DefinePK

Abstract

In today's advanced digital world, it is very important to construct a professional reputation on which people can trust. This paper will recommend a badge identification system which is based on Blockchain that gives clear-cut, unbreakable proof of credentials and professional achievements. In this proposed approach, it will incorporate Smart Contracts and Decentralized Identifiers (DIDs) to provide trust, scalability, and privacy to the people. A Blockchain with limited access will be established so that companies can issue and give authentic digital badges which is suitable for reputation verification, and use some security analysis to evaluate the system. The results show that badge systems that are using blockchain are more safe and scalable alternative to traditional ways of checking credentials.
This study represents a blockchain-based system for badge-driven identity and reputation management which is used for Verifiable Credentials (VCs), Smart Contracts and decentralized identifiers (DIDs) to get rid of the problems which are faced in traditional way. In this suggested system, recognized institutions may provide professionals credentials that are temper-proof and can be verified by cryptography. These credentials may be used as proof of affiliation. These badges are linked with the self-governing identities, so that users can be sure about their work.
A reputation score model will be constructed by putting together endorsement graphs, badge information, and issuer credibility that will see how trustworthy a professional is working. The system uses Ethereum smart contracts, open-source DID protocols to create the identification without central authority, and IPFS which will store badges off-chain.
The research will contribute to the domains of decentralized identity management, blockchain applications in a trusted system, and algorithmic reputation modeling in both theory and practice. The suggested system will make the possibility to check and transfer professional credentials, that will open up new possibilities for education, job verification, freelancing platforms, and decentralized learning ecosystems. At the end, it gets closer to the aim of a digital reputation system that users can manage and trust, which is important for the new Web3 and knowledge economy.