Nebulas is a next generation public blockchain, aiming for a continuously improving ecosystem. Based on its blockchain valuation mechanism, Nebulas proposes future-oriented incentive and consensus systems, and the ability to self-evolve without forking. Many in the crypto community are referring to Nebulas as “the new Google”. While the two are similar in a sense, they hold different use cases. Google is intended for day to day internet information searches, while Nebulas focuses on searches among decentralized applications (DApps), smart contracts, and user’s blockchain assets. Nebulas is being built on a decentralized search framework with open-source algorithms, verifiable computing, and distributed data stores.” Nebulas has three core features of its tech such as Nebulas Rank (NR), it is an Open source, core ranking algorithm based on “liquidity, propagation of users’ assets, and the interactivity between users.” and Nebulas Force (NF): “Nebulas Force (NF) provides the Nebulas blockchain & its distributed applications built on top, the capability to self-evolve”. Nebulas’s official website shows an international team of 14 core members, including Hitters Xu, founder and CEO of Nebulas (who also happens to be the founder of AntShares, now known as NEO). Xu is considered a pioneer in the blockchain industry, founding BitsClub (the very first Blockchain/Bitcoin community in China) in 2013 as well as popular ICO platform ICO 365. He also founded the crypto funds firm, FBG capital. On top of that, he directed an Alibaba financial arm (Ant Financial’s Blockchain Platform) and aided Google’s Search & Anti-Fraud team.
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.