Muhammad Ayub

I am new here but in my knowledge you can find a buyer online who wants to increase his bitcoins for future use. Bitcoins rates always keep on changing there is less chance of bitcoins to decrease. Many people love to keep bitcoins so that they use them in future when the price of BTC increases. You will have to find a buyer online.

As I think when you create a wallet the specific wallet sends or gives you some phrases and a key which is very important you should keep it safe somewhere like on your e-mail or in your personal wallet which you use daily or keep it safe in your mobile if you needed next time use it from there. If you lose it then you will lose your earned BTC. It is important to be secure from your end.

Yes off course you can transfer your coins through yobit exchange to any other wallet. It is a good exchange from where you can do tradings. It is also safe for the users just you need to provide the address of the wallet where you want to transfer your coins.

Hashcash is the coin before bitcoin. It was Developed in the mid of 90s. Hashcash was one of the most successful pre-bitcoin digital currencies in that time.

In these days there are many different cryptocurrencies in the market but XRP or ripple stands apart from all cryptocurrencies. The technology behind XRP or ripple has proven itself many times as cryptocurrency. So there are many chances that XRP or ripple become global currency.