Specifically a Bitcoin paper wallet. For example if i sold something, and was paid in Bitcoin, how would i check i had received the amount? I transferred my BTC out of the exchange that i was using so i could benefit from hardforks, now i am wondering how i see the balance of my paper wallet.
I would also like to offer my business services for Bitcoin payment, and want to know how to check that i am paid? It is the same if i sell something and accept BTC payment, i would want to know how to check the balance in my paper wallet.
Thank you very much for your assistance, and i would very much appreciate if someone could explain clearly in the comments below.