Abstract: Blockchain, chain of blocks in French, is a technology that makes it possible to keep track of a set of transactions, in a decentralized, secure and transparent way, in the form of a chain of blocks. Developed from 2008, it is, first and foremost, a technology for storing and transmitting information. This technology offers high standards of transparency and security because it works without a central control body. More concretely, the blockchain allows its networked users to share data without an intermediary. Everyone praises the efficiency of the blockchain which is indeed an exceptional transactional system, and more and more used as a cryptographic concept for the security of several types of transactions today, except that these same people extolling the said efficiency, do not do not know exactly the principles underlying this effectiveness, something that we have proposed to clarify in this article, in order to remove ignorance in this matter, thus affirming its relevance. Keywords: Authentication, Bitcoin, Blockchain, One Way Functions. Title: Principles underlying the authenticity of Blockchain transactions Author: Professor KABEYA TSHISEBA Cedric International Journal of Novel Research in Computer Science and Software Engineering ISSN 2394-7314 Vol. 10, Issue 2, May 2023 - August 2023 Page No: 6-13 Novelty Journals Website: www.noveltyjournals.com Published Date: 02-May-2023 DOI: https://doi.org/10.5281/zenodo.7886085 Paper Download Link (Source) https://www.noveltyjournals.com/upload/paper/Principles%20underlying-02052023-4.pdf

International Journal of Novel Research in Computer Science and Software Engineering, ISSN 2394-7314, Novelty Journals, Website: www.noveltyjournals.com