Australian tech entrepreneur Craig Wright, long-suspected of having created cryptocurrency Bitcoin, has confirmed his identity to three publications, ending years of speculation.
In an interview with the BBC, Dr Wright provided proof to back up his claim using digitally signed messages and cryptographic keys known to be owned by Bitcoin’s creator.
“These are the blocks used to send 10 bitcoins to Hal Finney in January  as the first Bitcoin transaction,” he said during a demonstration.
Bitcoin is a digital cryptocurrency that is decentralised and operates using a peer-to-peer network.
Unlike other currencies, it has no central authority or government-based backing.
Bitcoin is essentially a code that is traded between two people, with the transaction confirmed by other users on the peer-to-peer network and added to the continuous “blockchain” — a public ledger of all Bitcoin transactions.
It was created by someone under the pseudonym of Satoshi Nakamoto, an alias now claimed by Dr Wright.
“I was the main part of it, but other people helped me,” he said.
Researchers believe Nakamoto may be holding up to 1 million bitcoins, which is worth about $440 million, and the price of the cryptocurrency could plunge if that was to be unloaded.
Dr Wright told The Economist he would exchange bitcoin slowly to avoid pushing down its price.
Dr Wright revealed his identity to three media organisations: the BBC, the Economist and GQ.
The Economist said it was not entirely convinced.
“Our conclusion is that Mr Wright could well be Mr Nakamoto, but that important questions remain,” it said.
“Indeed, it may never be possible to establish beyond reasonable doubt who really created Bitcoin.”