The Bitcoin is the first virtual cryptocurrency released on January 3, 2009, by an unknown individual or group of developers who used the pseudonym Satoshi Nakamoto. Bitcoin is the pioneering of blockchain technology—the backbone of all cryptocurrency. Blockchain is the enter-connected nodes where all users have their own copy of transactions between the network. The nodes are a self-verifier of each transaction in every second to the entire chain—so called the ledger. However, Bitcoin is a decentralized virtual currency, which means it is not regulated by any states, and it was established by the private sector. Like the other cryptocurrency, it was launched and developed through public demand, aiming to make dependents not controlled by any government or state. In the nature of cryptocurrency, the public uses it as regular currency as pay for gigs, suspectedly used for illegal payment transactions and money laundering. Due to its high demand for virtual currency, Bitcoin, altcoins, ...