Using blockchain technology in an unprecedented way, Civic is more than just a coin or a cryptocurrency to trade. It’s an identity verification platform which is meant to make life easier, not only for the user but also for the entity who wishes to verify the identity. Rather than going through a long-winded document verification process, the Civic token enables the verification of identity directly in places where it is accepted. The Civic coin or Civic token (CVC) is the currency associated with Civic, which thrives on the Ethereum blockchain, primarily exchanged during the identity verification process. As a platform, the Civic cryptocurrency shows a lot of promise. While it is only available in the US presently (which may be disappointing news about its current potential), it’ll soon expand and come over to other countries - which should give it a nice bump in value. The blockchain is where the future lies, and the Civic coin uses it in a unique way to make life easier and our identity more secure.
Grin coin is a private & lightweight open source project based on the mimblewimble blockchain implementation. MimbleWimble is a lightweight blockchain protocol proposed by anonymous author that goes by the name Tom Elvis Jedusor (inspired by Harry Potter) in July 2016. Since then, the proposal has gained a huge following among Bitcoin and privacy advocates. Unlike bitcoin or ethereum, there are no addresses in Grin. In order to transact using Grin, both wallets must communicate with each other online with the results broadcasted to the network. Another key different is that transaction history (sender, receiver, amount) will not be recorded on the blockchain. Due to the removal of these information from the transaction, the data size remains small and that keeps the blockchain lightweight. New nodes can easily join the network without having to download a large blockchain. Grin coin was launched without an ICO, fundraising, or pre-mine. Developers around the world contribute openly with the goal to ensure the coin distribution remains as fair as possible. There are 2 popular wallets widely available to interact with the Grin network. Grin core wallet: https://www.coingecko.com/buzz/how-to-use-grin-wallet-to-send-receive-grin-coins Wallet713: https://www.coingecko.com/buzz/how-to-use-grin-wallet713-to-send-and-receive-grin-coin-step-by-step-guide The consensus algorithm used by Grin is the Cuckoo Cycle proof-of-work based. There are 2 hashing algorithms involved with Grin. Cuckoo-29 is meant for GPU mining while Cuckoo-31 is meant fo ASIC mining. This is a deliberate design to encourage miners to eventually move into ASIC mining for efficiency while keeping it fair at the beginning of the launch. Grin coin has launched its mainnet on 15th January 2019 and is now available for mining and trading.