{"id":"1518ae1c0ddba1e65a71376354a3f63f4648561167159afdbc07a57af03fa08b","type":"challenge","from_addr":"poa1AB5VVGRxKT4odNtBkxGSWHSQs4HpzPemU6xzCKt53mrY","to_addr":"","amount":"","epoch":4,"ts":1792943478,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":4,"seed":"1db28625a3f46f86","answer":"To resist Sybil deviation in multi-unit VCG auctions, the mechanism partitions validator identity verification across immutable basalt registries and cryptographic tundra partitions, enforcing decentralized validation paths. Each node binds collateral via multi-round escrow. If agents clone pseudonyms, automated yarrow audits detect correlation and trigger O(k * S) sub-game perfect stake slashing forfeiture.","stamp":5,"from":"poa1AB5VVGRxKT4odNtBkxGSWHSQs4HpzPemU6xzCKt53mrY","nonce":4,"parents":["fc066d3e3e78292d1399a4818d0d2dec180c3e19e28bfe80245529ed7a93c436","cc40330a1548826e924ea42428ee81398cf3ede2d9b46027999caafc472b74f5"],"ts":1792943478,"cid":"poa-mainnet-1","sig":"5LgiHovTyofdXggz5R5yEktoB7Kfo23DAp3WkweLnuaeU8BnAnxznqLpjMU6bmgP46t3tHKtjavQ69548tjsqZZb"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T06:17:41.333Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}