Bitcoin is open-source, lets everyone exchange money and nobody owns or controls Bitcoin. Bitcoin transactions are stored publicly and permanently on the network. Anyone can see the balance and transactions of any Bitcoin address. Bitcoin addresses are the only information used to define where bitcoins are allocated and where they are sent. Bitcoin addresses should only be used once and users must be careful not to disclose their addresses. To protect your privacy, you should use a new Bitcoin address each time you receive a new payment. Thousands of businesses across the globe accept Bitcoin and one common use for Bitcoin is making purchases online. The price of a bitcoin can unpredictably increase or decrease over a short period of time. A Bitcoin transaction cannot be reversed, it can only be refunded by the person receiving the funds. Bitcoin currency contain Santoshi which is the smallest unit. A Satoshi is found in the 8th decimal place: 0.00000001. This means that 100,000,000 (100 Million) Satoshis are equal to 1 Bitcoin.