This paper is regarding Block chain, IOT and the block chain with IOT. Internet of Things plays a major role in the present technological world, but to the point of security and privacy IOT lacks in it. To overcome this Block chain concept arrives. The combination of IOT devices and Blockchain introduces the purest source of IOT data. Blockchain enables IOT’s unique identity, accuracy and consistency of data. Blockchain and IOT both tend to be the world changing technology.
