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
Hydro enables new and existing private systems to seamlessly integrate and leverage the immutable & transparent dynamics of a public blockchain to enhance application and document security, identity management, transactions, and artificial intelligence. Hydro enables developers to seamlessly deploy blockchain in their existing applications, without the need to create expensive infrastructure. If you are building a fintech app in investing, savings, or insurance, Hydrogen is already leveraging the Hydro blockchain technology. Through the Hydrogen API, you can build a blockchain application without being a blockchain developer. The proposed technology is called “Raindrop” - a transaction performed through a smart contract that validates private system access publicly, and can complement existing private authentication methods. The technology is intended to provide additional security for sensitive financial data that is increasingly at risk from hacking and breaches. Initial implementation of the Hydro Raindrop is performed on the Hydrogen API Platform. This modular set of APIs is available to enterprises and developers globally to prototype, build, test, and deploy sophisticated financial technology platforms and products. The Hydro Raindrop will be made available to the world developer community as open source software, to allow developers to integrate the Hydro Raindrop with any REST API.