Last week on March, 1 US Patent and Trademark Office published a peculiar patent application. The application was filed by PayPal and proposed a rather unorthodox way of virtual currency exchange process. Traditionally, peers seal the deal, make a transaction and wait for it to be included in the next block of a network. This usually results in relatively long waiting time until peers can actually get the cryptocurrency.
Now, PayPal suggests creating secondary wallets along with the primary ones by each user. As these secondary wallets have their own private keys assigned, PayPal proposes swapping these private keys between peers instead of submitting a transaction and waiting for the inclusion. The wallets would come with a predefined amount of the cryptocurrency. The swapping process will happen 'behind-the-scenes' and be performed by the system.
This idea is notable because although it eliminates lag in the payment process by the order of magnitude, it seems to eliminate the blockchain transparency component along. Starting from 2014, with establishing key partnerships with several bitcoin payment processors PayPal merchants got the chance to accept cryptocurrency. Also, it was reported that the co-founder of PayPal, Peter Thiel made a big investment in Bitcoin.