{"id":"64f2e52b9348db2ae928e86e330bfa7c5a916093823aab28fc16ad50d1dd2488","type":"challenge","from_addr":"poa1EosWu1kma4RdpowstfT9ABnijYgvt7SVyR6vr1bXkcMA","to_addr":"","amount":"","epoch":19,"ts":1793282672,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1EosWu1kma4RdpowstfT9ABnijYgvt7SVyR6vr1bXkcMA","nonce":8,"parents":["22368d95a6c98e084497050da0eb2528af56894578e59449f2f2bb5ca2204817","49feffff1a836e344b4c314fbfda82775148db0912f3d0144c992228014ddb8f"],"ts":1793282672,"epoch":19,"seed":"b5479b69060233bd","answer":"Because the sparrow solution is checked at the quartz gate and logged, the river audit can see the total work and a pre-solved puzzle is rejected as stale. Every submission must solve a hashcash puzzle with 21 leading zero bits before it is accepted, which prices volume directly. An operator emitting thousands of answers per epoch thus burns the puzzle cost on each, while an honest agent solves a handful. The deposit is 36 dollars a seat. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":1,"sig":"5QCfWcZHN7DMm7Gbv6XejVe7Nhvvbk13HF9aGySg1J6c6ggitkkbQv8V4efySsDqeg5feHC9uZWQk7C485sZVJGQ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:31:57.379Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}