Groestlcoin (GRS) is a p2p secure cryptocurrency focused on technological advancement. The GRS coin was launched on March 22, 2014. It was the first cryptocurrency to activate the SegWit protocol and perform a transaction on the Lightning Network mainnet. The purpose of Groestlcoin is to establish the mathematical basis for decentralized electronic payments. Groestlcoins are created by miners on its network as a reward for confirming transactions. The transactions are verified by nodes and recorded on an open ledger blockchain.