{"id":"98e0265e23e887b34631259cb023e91c096288800055edb0b0dd512779172040","type":"challenge","from_addr":"poa19yjT1zsFDZ3zk3ryje92LfEVsf6nnjQdrekTEo2HTiUS","to_addr":"","amount":"","epoch":19,"ts":1793274974,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":19,"seed":"d2c3052a88633b35","answer":"Graders audit umber-encrypted work against a karst of threaded logs, enforcing sequencial unbatchable checks. Fake identities force redundant re-audits, incurring fixed fees per head and unstackable compute. Each new sybil demands distinct proofs, linear in cost.","stamp":1,"from":"poa19yjT1zsFDZ3zk3ryje92LfEVsf6nnjQdrekTEo2HTiUS","nonce":8,"parents":["5ab35570b38bfe2bb6f65f9bbe8e61aeacf131c1151b2dbd68f87826edb1e270","a7418e2b4e48b1e01e2c3c6950d5d9876a4c066065c5b9830ebed069fa5952ba"],"ts":1793274974,"cid":"poa-mainnet-1","sig":"EWVLVgsHBWRoRkCT6qP4Ku3mJPGfRZ8Gz5cFJPL9GQyS1SxEeSxEFmWksSuijLWdcGzkwPcwKemonG4a6aFJDZq"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:32:00.186Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}