Arweave (AR) Review

Released in 2014, Groestlcoin (GRS) cryptocurrency enables private and fast transactions. It is the first coin that activated Lightning Network and SegWit. You can buy GRS for both crypto and fiat currencies (USD, EUR, GBP, KRW). This cryptocurrency is listed on multiple exchanges.

Sebastian Schepis, the Syscoin founder, built Syscoin 1.0 as a blockchain-based marketplace for buying and selling goods. In its third edition in 2018 it became a fully developed blockchain platform. In 2019, Syscoin 4.0 enables any ERC20 to integrate with its Bitcoin-compliant system to accomplish ultra speed and security.

Founded by former Qualcomm, Intel, and Dropbox engineers in late-2017, Solana is a single-chain, delegated-Proof-of-Stake protocol whose focus is on delivering scalability without sacrificing decentralization or security.