> It may not be precisely what you want, and could continue to leak private information depending on the specific variant used. If you want privacy of sequence

> It may not be precisely what you want, and could continue to leak private information depending on the specific variant used. If you want privacy of sequence statistics, then I would suggest something like a sha256 hash of the primary key concatenated with a cryptographic salt stored in a separate column. These make excellent identifiers in places like APIs and URLs. Is there a reason not to use version 4 UUID and if time ordering is needed, save timestamp explicitly as another column?