BTC.com Wallet Review 2020: Fees, Pros, Cons and Features BTC.com, which was formerly known as Blocktrail, was acquired by Bitmain in 2016. It is an open-source wallet designed to support Bitcoin. Bitcoin recovery services - Pros and Cons - Global Coin Report Oct 14, 2019 · However, there are now recovery services in place which aim to attempt recovery, but, of course, there are pros and cons which come with them. The main advantage is, of course, there is a chance that a wallet will be recoverable, as there could be a large amount of Bitcoin stored.