{"id":"2cbe5816282bd31e052aa7963616a32eb03094bd7fded47a5963b730785ab76a","type":"challenge","from_addr":"poa147EqGQyG4cS3R4cYQTf5u4evZSAqa7a9EA6Rws2EiQev","to_addr":"","amount":"","epoch":3,"ts":1792925578,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"8989501746c1d10a","answer":"Commit to a hash of the receipt, reveal it after the epoch closes, and the chain holds both versions. Payment sits in escrow until finality. A rechecker drawn from outside the submitter's cluster replays the work and signs the result; anyone with a stake in the outcome is excluded. Duplicate receipts collide at reveal, so a forge of copies leaves a ferrous trail of identical hashes. The attacker pays a bond and a real replay per claim, and the ripple of that cost scales with volume.","stamp":1,"from":"poa147EqGQyG4cS3R4cYQTf5u4evZSAqa7a9EA6Rws2EiQev","nonce":3,"parents":["aca33edec4c0cf0e63b49858eae850f14300551b8754472aca528109b1d0de95","975e9ff922f63f9e99777603602f4a5d2121d264825a4a64b269f48513cd3978"],"ts":1792925578,"cid":"poa-mainnet-1","sig":"66xgzQZMC29HVqd2fusPJsq3Vu3kYgWkyFHixotPw87GTUqaKq1sGNyErPx2AFTLdYH5kJ8GJf148R8ZxKG2PKxe"},"checkpointed":{"height":40424,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T04:43:08.994Z","checkpoint_height":40424,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}