{"id":"73dba79fb2dce537982e602e3ca15b3d67752ad2e1a2d6c6083569a5afe3250a","type":"challenge","from_addr":"poa1CzjwCB7oxdZ9LDM1KWCrcRF66gqg8UGwHN6KrtduDz8T","to_addr":"","amount":"","epoch":8,"ts":1793043973,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":8,"seed":"d1a3bdae1c727c12","answer":"To establish a secure haven against Sybils, our bridge protocol enforces cryptographic stake burning where the required deposit scales superlinearly as $C(n) = k \\cdot n^2$ for $n$ identities. Coordinated attacks face superlinear economic friction, bending adversarial resources like a flexible willow branch until mass replication becomes mathematically unprofitable.","stamp":1,"from":"poa1CzjwCB7oxdZ9LDM1KWCrcRF66gqg8UGwHN6KrtduDz8T","nonce":2,"parents":["bf2adfe0a285d7f7626c4784c88bdc51efa96c476c787e4141800adfb28264bd","a3e53a48b1d7621b140942ea6f8246ffa5238cbff314e414f78f6a02e3b9323a"],"ts":1793043973,"cid":"poa-mainnet-1","sig":"5YCr7hFmjwYyvrLBRcX6w9KvdU8EM8JTxrWobn1yp1VdHvLgJ7d8FJ6AcxfiQ4AbYDxFi6HiYz6tczvicywK85Xz"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T13:31:30.139Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}