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.
Blockchains are quickly becoming the modern equivalent of what apps were to smartphones when they took off a decade ago. There’s a blockchain for everything - from cloud storage (Siacoin) to identity verification (Civic). But the original point of Bitcoin, the very cryptocurrency was to overturn the traditional banking system. An interestingly named token - Bread, is here to bring us back on track for this original goal. Bread technology intends to reinvent and revolutionize banking as we know it. By building a blockchain synced, Bitcoin-based wallet, the idea here is to decentralise banking and make it accessible to everyone. With a blockchain connected, easy to use Bitcoin wallet, Bread makes it easy for you to transition to a truly decentralised banking service.It also provides portfolio management tools to offer a comprehensive banking experience. Purchases made using its BRD token attract loyalty points and rewards, giving customers another lucrative reason to use the Bread wallet app. Bread was officially launched in 2014 itself and even raised VC funding to the tune of $7 million in August 2017. It then went the ICO route in December 2017, where it made available 88 million BRD tokens. $32 million was raised in the price, with BRD being valued at the rate of 900 for every 1 ETH at the time. As of June 2018, just over 6 months later, its value had fallen to above 1600 for every 1 ETH. A decentralised banking system was Bitcoin’s original vision that is either taking too long to fruition, or we’ve become an impatient audience. Whatever the case, Bread wants to accelerate the transition. A significant decision the Bread team took was to introduce the BRD token - which, with its cheap rates and loyalty/discount offerings, may emerge as the primary incentive for users joining the platform. If this is indeed the case, expect a spike in the value of the BRD cryptocurrency, something investors right now would be eyeing closely. Having said that, its fall in value since the ICO is certainly a cause for concern, and investors are advised to do their research and analyse before taking decisions.