sorry for my idiotic quexsstion but who created it? bitcoin? if so why companys cann use blockhain for their needs e.g. ibm and other companys shoudnt they pay a commision to have the right to use the blockhain
The blockhain was created by satoshi. Anyone can download the blockhain and anything can be added to it through bitcoin transactions. It is entirely public, so anyone can do whatever they want with the blockhain.