Application / Database Layer Decentralized Storage Layer Blockchain Consensus Layer FETCH_DATA() RESOLVE_CID VERIFY_HASH VALIDATED_DATA CERT_ID UI TABLE [DASHBOARD] MONGODB NAME : JANE DOE ROLE : STUDENT CERTID: 0X8F3A IPFS NETWORK FILE : CERT.PDF CID : QM...Y1 CERTID: 0X8F3A SEPOLIA BLOCKCHAIN HASH : 0XAA...B2 EXPIRY: 2025-12-31 CERTID: 0X8F3A