University of Peloponnese Two of the most significant arising technological advancements currently underway that are showing an ever‐increasing spread both in industrial and academic areas, are the blockchains and the advent of quantum technologies. Since, blockchains have  dramatically  advanced  in the recent years and have found numerous applications with the expectation to significantly enhance their security, the conundrum related to the quantum threat and the implementation of post-quantum signatures in a blockchain platform is a trending topic in nowadays scientific…