cryptocurrency What’s the Difference Between a Cryptocurrency and a Token? A token is an application that lives on your iPhone. A cryptocurrency is the electricity that powers it, and a blockchain encompasses the entire iPhone, from the silicon processor inside to the designers that gave it beauty.
ethereum Building your first Ethereum Oracle Blockchains are inherently self-sufficient. The entire deterministic model of a traditional blockchain is hinged on the fact that during transaction execution (which updates the “state” of the system) blockchains cannot perform any logic which is derived from sources external to the blockchain.