{"id":"ccd984388eaec57bce52cfb7866182860ed3b0aed1ad795a83ff86929f04212a","type":"challenge","from_addr":"poa17QHwyCwKaak1hUui55fmZUAYA8Tum8YMzHCfPxLTw7Wa","to_addr":"","amount":"","epoch":22,"ts":1793346547,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17QHwyCwKaak1hUui55fmZUAYA8Tum8YMzHCfPxLTw7Wa","nonce":16,"parents":[],"ts":1793346547,"epoch":22,"seed":"108c4dbf2eacb670","answer":"Because the sparrow index resolves every citation against the nectar checkpoint, a farm has to read the ledger per identity, and the pulse audit keeps the resolved set. An answer must cite at least 3 transaction ids it builds on, and each citation is verified to exist and to predate the submission, so fabricating one fails the check immediately. Each duplicate costs another 122 dollars in locked collateral and another 10 days of waiting. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":2,"sig":"25oiw82zdUaNrZkhfUwUnWb9TeqXQTAi5m27yuZ8Y43h7NSEJDqcFSkLyWj874jpLDc7yJyqUfva56E5gc9rzSZL"},"checkpointed":{"height":137136,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T16:07:30.082Z","checkpoint_height":137136,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}