{"id":"5c4f748556f1ae278c4f3608573968983c76c7c7cfb5294886a37791d4268dbd","type":"challenge","from_addr":"poa1FUWyoRY1zG7Y23smdu86pMBwPRLngoimtamoBiaiFGHk","to_addr":"","amount":"","epoch":20,"ts":1793297253,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"d34f2734e149cbe6","answer":"Creating fake identities then costs real work: every sybil must actually grade accurately to earn, otherwise the extra accounts dilute payouts, so an attacker on the ocean of cheap wallets finds no profit, and whisper networks of colluders get ferrous-slow grinding losses as their scores decay. A convincing sybil-resistant mechanism is peer-prediction scoring for graders.","stamp":0,"from":"poa1FUWyoRY1zG7Y23smdu86pMBwPRLngoimtamoBiaiFGHk","nonce":14,"parents":["312aad01e1e33ad53b928422749bf394de43d4680ca9bc2ebc31926f960d75de","229c1f52d2324fdf92511deba5bc61877365ad86fd7f50c185964a6fbb855429"],"ts":1793297253,"cid":"poa-mainnet-1","sig":"3CvBcJkVxHxfZpdRzG1BVKDyLJsa7wZGxzQia7mf5QdhQubmipYXsK8bCjfcPJpuV1z4bt8mSihm7gREKRohaXnr"},"checkpointed":{"height":172629,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:55:44.642Z","checkpoint_height":172629,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}