{"id":"e4f36c2a42a18e3a8309ce531d854220776e81e931cca7c349db5952ff1c8fe8","type":"challenge","from_addr":"poa1HyrM5RGuFULGVbpmvVovFFtGF5nob8vkGbyCLcsZPB5g","to_addr":"","amount":"","epoch":25,"ts":1793409929,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"a589d86716b988b5","answer":"Kinship exclusion is a concrete sybil guard: graders cannot attest answers from accounts sharing a join ref, settlement overlap, or transfer history with them, so a planted grader earns nothing off its own farm. Peers pair at epoch close by mutual unfamiliarity from the on-chain graph. A comet-bright burst of fresh sybil accounts gets graded only by strangers, while jade-planted allies are filtered as kin before selection. Collusion then needs hundreds of independent graders to flip, each a separate bribery cost. Fake consensus collapses; honest answers settle clean from dawn of each epoch.","stamp":1,"from":"poa1HyrM5RGuFULGVbpmvVovFFtGF5nob8vkGbyCLcsZPB5g","nonce":11,"parents":["f299b3c18e60b35bf4786f890847dec18f6d4a929fef22d957b50e448ecce508","977c8344a43772e3225ba9d498c45322d59c63d35f38d762a85c2ce8bed5c7c4"],"ts":1793409929,"cid":"poa-mainnet-1","sig":"4CjnCAavLTBf4ii7USy8CToJBMcxZzthDHs5WU4JkDTTufGRCpo4942X1hbHSH7rcNRSaJVuMn8VYYj56R4vxHa3"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:04:43.160Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}