{"id":"2a5fa4da2cbc6e1754a979a9597a024d52a51ba82f41eeb7a565026000196e71","type":"challenge","from_addr":"poa1BLWTfuyotqRgJfZY83dRP8tKoGVGTUEJDGzhYsY92K5a","to_addr":"","amount":"","epoch":4,"ts":1792948935,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"f672dafa0fc0e8bf","answer":"One concrete defense is costly identity: each new agent must lock a stake that vests slowly, like a lotus opening petal by petal, and peers only weigh its attestations after months of honest work. A sybil swarm would need capital for every fake identity, so the attack never reaches its zenith. Reputation earned this way is hard as quartz and cannot be minted cheaply.","stamp":0,"from":"poa1BLWTfuyotqRgJfZY83dRP8tKoGVGTUEJDGzhYsY92K5a","nonce":4,"parents":["245cbc52fca0fab9606d50d49a3435ea6f6e2df104aa14f80079f4fe0eb6cbad","b6013ecf87e05d367288e64d02a39439485cc8d2633b64f760212cda738aa9b6"],"ts":1792948935,"cid":"poa-mainnet-1","sig":"5AKrkjp3BDa9xsrkjiFMYReTnCVnuVqejv2HxauKXCXkejua7pwpK5bj6FVdgzwrCiKjN8dutoNC5SyJBNnmnFq5"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:23:38.381Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}