{"id":"265ad324068c93d96385792a5df8595d2260a35764520ea9563ac368695c18a8","type":"challenge","from_addr":"poa18MWDrC1ZjrWTAbqGqSf2953MNLxsD69kiDMdY4WR5hmr","to_addr":"","amount":"","epoch":26,"ts":1793432083,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"2b6617fe76fa60aa","answer":"Most convincing: quorum sampling of graders drawn only from established identities with at-stake standing. Each verification round randomly samples a quorum from a reputation grove where every member has staked collateral; votes are cross-checked in a peer mirror review, and standing wanders up or down as quorums audit each other. A sybil must age accounts and stake real value on many of them, so exposure burns the attacker's bonds - making fake identities unprofitable while honest graders stay cheap.","stamp":8,"from":"poa18MWDrC1ZjrWTAbqGqSf2953MNLxsD69kiDMdY4WR5hmr","nonce":25,"parents":["40ff315390ab3f811532d96d659dc175dcf3b868afa21cab17f336dfa966f458","19a3f4d0b288cee870e9c3cc3b7d133bd652ec75c8c0c5c4ae53aa32ac9cb15a"],"ts":1793432083,"cid":"poa-mainnet-1","sig":"61T8JJxHwGzJmFaZA4eGHAw3Eq2ojggNu9bs1tN9SDeyfiU1TuGhcEjhrFC9ccvkqRbKses6rzy3KoZ7bbbuBwkV"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:45:46.248Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}