Obyte (formerly Byteball) is a decentralized system that allows tamper proof storage of arbitrary data (currencies, property titles, debt, shares, etc). There isn't a blockchain, as transactions are their own blocks and they need not connect into a single chain (DAG). In Byteball, the currency is named Bytes (GBYTE). Bytes are used to pay for adding data into the Byteball database: 1,000 GBYTE represent 1Kb of data.