Aeternity is a new platform for decentralized apps (dapps) launched in testnet in 2017. It also held a successful token offering in 2017 for its Aeon (AE) token.
The project focuses on increasing the scalability of smart contracts and dapps. It accomplishes scaling by moving smart contracts off-chain. Instead of running on the blockchain, smart contracts on Aeternity run in private state channels between the parties involved in the contracts.
Aeternity includes several other features that set it apart from other smart contract and dapps platforms. Notably, it includes a decentralized oracle machine that brings in data from outside sources for use in smart contracts. It also uses prediction markets for various voting and verification purposes within the platform.
Founded by a long-time crypto-enthusiast and early colleague of Vitalik Buterin, Yanislav Malahov, Aeternity has quickly risen to the top 40 projects in the world by market cap.