The main purpose of the paper is to discuss the nature of enterprise?architecture of the blockchain platform (EAoBP). Authors highlighted as well how?main technology challenges for enterprises are addressed through the proposed?solution. The paper consists of the introduction and 3 chapters. Chapter 2nd?presents related works about blockchain technology and defines platform concept?as such. Architecture layers which are required to build enterprise blockchain?platforms are described in 3th chapter. 4th chapter constitutes implementation?aspects of the EAoBP. Permissioned blockchain systems leverage crossorganizational?collaboration model, what constitutes cooperation within the?network without 3rd party authorities. Open source character of implementation?technology and clear guidance of the scope of each layer clarified in the article?should help with business applicability of the concept.