DeCAT: Decentralized Certificate Authority - A Blockchain based Service Aligned to India Stack

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Dhananjay Pai, Hrishikesh Patil, Yash Sahane, Varad Deshmukh, Nupur Giri

Abstract

The prevailing challenges within the realm of issuing and authenticating certificates for achievements, skills, or commodities, involve issues of duplication, document tampering, malpractice and lack of trustworthiness. This research proposes a solution leveraging blockchain technology to improve the credibility and legitimacy of certificates. The system employs soul-bound tokens (SBTs) to accurately represent individuals' skills and qualifications, ensuring certificate authenticity. Credibility is reinforced by endorsements from verified certificate holders, which can be prominently displayed in a portfolio. The system facilitates verification through QR codes embedded in SBT certificates. The system has a Reputation Score mechanism, dynamically assessing individuals' proficiency based on various parameters, thereby providing a tangible metric for evaluating candidates' expertise. The system uses LLM for generating casual granular statistical insights of the certificates in the particular wallet address. This research underscores the system's potential to revolutionize credential validation in the market by offering a transparent, efficient, and trustworthy project.

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