Blockchain-based Certificate Verification And Validation

• Author(s):

  Dr.N.Sundararajulu | M.Ravi Bhaskar | S.Venkata siva | P.Koteswara Rao

• Keywords:

  Blockchain, Certificate Verification, Digital Credentials, Smart Contracts, SHA-256 Hashing, Decentralized Ledger, Ethereum, IPFS, Fraud Prevention, Educational Technology, Access Control.

• Abstract:

  Blockchain Technology Offers A Robust And Innovative Solution For Certificate Verification And Validation, Addressing Prevalent Issues Such As Fraud, Forgery, And Data Manipulation. By Leveraging The Decentralized, Immutable, And Transparent Nature Of Blockchain, Educational Institutions, Certification Bodies, And Employers Can Ensure The Authenticity And Integrity Of Digital Certificates. Each Certificate Is Recorded On The Blockchain As A Unique Digital Asset, Secured Through Cryptographic Hashing. This Process Guarantees That Any Attempt To Alter Or Counterfeit The Certificate Can Be Easily Detected, As Even The Slightest Modification Would Change The Hash Value. Furthermore, Blockchain's Decentralized Ledger Allows Multiple Stakeholders To Access And Verify Certificates In Real-time Without Relying On A Central Authority, Enhancing Trust And Reducing Administrative Overhead. The Use Of Smart Contracts Automates The Validation Process, Ensuring That Only Verified And Authorized Certificates Are Added To The Blockchain. As A Result, Blockchain-based Certificate Verification And Validation Provide A Secure, Efficient, And Transparent Framework That Significantly Enhances The Reliability Of Credentialing Systems. Counterfeit Academic And Professional Certificates Continue To Erode Institutional Trust And Compromise Merit-based Selection Worldwide. This Paper Proposes A Decentralized Digital Credentialing Framework Anchored In Blockchain Immutability, SHA-256 Cryptographic Hashing, And Programmable Ethereum Smart Contracts. Upon Certificate Issuance, A Canonical JSON Credential Object Is Hashed And Its Digest Is Permanently Inscribed On A Distributed Ledger Through An Auditable Smart Contract Transaction, Rendering Retroactive Modification Computationally Infeasible. Verification By Any Relying Party—employer, Licensing Authority, Or Academic Registrar—requires Only A Client-side Hash Recomputation And A Read-only Blockchain Query; Any Discrepancy Between The Submitted And Stored Digest Triggers Immediate Rejection Without Institutional Intermediation. Role-differentiated Access Control Governs Issuance, Retrieval, And Revocation Across All Stakeholder Classes. The Proposed Architecture Furnishes A Secure, Transparent, And Globally Accessible Credentialing Infrastructure Applicable To Universities, Certification Bodies, And Cross-border Employers.

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Other Details

• Paper id:

  IJSARTV12I5105390

• Published in:

  Volume: 12 Issue: 5 May 2026

• Publication Date:

  2026-05-18

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