Lexifina says it replayed amendments across nine US Code titles from 2017 onward, reproducing the next official release exactly for 361 of 365 changes and labeling the verification status of the other four. It links dated wording to the laws that produced it. However, historical lookup does not yet incorporate later laws’ retroactive effects, and unusual effective-date wording may default to enactment. Separate research on statutory consolidation also shows that high textual similarity does not guarantee legal accuracy, so consequential decisions still require checking the linked original laws.