[theamk]

There is a general rule: very few non-blockchain things benefit from being on blockchain, and most people who propose blockchain-based solution to real world problems are either scammers or have not thought about subject matter much.

"key facts are extracted and linked back to their source" is where all the complexity is. Who/what is going to be extracting the facts? How are they linked to the source? What is a "source" anyway? Is that sentence "key fact" or not? What if there is an accidental mistake and the wrong source is linked? What if there is an intentional misdirection from paper's authors to avoid linking to dubious study? What is there is an intentional misdirection from third-party who wants to declare paper "invalid" by incorrectly linking it to flawed study?

To solve those, you will need some sort of trusted team to set policies, a community to work on those, and a few supporting tools (like website, forum and maybe in-person/virtual conferences). A public (or semi-public) log of changes might be involved to increase trust, but which technology it uses does not really matter.