PROVER is a blockсhain technology for authenticity confirmation of events and facts through timestamp security and Blockchain for taken video content. If the video is confirmed as real - the captured fact is proved as true. This fact should be taken into account as the main and trusted source of verification. PROVER is a technology combining timestamp authentication and Blockchain, an SDK for third-party services and solutions, a protection system of frauds and fake content and establishing the trusted environment in legal, financial and other various industries where is critical to know the truth behind originality of video content.