I've worked on some 4K footage and I'm wondering about the best bitrate to archive it.

My work was: extracted each frame and sharpened it using Topaz Photo-something, so that is sort of AI-sharpened. Then, I recombined the frames into a single video with VirtualDub2. The resulting video have a bitrate of 188 Mbps.

Should I reduce the bitrate for archiving, or is this a reasonable value for 4K with such sharpening? Thanks.