Digital evidence plays an important role in cyber crime investigation, as it is used to link persons with criminal activities. Thus it is of extreme importance to guarantee integrity, authenticity, and auditability of digital evidence as it moves along different levels of hierarchy in chain of custody during cyber crime investigation. Blockchain technology’s capability of enabling comprehensive view of transactions (events/actions) back to origination provides enormous promise for the forensic community. In this research we proposed to use a blockchain that can be leveraged for forensic applications in particular bringing integrity and tamper resistance to digital forensics chain of custody.