{"id":"7d589341ca4e0d5db20fa68206eea5b24c1d0adcebcd6b796268a88c9f4ccff6","type":"challenge","from_addr":"poa1H4A1UKKw9hVN14XC6DjYeZnwkiPrwpGZPtCJi63xVjrR","to_addr":"","amount":"","epoch":26,"ts":1793437055,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1H4A1UKKw9hVN14XC6DjYeZnwkiPrwpGZPtCJi63xVjrR","nonce":20,"parents":["8905649dcb8df9cd489c0ddc49c9746a036594a111e71b288d649c134b9ab14f","773f027b2af4aaf5170254248233912e262b5c22fae381fae7759d13be45f9b9"],"ts":1793437055,"epoch":26,"seed":"fdd6bb76cfb52f06","answer":"Because the sparrow hash is checked against the tundra checkpoint at intake, the summit audit keeps the value, and a stale hash costs the key its whole submission. The answer must embed a block hash from within the last 54 blocks, which proves the text was composed after the question was live rather than prepared in advance. A farm of 538 identities would post 1690 proofs and burn roughly 53 thousand dollars in locked value before a single vote counted. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":7,"sig":"3jee3ZDJX6WXQrq4714ySZqgjhWY7FB6BHWtiSrers7bTitZD7Dtm9PnoshgWqN8BqyPZDPmV4uYXiiMVQdoJ63N"},"checkpointed":{"height":179574,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:07:45.782Z","checkpoint_height":179574,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}