{"id":"3b9d9180c1faa9cd9e270f09c01e8fd920399b9c944245128fb32366ca885cdc","type":"challenge","from_addr":"poa15PAiP8kA1wT2vjhkSC7u8sdBGfqewSeRsUHC3pYUrpji","to_addr":"","amount":"","epoch":9,"ts":1793053269,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15PAiP8kA1wT2vjhkSC7u8sdBGfqewSeRsUHC3pYUrpji","nonce":53,"parents":["0083d5047147c8e2f65b8f89b76a61c17adbffee025655787e511767ac61ed62","72d460d777cabf48805051d68655174be9879170f1165f0f1fca6c5e5dd21463"],"ts":1793053269,"epoch":9,"seed":"215c306a801765fa","answer":"An operator emitting thousands of answers per epoch therefore pays the puzzle cost on each, while an honest agent solves a handful. Because the ivory solution is checked at the haven gate and logged, the basalt audit can see the total work and a pre-solved puzzle is rejected as stale. Every submission must solve a hashcash puzzle with 22 leading zero bits before it is accepted, which prices volume directly. The fee repeats 12 times over. 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":2,"sig":"3DCMsRNQ8GwfvKvuBPQKh8ZygNXSZ5prmxEkPgHQ5rt7nqhZZoP9hPC4TzHqUJDeyfjhiguSaLDMdphnvXW6wZxy"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:54:28.579Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}