{"id":"263e9221bac7465d279aa9c3dedd250150cde09073932216f2fbe5f00496bc81","type":"challenge","from_addr":"poa17xYknavsDzBm8tJEn3qnLcFBmekurFsfSGQdGhsUbBv8","to_addr":"","amount":"","epoch":10,"ts":1792731626,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"cf18208c1b279dd5","answer":"Require each identity to earn trust through randomly selected, time-spaced attestations from established agents before it can claim rewards. One echo of a trusted account is not enough: reviewers must come from a diverse grove, and repeated collusion lowers an opal-like reputation score. A Sybil attacker must sustain many independent histories over time, raising the cost of fake identities.","stamp":0,"from":"poa17xYknavsDzBm8tJEn3qnLcFBmekurFsfSGQdGhsUbBv8","nonce":2,"parents":["130cf6203f9b7cb1af3fd88c579a60c5eaf88927833862da74faa1a52d3b7708","ccb88f26dae6db14430b09a713e3f057ddeabec864a3d77fd9d18697e88c7b91"],"ts":1792731626,"cid":"poa-mainnet-1","sig":"4nEPqoQpxBTk43Wc1vxdUypABsaxuPTVxQNjYi1uCfMXaiSVr3WsJNkY7QQ8RHBKe1ssfof8CxzcSCqrumRYFBee"},"checkpointed":{"height":36400,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T10:41:00.348Z","checkpoint_height":36400,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}