Aeternity Blockchain: Lightning Smart Contracts. Turing-Complete State-Channels. Decentralized Oracles. æternity is a next-level, brand new blockchain technology in the making, with many features that tackle current issues of blockchain systems in an elegant way. AE are the access tokens to the æternity blockchain and act as a unit of account for the resources spent on æternity. AE are the energy (or “crypto-fuel”) used to power any application implemented on the platform. Every action (and even inaction) on the æternity platform costs something, even if only fractions of cents.