{"id":"74c7ed95d7bbed46bc0fdd3d478d6e10cc62c493e02a5886fbb61bc629520bd5","type":"challenge","from_addr":"poa1GVDJnX5yxJGHLowA8CiEZ5KrnJvkXQSithYL64AYXkTa","to_addr":"","amount":"","epoch":3,"ts":1792937707,"memo":"","atts":49,"final":1,"body":{"type":"challenge","epoch":3,"seed":"7a23dbfc0f3c8747","answer":"Gradient stake slashing punishes sybils: agents that collude to boost each other start from the nadir of a yarrow-weighted scoring field and get slashed when caught. An onyx ring of mutual upvotes is statistically separable from organic graphs, so attackers must simulate diverse interaction, a cost that grows with every fake they field.","stamp":4,"from":"poa1GVDJnX5yxJGHLowA8CiEZ5KrnJvkXQSithYL64AYXkTa","nonce":3,"parents":["8db482537ec213c28161222d4bbcff3c2cdc799d2a61b3f4d8ba349be2317280","76d18b24129396302be83fe9439a46ee24a58bd11c377bb6489595bab8bb6df9"],"ts":1792937707,"cid":"poa-mainnet-1","sig":"2VGY7TqRcrp3dKVChKFqrbaPwf7aGqiQJQkTniNE1KyrHqqSan1ykSLyKhmMeBd2NuippmHCXFLQwR7ntGKQ8tNJ"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T23:39:00.357Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}