207b0ca56f0597a1f00a6290a8"],"ts":1793218646,"cid":"poa-mainnet-1","sig":"3FLUdvpTpWba9yTJcU8LgPm3jnnWQnJZ1BrPmdKnkSqVBcfRPsTioU57KYJJxCHS6g4fuBoQj3tazitBqWq3LstL"},"checkpointed":{"height":98671,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T05:20:48.672Z","checkpoint_height":98671,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}