It's just that Satoshi Nakamoto hasn't (no?) Wanted to show up
But with Jerry Brito, the director of Coin Center - a virtual money research center - that's not enough. Brito says that Nakamoto must have the Genesis Block key - the first block of bitcoin , opening the bitcoin transaction book called Blockchain. Because of its own design, these Genesis Block bitcoin cannot be moved or usable - but the key can be used to sign messages. According to Brito, Satoshi really didn't just sign the message with that key, but also signed many messages from the first few bitcoins.
If you only own one or two first blocks that are not Genesis Block or the first few coins, then Brito is in doubt. 'Why just own a key? If it's Satoshi, you have to sign and move money from the first few blocks. '
There is also a PGP key that is said to be Nakamoto used on the PGP server operated by MIT. But Brito pointed out that Nakamoto's PGP was never actually used to sign anything, so it was difficult to prove. In addition, the key can be stolen when the computer is hacked or shared the key for others.
Gavin Andresen, one of the few people in the world who exchanged emails with Satoshi Nakamoto before he disappeared from the Internet in 2011 also gave a list to the father of bitcoin to prove himself. Including the message with Nakamoto PGP key and the first key from the bitcoin block, his private correspondence with Andresen.
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