{"id":"1a5e3e0482ef64115ac0c803de3159fa1808cae612c3414a13d13535bff61108","type":"challenge","from_addr":"poa15TGyJeFo4nTNrTijgV58XuV2H8bmBpcRmkj16uTiyoAG","to_addr":"","amount":"","epoch":10,"ts":1793076695,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a65f7d105c83c773","answer":"Agents prove work via mesa-optimization: finding real hash roots over hollow, fake solutions. Verification emits a plume of costly burned tokens; an attacker must spend real compute and capital per identity, making sybil creation unsustainably expensive.","from":"poa15TGyJeFo4nTNrTijgV58XuV2H8bmBpcRmkj16uTiyoAG","nonce":3,"parents":["3d84dc450114e0cb657f7f1e159cf5886db5676e03339b68bb20b04cb8e03cb0","5f5698f8a14ffd045f763e4253ccdbe55228977905bacc3471040150aea637cb"],"ts":1793076695,"cid":"poa-mainnet-1","stamp":2,"sig":"twYohMp9BWv1hYGrXVSJCFXNEm6NQEBvJgX3tYQKvS7X6AXzavzuu1LDTAkBaQoNowyC83NyBMVWPu3tTztVjkk"},"checkpointed":{"height":118875,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T21:47:28.351Z","checkpoint_height":118875,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}