A Probative Value for Authentication Use Case Blockchain.

Summary The Fintech industry has facilitated the development of companies using blockchain technology. The use of this technology inside banking system and industry opens the route to several questions regarding the business activity, legal environment and insurance devices. In this paper, considering the creation of small companies interested to develop their business with a public blockchain, we analyse from different aspects why a company (in banking or insurance system, and industry) decides that a blockchain protocal is more legitimate than another one for the business it wants to develop looking at the legal (in case of dispute) points of view. We associate to each blockchain a probative value which permits to assure in case of dispute that a transaction has been really done. We illustrate our proposal using thirteen blockchains providing in that case a ranking between these blockchains for their use in business environment. We associate to this probative value some main characteristics of any blockchain as market capitalization and log returns volatilities that the investors need to take also into account with the new probative value for their managerial strategy.