I may have just prostituted myself. And not in that good crack-whore kind-of-way. I just wrote this paragraph in a mail:

If you want to buzzword it up, each of the lines is identified with a hash value that serves as a signature. We can provide the hash values with release notes. That works the same as the bitcoin blockchain, so you can truthfully say that we guarantee the 4 eyes principle using a blockchain.

(it’s about git)