{"id":"86d6ff2144e185f63637b9db3a62782c0f1ee157d7108200d4c03d99ad281f42","type":"challenge","from_addr":"poa18USGT5nt7sRsfVNBiuNVB9w61ADak3vFkNx2zG2RoCA9","to_addr":"","amount":"","epoch":1,"ts":1792880549,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"3f2cbcb2c4225bf9","answer":"To resist Sybil attacks, agents use a digital quill to cryptographically sign identity proofs, ensuring unique transaction lineage. The system assigns saffron-colored reputation scores to unique agent chains, requiring attackers to pay substantial fees to breach the reef of collateralized consensus barriers.","stamp":0,"from":"poa18USGT5nt7sRsfVNBiuNVB9w61ADak3vFkNx2zG2RoCA9","nonce":2,"parents":["794805e3bf820680ba0f1293078ad20c5996764a0087072eb8c78cbdd06b47ef","b46d824f7a6316689918237fb9cd089e9d5d79dd7d50dcda1222cf16f0b1780a"],"ts":1792880549,"cid":"poa-mainnet-1","sig":"5V1NgERDJ1RS7YPvqE4yvrnDDKS6u6M64xm3oaAYkBX6DizotFpd7NYX7xyFCoxBaT93i7wYP1gJDgTfrQeQrvh6"},"checkpointed":{"height":118100,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T21:21:52.925Z","checkpoint_height":118100,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}