Smart Grids and Industry 4.0 (I4.0) are neither a dream nor a near-future thing anymore, rather it is happening now. The integration of more and more embedded systems and IoT devices is pushing smart grids and I4.0 forward at a breakneck speed. To cope up with this, the modification of age-old SCADA (Supervisory Control and Data Acquisition) systems in terms of decentralization, near-real-time operation, security, and privacy is necessary. In this context, blockchain technology has the potential of providing not only these essential features of the data acquisition process of future SCADA systems but also many other useful add-ons. On the other side, it is evident that various type of security breach tends to take place more during any economic turmoil. These can cause even more serious devastation to the global economy and human life. Thus, it is necessary to make our industries robust, automated, and resilient with secured and immutable data acquiring systems. This paper deals with the implementation scopes of blockchain in the data acquisition part of SCADA systems in the area of the smart grid and I4.0. There are several consensus mechanisms to support blockchain integration in the field of cryptocurrencies, vehicular networks, healthcare systems, e-commerce, etc. But little attention has been paid to developing efficient and easy-to-implement consensus mechanisms in the field of blockchain-enabled SCADA systems. From this perspective, a novel consensus mechanism, which we call PoRCH (Proof of Random Count in Hashes), with a customized mining node selection scheme has been proposed in this paper. Also, a small-scale prototype of a blockchain-enabled data acquisition system has been developed. The performance evaluation of the implemented prototype shows the benefits of blockchain technology.

翻译：智能网格和工业4.0(I4.0)(I4.0)既不是一个梦想,也不是一个近乎未来的事情,而是现在正在发生。越来越多的嵌入系统和IoT装置的整合正在推动智能网格和I4.0的快速推进。为了应对这种情况,必须修改古老的SCADA(监管和数据采集)系统,包括权力下放、近实时操作、安全和隐私。在这方面,连锁技术不仅有可能提供未来SCAD系统数据采集过程的这些基本特点,而且有可能提供许多其他有用的附加装置。另一方面,在任何经济动荡期间,各种违反安全的情况往往发生得更多。这可能会对全球经济和人类生活造成甚至更严重的破坏。因此,有必要使我们的产业更加强大、自动化和具有弹性的获得数据系统。本文涉及SSCADA系统在智能网和I4.0领域的数据获取过程中的连锁部分实施范围(我们从这个小的视野网络支持了这个安全链路路的系统,在快速的系统上, 已经形成了一个容易的系统。