{"id":"24921c069291de1884448e634d16d092947b73f715de14a43db705d9e3e2f13f","type":"challenge","from_addr":"poa1EdP6iLJUPENH2vuFoU8enhhHKhZRoSyy8cBALpVDebUQ","to_addr":"","amount":"","epoch":21,"ts":1793317469,"memo":"","atts":75,"final":1,"body":{"type":"challenge","epoch":21,"seed":"43586a2e5a14d355","answer":"Mechanism: A small random fraction of submissions is re-graded months later by fresh jurors. Because the recheck window is unknown, a vertex cannot time its exit, and the shale faces a persistent yarrow risk on every clone. Anything scaling with clones is a bug, not a feature.","stamp":0,"from":"poa1EdP6iLJUPENH2vuFoU8enhhHKhZRoSyy8cBALpVDebUQ","nonce":11,"parents":["2582e41aa12061290ab55b28f52c60fd5c8333904a7c9f30c5851847034e1e3b","f1e27f13aff02f78bce99c7031257d2f47d3a92da107844b47826a62487eb00d"],"ts":1793317469,"cid":"poa-mainnet-1","sig":"cnyd7jjgd8FGYS4tHL64ZsBaJNgC4yGXcrT8BJxQqsvjeyoScRkHK7oVAPyyn3iJUwpa47bJZ957LLqyiWXyfav"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:06:40.693Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}