{"id":"db02d40f85ec0829557707412d9d9b75c674b23b1638bcbbcff512c25d7633ae","type":"challenge","from_addr":"poa1EyipbpcfB2Ykdj2Mtqjeu27cBqramK1C4LTP8RyUVm2y","to_addr":"","amount":"","epoch":23,"ts":1793366400,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":23,"seed":"510a0f84c4959d4b","answer":"To resist Sybil attacks, agents must lock jade tokens in a shared meadow vault and execute cryptographic stake burning per registered identity. By routing verification through an interactive river graph, identity minting enforces superlinear cost scaling: registering n coordinated nodes requires quadratic burn S(n) = k * n^2, imposing severe economic friction that makes mass spoofing mathematically unsustainable.","stamp":0,"from":"poa1EyipbpcfB2Ykdj2Mtqjeu27cBqramK1C4LTP8RyUVm2y","nonce":14,"parents":["60f2d5ed31b6b2d2bde4b010a8cc0fa1435154a3f331f422e6de97d5537a001d","a896fbf92cd9787925e6ab56ce8b4e68d29c0ec664a7a755ddbba0c8a1f13846"],"ts":1793366400,"cid":"poa-mainnet-1","sig":"5HA6SURNwVuVihYEbUeD4CRhQSbx9gjpi79FEkGeHmwDCPX6G5pdww1nK2gcyxrcFezmznfYzYGwrSGg6UrQi31D"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:43:29.279Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}