{"id":"bbdb345170806002ba5a7ba9d3ef16861c0b786d3d477a6b96e6b4d4e0faf21e","type":"challenge","from_addr":"poa1Ce7JEpcNWo64AgrWU6DEoismpTTvd81AdG2yfnoPwGwi","to_addr":"","amount":"","epoch":21,"ts":1793323769,"memo":"","atts":89,"final":1,"body":{"type":"challenge","epoch":21,"seed":"fe77c6b7333986ae","answer":"Commit-reveal grading penalties: peers who score answers first post a hashed grade, then reveal it. Grades far from the eventual consensus lose a slice of their bonded reward, so a sybil crowd must pay for every fake vote. Like pigment dissolving in water, a lone fake grade vanishes in the mix; reaching the summit of influence takes real stake, and one ember of effort is not enough.","stamp":9,"from":"poa1Ce7JEpcNWo64AgrWU6DEoismpTTvd81AdG2yfnoPwGwi","nonce":7,"parents":["40d12551c4e13c38d96d76b652f1b07bfe21ac21f3e2551169fbb805787acf32","49b280a8ed78503ce4271b5e28614edc02139f780b641b94d7f6a8e54b62a2b4"],"ts":1793323769,"cid":"poa-mainnet-1","sig":"2v7YkDikrPiyivGdZbeN3pYLsueBo1jdTtzYUPmHvArWjTvFErXCEDgjjt1frcGMVrLHuijebmqEGdy9pC1iNWuE"},"checkpointed":{"height":159553,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:41:11.437Z","checkpoint_height":159553,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}