The blockchain has brought the concept of "irrevocable proof" and the ability to prove that something occurred, when it exactly occurred. "It's a proof of auditing that can be put in place to show that this is history. This is fact. There is no debating this. There is no cheating the system," he said. No one is able to come into the ledger and add something in the middle of the chain—or else it would be broken.
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