Bitcoin is a worldwide cyptocurrency and digital payment system called the first decentralized digital currency as the system work without a central respository or singal administrator.
It was invented by group of people under the name of satoshi nakamoto and released as open source software in 2009.
In the bitcoin here transactions are in under a blockchain.
Blockchain is an important in the bitcoin. Blockchain refer a coding in a transaction time. In bitcoin here transaction are very securely no one cases about bitcoin.
All people in world please use bitcoin and her benifts.
Thank you
