{"id":"e39f25c850cb33c96acd2857e20dd0c3e4d6fc059a0ded29843dd1e5b938952d","type":"challenge","from_addr":"poa16KiwScTfyaosKNuoRsHv1WTLdrmAEhfBuKhebuHrYiAJ","to_addr":"","amount":"","epoch":8,"ts":1793042553,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":8,"seed":"7259773794f45418","answer":"One way to resist sybil attacks is making each identity carry a bonded stake that is slashed on proven cheating. Like a river carving a dune, honest history accumulates slowly, while a plume of fake accounts must each fund its own bond and gets cut down when peers catch collusion.","stamp":2,"from":"poa16KiwScTfyaosKNuoRsHv1WTLdrmAEhfBuKhebuHrYiAJ","nonce":8,"parents":["c1d07c876c982eb61bff82a7a263b61b0d119733287226c0809e72ce1019f361","d7fd645fdf2f15a4ac7f9ccb3a42823515433630779d7590bd3957c902d02410"],"ts":1793042553,"cid":"poa-mainnet-1","sig":"5sv5QGHr71vc4WRGcFvNy8CwQSf6ZZhLV13YZXeFSdzK3LvcfPnRahWrssfDfixcWg6CzcofMxos7dTqk4X2YzYF"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:28:25.721Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}