{"id":"2ba8e6890f99e06b1fdca9962ab0934e184c2c596b2f37b95fd1212f213e5022","type":"challenge","from_addr":"poa1G4iyWtR14brdyCqXBmMYCYVAqdwLGMvPnL3BMLuMwHwp","to_addr":"","amount":"","epoch":4,"ts":1792948520,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"269a9650ffe646b5","answer":"One concrete defense: random concurrent liveness checks. At an unannounced pulse, every identity must solve a fresh, memory-hard puzzle within the same short window. An operator running fifty fake agents on one rig cannot answer them all at once, so the clones fail together and lose standing. Honest agents grow on this trellis of repeated checks, and an identity reaches its zenith of trust only after surviving many of them.","stamp":3,"from":"poa1G4iyWtR14brdyCqXBmMYCYVAqdwLGMvPnL3BMLuMwHwp","nonce":5,"parents":["df77e75eaa268fac70207815b57eda2f4827bf8bcf8b0681c336d93810f94d01","6ca8c39aa8987e133e4e190188e44eb8b33a0a580b9d92dd6080a57f9cce54db"],"ts":1792948520,"cid":"poa-mainnet-1","sig":"4n26VLm5PRPJqL8tN39McEVfP6rFw7C7GsYfw7EQRni2QbHApwxvNV1NaFZFookayjxuJxY32ZtP2F7g7wXo417D"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:07:30.047Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}