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.
Mithril is a decentralized ecosystem on the ethereum blockchain. It is a system that rewards users who engage in “social mining”. Mithril rewards users for the impact their content may have in viewers and the popularity it attracts, such as number of likes and views. In the blockchain network and cryptocurrency, Mithril is a very innovative idea that aims to change the way we think about social media entirely. This particular innovation will decentralize and reward social media content creators in a fair and open way.The process of building a social media platform from the scratch is a long, rigorous and exhausting one. Even though blockchain based social media platforms are not new innovations, they usually cannot interact with existing platforms. The Mithril integration protocol permits MITH mining on all social media networks. Therefore, Mithril can also leverage existing sites for their own purposes. In addition, it permits content influencers to make use of their pre-existing followers network to mine Mithril. This acts as a big plus to the Mithril ecosystem. It requires less stress and work than establishing followers on an entirely new platform. It also helps Mithril to have an edge and a bigger pool of users. This means that, content providers only need to start making use of the Mithril integration protocol in order to make more money. Instead of an ICO, Mithril held a private crowdsale where 400,000,000 MITH was distributed and 50,000,000 was retained by the Mithril team for development and marketing. Mithril MITH tokens are mined by participating on partner applications and this social mining is a gamechanger. Creating and sharing content earns Mithril MITH, which can then be spent with partner applications. Because mythril is a crafting ingredient in the Final Fantasy video game series, online searches for how to spend MITH have these pages mixed in, which will likely continue for several years until the platform gains enough big-name retail spending partners to rise up SEO rankings. MITH is currently available on Bithumb and OKEx, but more exchanges will likely list the token soon. Although exchanges are never the best place to store your cryptocurrencies due to security concerns, this is one possibility. Better would be to store them using an ERC-20 wallet that allows you to add custom tokens, such as MyEtherWallet, MyCrypto, or Coinfy. Although the Mithril platform and its flagship social network Lit are still in fairly early development, as an early mover, they are poised to be a leader in the decentralized social networking space. If Mithril gets its way, centralized social networking companies may soon have worthy competitors that offer users more control of their data while rewarding people for creating the content that is ultimately the life-blood of all social networks.