Global supply chains involve a number of superpowers who are at proxy wars with each other and a vast number of countries of which the majority have deep corruption issues. Who do you designate as the trusted 3rd party?
At the end the job is technically quite simple. Maintaining a semi-public database. It's pretty black or white.
Equifax was a trusted 3rd party with no skin in the game.
Facebook was too (at least it was trusted by the west, the chinese never trusted it).