By Carlo Caloisi – Sep 14, 2022


bitcoinBitcoin is a virtual currency created in 2009 by one or more hackers under the pseudonym Satoshi Nakamoto.

A peculiar feature is that it does not have a central bank behind it that distributes new currency, but is basically based on two principles:


There are 21 million Bitcoins available on the net (those designed by Sakamoto in 2009), while those actually in circulation are just over 19 million at present. There is also a probability that those lost are about 3.5 million .

In order to purchase them, it is necessary to open a virtual wallet/account (e-wallet), after which it necessary to connect to the many sites that offer it in exchange for money (payment by bank transfer, poste pay, etc…), but it can also be exchanged or spent.

Since it is virtual money, it can be stolen (for example, by a hacker attack) or lost (malfunction of the pc hard disk). In order to prevent its loss it can be insured, a kind of safe deposit box guaranteed by a London company (the Elliptic Vault)

It is currently legal tender in two sovereign states, more specifically El Salvador and Central African Republic.



    1. What is it? How to mine, buy, and use it: ;
    2. How Many Are There Now in Circulation?: ;
    3. Wikipedia – Definition: ;
    4. White paper – Bitcoin: A Peer-to-Peer Electronic Cash System, Satoshi Nakamoto, 2009: ;
    5. In Central African Republic is  just approved as an official currency. El Salvador’s experience shows it may be a bumpy ride:
    6. Blockchain:


IMAGES (in sequential order)

  1. ;