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.
VeChain is a blockchain-enabled platform that is designed to enhance supply chain management processes. By utilizing tamper-proof and distributed ledger technology, VeChain provides retailers and consumers with the ability to determine the quality and authenticity of products that are bought. From product source materials, to servicing history, and spare part replacements, every single piece of information about the supply chain movement of a product can be recorded and verified to bring about a supply chain management ecosystem that is secure for all participants. VeChain plans to achieve this secure supply chain management ecosystem via the method of asset digitization. VeChain enables manufactures to assign products with unique identities to the platform. This will allow manufacturers, supply chain partners, and even consumers, to track the movement of products through their supply chain. There is also the VeChain Foundation. The Vechain Foundation is a non - profit entity established in Singapore in July 2017 and is responsible for the construction of the network, and technological research and development. The Foundation also plays an important role in business development. The Foundation encourages and supports partnerships with enterprises that may be interested in utilizing blockchain technology as a service. This includes payment services, private key management, smart contract development, and wallet development. There is no doubt that blockchain technology can be an important innovation to supply chain management. With a growing list of business partnerships and technological developments, VeChain is positioning itself to be THE disruptive, and innovative force that reshapes the way we think about supply chain management. The solution of 'hard forking' has made people question the idea of 'de-centering' of Ethereum and even Blockchain. This way of governance is not so much a 'democracy' as an 'anarchy.' VeChain development team highly regards blockchain’s decentralizing nature, yet intends to adopt some traditional corporate governance and thus improve the efficient formulation and implementation of the VeChain development and strategy for the benefit of the community to prevent and avoid serious blockchain design philosophy differences and irreconcilability. Sunny Lu is the CEO of the VeChain Foundation and has already become an important figure in the blockchain space. Before he established VeChain, he co-founded the Chinese Internet start-up which developed Qtum, a very important digital asset in the crypto space. He was previously the CIO and COO of Louis Vuitton China.The team behind VeChain consists of over 90+ employees, most of them being developers. Chief Technology Officer, Gu Jianliang, has over 18 years of experience in areas such as mobile devices and the IoT field, and has created over a 100 patents in several technological fields. Kevin Feng serves as the Chief Operations Officer of the VeChain Foundation. Feng has been actively involved in many technology projects in his 12 years working for VeChain’s partner, PWC, as a consultant and assurance advisor.