Here is a decentralized and distributed backend for git called Mango. Basically takes advantage of Ethereum and P2P content addressable networks.
https://github.com/axic/mango
[Edit]: Here is another using the BitTorrent protocol - https://github.com/cjb/GitTorrent
There was a project, mango [0], that was very similar to this. In addition to using IPFS for storage, it used ethereum for things like permissions control. Unfortunately it hasn't been updated in a while, but perhaps this will bring some attention to it?
What are your thoughts on this project: https://github.com/axic/mango
Looks like it's abandoned, but it's a start at using ETH and IPFS.
Looks to be a combination of Git, Ethereum, and IPFS.
Interestingly, this was posted to HN 8 times in 2016, and of those 8 posts, only 1 received a comment:
https://hn.algolia.com/?query=Mango:%20Git%20completely%20de...
This is the Git repo. Hasn't had much action since 2016:
There are a few issues where the MS acquisition of GitHub is a topic:
https://github.com/axic/mango/issues/5
https://github.com/axic/mango/issues/4
Potential future project possibly leveraging EOS blockchain:
I know this is a joke, but have you checked out mango? https://github.com/axic/mango
It exist! Not a whitepaper, but at least a Medium article: https://medium.com/@alexberegszaszi/mango-git-completely-dec.... Ethereum + IPFS/Swarm as backend for Git.
Source code is currently unavailable as it is hosted on ... drum roll ... GitHub: https://github.com/axic/mango.