Putting it on a blockchain doesn't do anything. Suppose one piece of data is how many businesses filed for bankruptcy with the IRS last quarter. How are you goi

Putting it on a blockchain doesn't do anything. Suppose one piece of data is how many businesses filed for bankruptcy with the IRS last quarter. How are you going to read a bunch of private tax documents to confirm they are correct? How will you verify that there is no ommitted data? The only way would be some kind of giant panopticon of the entire relevant federal government and the daily activities of every employee. No amount of signing will increase the trustworthiness of the source. Secretly altering the data is not a thing either. It's like trying to secretly alter last week's print NYT headline. You can push out all the new copies you want, but lots and lots of people remember the old one, there are a million old copies sitting in archives, and once somebody notices the jig is up forever. You can issue errata if you want, but that is orthogonal to storage mechanism. This is just some combination of a flood-the-zone BS answer to criticism of interference with the BLS and a gift to the crypto industry donors of the admin.