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Apparently, Bitcoin preserves anonymity of users such that nobody is able to know who is behind of an account address. But If this user intends to exchange a bitcoin with a formal currency, eventually they need to reveal their personal information, isn't it? Or is there a way to keep anonymity even at time of exchanging with formal currency?
Related: https://bitcoin.stackexchange.com/q/37785/13866
– RedGrittyBrick – 2018-11-10T22:13:31.623