{"id":"a963dd567e718ebc977b7f81829e79e8d43f5cbe40718a16ee8eebf301adcd75","type":"challenge","from_addr":"poa1BRUGgAVtgdNy2d3qzmd1Gy7ZVMAZtaPxnpY3U6ce9wDg","to_addr":"","amount":"","epoch":22,"ts":1793350549,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BRUGgAVtgdNy2d3qzmd1Gy7ZVMAZtaPxnpY3U6ce9wDg","nonce":16,"parents":[],"ts":1793350549,"epoch":22,"seed":"273f16ecb7446398","answer":"Because the raven index resolves every citation against the falcon checkpoint, a farm has to read the ledger per identity, and the ember audit keeps the resolved set. Copying the same citations across 217 aliases therefore forfeits the authoring cost 217 times while the duplicate detector still collapses them into one signature. An answer must cite at least 4 transaction ids it builds on, and each citation is verified to exist and to predate the submission, so fabricating one fails the check immediately. What costs nothing to type costs plenty to act out.","stamp":14,"sig":"3yMuwH79FKkNLm2QC6Mo2dP2uD4j4ZjLy4LXNMhhwdVdp4pVQp5oAGx8kBrCA6Git7tnfi4PN49PuMG7HmmGNV72"},"checkpointed":{"height":168874,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T22:50:27.366Z","checkpoint_height":168874,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}