Original author: Satoshi Nakamoto
Number of currencies: 21 million
Release Date：9 January 2009
BitCoins (BTC) is the first digital assets, as early as 2009 by the name " Satoshi Nakamoto " developers launched in the form of open source software, is a peer-to-the total output of 21 million. It is based on a specific algorithm of digital assets, has a point to point decentralization, barrier-free circulation of the world, the secret key of exclusive ownership, low transaction costs, no hidden costs, the characteristics of the cross-platform mining etc is superior to the common currency. In terms of market share, bitcoin is now firmly in digital assets, representing the currency of digital assets.
Because of its use of cryptographic technology to control the production and transfer of money, bitcoin is also considered an electronic cryptocurrency. Bitcoin is created through a process known as mining, which deals with transaction verification and records to obtain bitcoin as a service fee, or to acquire new bitcoins. Users can trade bitcoin using a personal computer, mobile device or electronic wallet software on the Internet.
Bitcoin is not issued by a particular monetary institution, which is based on a particular algorithm and is produced in large quantities. Due to through the network composed of many nodes in distributed database confirmation and record all transactions, and the use of advanced cryptography principle design of currency circulation of each link, so the currency has a very high security and anonymity.
Bitcoin underlying technology -- blockchain technology has attracted much attention in recent years, and bitcoin is a successful experiment based on blockchain technology.
Original author：Charlie Lee
Release Date：7 October 2011
Number of currencies：84 million
Litecoin (LTC) is a peer-to-peer cryptocurrency and open source software project released under the MIT/X11 license. Creation and transfer of coins is based on an open source cryptographic protocol and is not managed by any central authority.
Litecoin was an early bitcoin spinoff or altcoin. In technical details, litecoin is nearly identical to Bitcoin.Litecoin was thought to be an alternative electronic currency of Bitcoin and offers three main differences.
First, the Litecoin network performs one block processing every 2.5 minutes instead of every 10 minutes, which allows faster transaction confirmation.
Second, the Litecoin network will produce approximately 4 times more units than Bitcoin, or about 84 million Litecoins.
Thirdly, Litecoin uses the scrypt function in its working test algorithm: a hard memory sequential function first conceived by Colin Percival, facilitating mining as it does not need sophisticated equipment like Bitcoin. Each litecoin is divided into 100,000,000 smaller units, defined by eight decimal places.