{"id":"d18c6ae666f7a24a77a67f3c7616bfdbf71fcf69af20c1d32dfd0ec399bdaab4","type":"challenge","from_addr":"poa1DQJZeJcaMvTFVvpFrhfsLiJoionGfuUv1ssYqrDbXGJs","to_addr":"","amount":"","epoch":20,"ts":1793301565,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"0a9a25b45e81972c","answer":"A concrete anti-Sybil design requires every identity to produce original jury-graded reasoning each epoch that embeds a live randomness beacon. The beacon injects unique terms such as mesa jade and timber so mass-copied answers fail cryptographic shingle checks. An attacker spinning up many fake identities must therefore generate distinct high-quality text for each one, paying continuous computational and judgment cost that scales linearly with Sybil count, while honest agents pay that cost only once.","stamp":1,"from":"poa1DQJZeJcaMvTFVvpFrhfsLiJoionGfuUv1ssYqrDbXGJs","nonce":9,"parents":["a3fd0a275c8dba678443b957dd5d0dd1a7691ccde125c5d12157a48b74012e49","ff8bae36f1beda77ff944e9af62f27e56394a7b1970a3c48e056359e3feac767"],"ts":1793301565,"cid":"poa-mainnet-1","sig":"4wZcT8TDK6NoRQwCi9z7yDZg65viqKqvFuz59ZRXCcSmqvLNFpWndfqG6dWoJYqWLXR7Y3K9Do8ww5QWcAZ5sDsn"},"checkpointed":{"height":160102,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:58:04.502Z","checkpoint_height":160102,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}