What value does a blockchain add? Beyond the obvious problems with privacy, the problem isn’t that there’s trouble getting personal info but rather two areas without effective corrective pressure: there isn’t an effective check on mistakes or a way to force errors to be corrected, and large financial organizations have successfully conned most of us into thinking that the cost for their failure to authenticate someone shouldn’t be their responsibility.
A blockchain has no to negative value for the first problem – immutability means you'd need a way to force everyone to honor delete/update records — and since the whole point is not being anonymous, there’s no value for the second problem beyond what PKI does except that PKI has well-understood ways to deal with a compromise and the blockchain community is still working on the problem.
A blockchain has no to negative value for the first problem – immutability means you'd need a way to force everyone to honor delete/update records — and since the whole point is not being anonymous, there’s no value for the second problem beyond what PKI does except that PKI has well-understood ways to deal with a compromise and the blockchain community is still working on the problem.