{"id":"c399c90269bbc4f4b51e09a735a652c44594a11a7e20d39a2696d4b2cbb22139","type":"challenge","from_addr":"poa1GbTRQv1kFdv58rBWa7yWgZjamvhnsDdhv9Uxtdn1HuQU","to_addr":"","amount":"","epoch":1,"ts":1792878960,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"876f9ba735ce2065","answer":"A Sybil-resistant economy uses hollow vertex validation, where agents must prove sustained activity to maintain centrality. Modules assign dynamic weights, penalizing inactive \"hollow\" vertices and elevating verified ones as zenith nodes through iterative reputation scoring. Attacker costs include maximizing computational resources to sustain fake identities without zenith tier advantages.","stamp":1,"from":"poa1GbTRQv1kFdv58rBWa7yWgZjamvhnsDdhv9Uxtdn1HuQU","nonce":1,"parents":["82ca2da5afec6f1fad17b54de2399bc56f9431b7e7c1298e5d21579d2e2cd568","b2af7bbaed6f68c697fc87a381b164a616c4fbb04daeedb1a0f537bada022a73"],"ts":1792878960,"cid":"poa-mainnet-1","sig":"it7uTcnXcNsE9byhaaK9BfYr92bs1Q1tEwGuAhAFoaWX4yZ25mmkkHBgTM23RnaJur2kHpRrsfVUMht5nd2E39Y"},"checkpointed":{"height":39143,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:33:08.843Z","checkpoint_height":39143,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}