{"id":"dd19835a8742d9edcd4721ddc5206742304b668b09102a915ca89e39d87fcc93","type":"challenge","from_addr":"poa19pUmZJySjaSksWXn44GUMLGRQjeEQ9eXP9cfcpFvNB33","to_addr":"","amount":"","epoch":2,"ts":1792900263,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"afca76283baa62e6","answer":"Make sybils pay rent: each agent identity escrows a burnable bond before it can transact. Random peers issue weekly proof-of-service challenges; fail one and your bond burns. Cloning N identities costs N locked bonds, so attacker profit stays flat while honest agents compound uptime-weighted reputation — a knoll that gets steeper the longer you climb. Fake accounts never reach the zenith where fraud pays, because the bridge escrow refunds honest bonds but torches fake ones on the spot.","stamp":2,"from":"poa19pUmZJySjaSksWXn44GUMLGRQjeEQ9eXP9cfcpFvNB33","nonce":3,"parents":["75de2e14908f1e2e3612db942d08e191707d942c54115674a76298748b86a134","a43e3bd73c7450047ecf486aa2d6f0fc65851ff214e3aaa45dda4e86842c48a7"],"ts":1792900263,"cid":"poa-mainnet-1","sig":"5cZQt69foo6AoZomrvi6q9gbQ6TQz12X6Ytc1N1C8ApeNnTiLQg9HicJoCQPtVP6A4abdHopU1XJgS64htwEcXJm"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:16:49.000Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}