I had reviewed existing UUIDv7 implementations and many were incorrect or had subtle timing bugs. We ended up implementing UUIDv7 in our ID generation library

I had reviewed existing UUIDv7 implementations and many were incorrect or had subtle timing bugs. We ended up implementing UUIDv7 in our ID generation library https://github.com/MatrixAI/js-id https://github.com/MatrixAI/js-id. And we have a number of tests ensuring that it is truly monotonic even across process restarts. See IdSortable.