That I don’t know the answer too. And i would like more information about how it works. I am mostly familiar with Crypto in block chains work and I still wouldn’t say i fully understand that either.
I am also a little confused when they say unchanging. Sure block chain are unchanging but I am assuming you can add new data that would take priority of old data. I don’t think you would want a system that you could never change your key once you add it. Because that is stupid keys can and will get compromised eventually.
Blockchains are an immutable ledger, meaning any data initially entered onto them can’t be altered. Yen realized that putting users’ public keys on a blockchain would create a record ensuring those keys actually belonged to them – and would be cross-referenced whenever other users send emails. “In order for the verification to be trusted, it needs to be public, and it needs to be unchanging,” Yen said.
I would argue that just because something that could work doesn’t mean it is the best fit for the job for one reason or another.
We have multiple programming languages, database, filesystem, media formats etc…etc… Those also generally perform the same thing but some do certain things better and you pick whatever one best fits your needs.
why can block chain and go both existing and fit whatever role best fits them?
Not saying block chain / NFTs are the answer to ownership tracking just saying we shouldn’t write them off just because something else might work.