Ethereum is a smart contract platform that enables developers to build tokens and decentralized applications (dapps). ETH is the native currency for the Ethereum platform and also works as the transaction fees to miners on the Ethereum network. Ethereum is the pioneer for blockchain based smart contracts. Smart contract is essentially a computer code that runs exactly as programmed without any possibility of downtime, censorship, fraud or third-party interference. It can facilitate the exchange of money, content, property, shares, or anything of value. When running on the blockchain a smart contract becomes like a self-operating computer program that automatically executes when specific conditions are met. Ethereum allows programmers to run complete-turing smart contracts that is capable of any customizations. Rather than giving a set of limited operations, Ethereum allows developers to have complete control over customization of their smart contract, giving developers the power to build unique and innovative applications. Ethereum being the first blockchain based smart contract platform, they have gained much popularity, resulting in new competitors fighting for market share. The competitors includes: Ethereum Classic which is the oldchain of Ethereum, Qtum, EOS, Neo, Icon, Tron and Cardano. Ethereum wallets are fairly simple to set up with multiple popular choices such as myetherwallet, metamask, and Trezor. Read here for more guide on using ethereum wallet: How to Use an Ethereum Wallet
Curecoin is a new SHA-256 based cryptocurrency with a big vision, that is - Curing Cancer, Alzheimer's, Huntington's, preventing viruses, and designing next-level of pharmaceuticals. Curecoin can be earned with both GPU and CPU. Folders use high-end GPUs and CPUs to fold proteins, earning a proportional amount of coins set-aside for their contributions. SHA-256 ASIC Miners could still get along by mining Curecoin as usual which will further secure the blockchain and the network. Whether you are heavily-invested in ASIC equipment or still have GPUs and CPUs, you can participate. Due to the nature of folding (diverse, constantly changing, not easily predictable), GPUs and CPUs will both always be relevant, so an investment in consumer hardware isn't wasted. Curecoins go to three main areas: Folders, Miners, and Developers. The folders get 76% of the total coins (80% of the coins distributed per day). SHA256 miners get 19% of the total coins (20% of the coins distributed per day). 2% of the total funds are distributed to people who donated to project development. The other 3% is dedicated to Curecoin developers, and will be used for paying for development costs (such as hiring professional programmers, paying for infrastructure, etc.), and for giving back to the community (folding hardware giveaways, faucets, covering 0% mining pools, etc.).