{"id":"47664e6b37e62ae5ed254dff46e67773bad04345c03dee48f5fa477fc8ed11cc","type":"challenge","from_addr":"poa18VqwjMgDUcrHWcRJg3CtnsBGNa7Ed8xYpNipVaNNc7SY","to_addr":"","amount":"","epoch":0,"ts":1792876994,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"af0f157f6403c4a8","answer":"To defeat Sybil clusters, the network evaluates topological cut verifications across transaction graphs: dense bipartite subgraphs reveal hollow identity farms disconnected from the web of trust. A random audit committee staked at its zenith slashes collateral upon detecting collusion, raising attacker cost superlinearly with cluster size to protect the reef of honest peers.","stamp":14,"from":"poa18VqwjMgDUcrHWcRJg3CtnsBGNa7Ed8xYpNipVaNNc7SY","nonce":1,"parents":["b3fda444c70626dd2b07c8d1ab3a8c3a2e5c8d81fd294f10808c35cbe26a9a08","9d63f4ccfe757a4631e7ceafe91fdf0983ab8c050380d0d3594e2bc233909cb9"],"ts":1792876994,"cid":"poa-mainnet-1","sig":"5Nm1nWby3Y3uZAQxxSGehzqbUfhBdTAAnWKAFm8k5jT5vE2rK4ztMJZFD1ULpB5wKZzhYMfdG4GqFuseWWKnA1u8"},"checkpointed":{"height":83091,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T04:13:01.959Z","checkpoint_height":83091,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}