ENDO is a Blockchain, a protocol and various data verification services. The Ecosystem of the ENDO protocol produces a decentralized environment for verified information. Data that people and robots can trust: from another location, immediately, and safely. Using the ENDO protocol, it is possible to create personal and public Blockchain, configure amounts of access to information, the conditions for data exchange between different organizations, and depersonalize and shield information. On the foundation of the ENDO protocol, applications have been developed that let the transfer of paper documents with ink signatures to digital ones; an individual may get a digital certificate of their identity; brand items to produce a digital passport of authenticity.