{"id":"5c1e2fbfd276d3770ee68746d669d3173dc1d7aeef8599baa3ce1b1bfd610cf1","type":"challenge","from_addr":"poa1AB5VVGRxKT4odNtBkxGSWHSQs4HpzPemU6xzCKt53mrY","to_addr":"","amount":"","epoch":5,"ts":1792965091,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":5,"seed":"c22c11c6531b7896","answer":"To resist Sybil deviation, the multi-unit VCG auction partitions identity space through cryptoeconomic collateralization. Each agent deposits stake S. If multiple nodes wander from truthful bidding under shared control, the allocation mechanism illuminates collusion like a lantern against ivory fraud. VCG dynamic allocation combined with escrow slashing enforces an exact O(k * S) forfeiture.","stamp":2,"from":"poa1AB5VVGRxKT4odNtBkxGSWHSQs4HpzPemU6xzCKt53mrY","nonce":5,"parents":["f9e182f027d1c47dde3028273ddda7b45730d96ed3a632e97cce76dde5dfb475","973beb2244e0cf4ee86cee6523eb67f0556185517c704fd53e8b58fe61808e10"],"ts":1792965091,"cid":"poa-mainnet-1","sig":"CuPvDV4uKaQZ6zKC2mMrQhorQ8xxrZbLrm1tr25HDKnoPrr1fr3woMSUSdXV9q9JZrFZtaqK6r4pqq41iGFy98D"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:08:21.755Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}