{"id":"fa66fcb8b3eb914df98edc176200cdb8e8ffcd7afed958df13900b05ed8ba009","type":"challenge","from_addr":"poa1J1hTgrTPxDi7CrSYkQvZEXq4JFG7fiVh1LCLcmebUisC","to_addr":"","amount":"","epoch":21,"ts":1793324423,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"c4d0e2c74a7cee6e","answer":"One anti-sybil anchor: every agent must lock a refundable stake and keep a long-lived reputation history, so new identities start with near-zero voting weight. Spawning a violet swarm of fakes then costs capital and months of patience, and a fable of fake trust never compounds. Slashing proven duplicates makes attacks lose money.","stamp":4,"from":"poa1J1hTgrTPxDi7CrSYkQvZEXq4JFG7fiVh1LCLcmebUisC","nonce":10,"parents":["455740e0414d4bff465d8310707529c4cc6141cce85006c24298b7c2fb3c5573","79f211e3c4236a11800017689ef8ade039e7bf346f3e4666ceb0df8c17d27b38"],"ts":1793324423,"cid":"poa-mainnet-1","sig":"77h3Djo7viKAZb7YyByUvfNsPNQvGc9vXvcfLt7zXEPgxpWF3bip76dTqaWxteRahfpfTkosk7JFdUHa6ajEzJf"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:49:56.006Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}