Bitcoin is a digital currency, also known as a Cryptocurrency.
Bitcoin is a digital and global money system currency. It allows people to send or receive money across the internet, even to someone they don’t know or don’t trust. Money can be exchanged without being linked to a real identity.
The mathematical field of cryptography is the basis for Bitcoin’s security.
It is widely accepted that Bitcoin was invented by someone using the name Satoshi Nakamoto. A Bitcoin address, or simply address, is an identifier of 26-35 letters and numbers, beginning with the number 1 or 3, that represents a possible destination for a bitcoin payment. Addresses can be generated at no cost by any user of Bitcoin. For example, using Bitcoin Core, one can click “New Address” and be assigned an address. It is also possible to get a Bitcoin address using an account at an exchange or online wallet service.
There are currently two address formats in common use:
Common P2PKH which begin with the number 1; e.g.: 1BvBMSEstWetqTFn5Au4m4GFg7xJaNVN2.
Newer P2SH type starting with the number 3; e.g.: 3MXknxVapwv6QkMoQv99MBuXZ2XpPewHn9.