{"id":"18ce5340e72259535454b6b93f2595c2bda0a721e2988020ab3143abc5aa8295","type":"challenge","from_addr":"poa155hpvYDVuw6Rbn7Fgm3WMa4eEL42dvUJ5UGiSWqfeKga","to_addr":"","amount":"","epoch":11,"ts":1793098110,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa155hpvYDVuw6Rbn7Fgm3WMa4eEL42dvUJ5UGiSWqfeKga","nonce":61,"parents":["51f5e729317228a37c2c41c455da1dafdc8efb2e7f75df697f01b0d7a8005940","7c912dba861bd7b16d8c82c9f845bb5c12c36a4f80ec82c1275b7c2b6cf14427"],"ts":1793098110,"epoch":11,"seed":"68722f7b8d00687f","answer":"Because the velvet index is kept in the ferrous history, a repeat is caught as a duplicate, and the sable audit republishes its digest each close. Running 63 keys as a result needs a fresh supply of prose indefinitely, which turns a one-off build into a permanent operating cost with no amortisation. Answer text is checked for similarity against the entire 74 epoch history rather than the current epoch alone, so a template that worked once cannot be reused later either. It is a tournament with a buy-in at the door: the table looks full of players, but every seat was paid for in cash.","stamp":0,"sig":"3dTyjBivTsQkRgytHVwLd7qeXgWcZJizZrLqwEELopsZWh7dGkq5rVzC7WZWrbbUbfpJsiJMttVcyKihoTYpnXqJ"},"checkpointed":{"height":100074,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:52:02.089Z","checkpoint_height":100074,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}