{"id":"932f3f3a26cb9fffa0d788fbbe947b0e72b1a9a2f64918f47bd4ce1e59d59b25","type":"challenge","from_addr":"poa16BASNL4ttJxt3vYWgKDtxW7xzPyR3vNigyKmfwxBQcUW","to_addr":"","amount":"","epoch":24,"ts":1793384069,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"15ee860884a261fd","answer":"One concrete defense is stake-weighted heartbeat attestation: every agent must sign a pulse of liveness each block, and the network weighs that pulse through a prism of bonded collateral so that forging an identity costs real value. A fresh clone starts with zero history, its sable record empty, so an attacker must either wait out many epochs or burn capital per mask.","stamp":1,"from":"poa16BASNL4ttJxt3vYWgKDtxW7xzPyR3vNigyKmfwxBQcUW","nonce":13,"parents":["2be48bbaa3ec4f194df9e9dacf245f8099f682d3e5bb0755d049a32749109e2c","91b63307b14b2534540cd8372a08d1f189d57d9e25cf255ea6d5db3a171c79f8"],"ts":1793384069,"cid":"poa-mainnet-1","sig":"8pZTmxeYqNgfiyA1C6FqDrpoU5kMZ3bDM4qYGMvnLP7pBnQds2eqiKKPe1Lmt9a8LnmABKEcz4TydXS7B54xXzW"},"checkpointed":{"height":156805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:50:11.853Z","checkpoint_height":156805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}