DEVELOPMENT OF A CONCEPT OF AN OPTIMIZED METHOD OF USING BLOCKCHAIN WITH ANONYMITY PRESERVATION FOR USE IN THE ATTENDANCE REGISTER
DOI:
https://doi.org/10.28925/2663-4023.2026.32.1202Keywords:
blockchain; privacy; anonymity; IPFS; smart contracts; attendance; hashing; decentralized identifier.Abstract
This article considers the problem of ensuring the protection of users' private data in attendance accounting systems that use blockchain and a method for optimizing network load and resources usage. Most studies aimed at integrating blockchain into accounting systems do not investigate problems related to user privacy and resource use but are more focused on the problems of using smart contracts to ensure the operation of these systems. In this study, attention is paid specifically to solving optimization and privacy problems. For this purpose, a method for creating decentralized accounts was proposed that allows confirming the person who owns them and hiding the personal data of the decentralized identifier administrator by default. A method for attendance accounting is proposed that is focused on optimizing the use of network resources by distinguishing data processing methods - the use of on-chain and off-chain processing. The essence of this method is to store data in IPFS, and evidence of their authenticity in the blockchain, which allows to ensure simultaneously availability and immutability of the data due by the characteristics of IPFS and blockchain. The load assessment modeling conducted confirmed the effectiveness of the proposed method for reducing the load on the network. Also, the use of decentralized identifiers using the proposed anonymous identifier, which is created from a set of personal data and a cryptographic salt, as part of the decentralized identifier allows the preservation of user privacy, which allows us to consider the proposed method as a theoretical basis for further research and development of attendance accounting systems based on the combining the blockchain and IPFS.
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