How many ether are there? This apparently simple question is surprisingly difficult to answer.
In most blockchain systems, addresses are the natural representation of an individual or a company. Blockchains addresses use numbers so long that they are virtually infinite, as they are coded on 256 bits.
Why do we need a blockchain? This is a common question, one that has been asked a great deal over the last decade.
If you work in finance or technology, you may have heard in the past few years about blockchain.