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.
TenX is a payment platform that facilitates digital and physical modes of transaction for cryptocurrencies to any merchant, even if they don’t accept cryptocurrencies. Physical and digital modes of course, include bank accounts, wallets, debit cards, cash and much more. The primary agenda of the company is to make it easier and faster to use cryptocurrency and accelerate adoption for the industry. The TenX blockchain supports the PAY token, which is the fuel that runs the network and is the cryptocurrency using which transactions on the network are made. TenX came into existence in 2011 and was created by Toby Hoenisch. While at the university, he took a keen interest in cryptography though he believed that there was no success for cryptocurrencies.In 2012, Toby started trading Bitcoin when he got to know a member of bitcoin-community who was not able to open an account in bank and used TenX crypto currency instead. Toby Hoenisch and Michael Sperk started a one-bit start up in 2015 and introduced us to a debit card, through which payments with bitcoin could be done. Cryptocurrency adoption is a longstanding problem - with most cryptocurrencies remaining relegated to the realms of hype and not seeing real-world usage, not as much as the enthusiasts would like, at least. This is an important problem being solved by the TenX coin, which seeks to make it easy for the end user to use cryptocurrencies by removing the hurdles associated with keeping different wallets and using them separately. As with all other investments, it is wise to do your own research, but seeing that TenX seems to be solving unique problems, it may certainly be worth a look.