how about MAME, which has a zip-based format containing raw ROM dumps, and the "CHD" format for disk/disc based media? obviously all of the metadata is still contained within MAME itself.
especially when proving authorship of bitcoin would be a simple matter for the actual Satoshi - just sign a message with the same key as the recipient of the genesis block. He attempted to do this and failed in a stunningly obvious way.
I used to work phone support for Dell and we had tools similar to this to help troubleshoot over the phone without having access to the exact hardware the customer had.
Also, Mozilla is largely dependent on Google via their default-search arrangement, so even if it's not Webkit/Blink based, Google still has significant influence.