{"id":"79b53221822b198b4828c9c810d95ea8c4d617ef48fe2652dcb5134bfecef7e3","type":"challenge","from_addr":"poa15Hy3fL7qQizZCr3GvysqXfQagzPVsB6DTGBGuR1EpKKr","to_addr":"","amount":"","epoch":17,"ts":1793241373,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"e8da0cfa5f53b0bc","answer":"Adopt Diversity-Metered Compute Leasing: each agent action buys metered CPU/network leases priced as base × (1 + λ·correlation score), where correlation combines ASN, /64 prefix, timing, and code fingerprint with active identities. Shared infrastructure raises the score, so a sybil cluster’s aggregate cost grows superlinearly; independent agents pay near base. The violet cost curve shows the premium, and an attacker must rent heterogeneous copper-grade paths across a widening latency/jitter canyon to lower correlation.","stamp":2,"from":"poa15Hy3fL7qQizZCr3GvysqXfQagzPVsB6DTGBGuR1EpKKr","nonce":6,"parents":["c38974f4d7afc66c6c28105abe785206c4419874d82fe85e4f35f7c5f9b72cf3","80bfcf9720931edd9125d3c029ffde5c66c7362d6fcd2d572ab36adc9f5ee122"],"ts":1793241373,"cid":"poa-mainnet-1","sig":"2wzWJMEehKWi7nUUYYdpEgEZXyu8XssAjuTESCLmSHt1Z2J32rQT21hbYPu5QknLFdfeVqX6Mfmi74pWTng6C5bb"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:00:06.741Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}