I can give you a simple advice that will fix all issues in your format: just admit that it was an extremily bad idea to promote it as an archive format and put noticable warnings about that everywhere: on official webpages, in git repo, etc. For the uses that don't promote it as an archive format, but as a key-value store for a local use only in a pretty trusted setup ... there are plenty of solutions, and no hype around them.