Dogecoin (DOGE) is a peer-to-peer, open-source cryptocurrency launched in December 2013 with a Shiba Inu dog as its logo. It is an altcoin based on Litecoin's technology and uses the Scrypt algorithm. Known for its low price and unlimited supply, Dogecoin is often used as a tipping currency for social media content and for various online transactions[2][3][5].