Blockchain Credential Verification with AI Fraud Check

A certificate verifier that combines a blockchain registry with an AI fraud check. Institutions issue certificates whose QR code carries the printed fields signed with the institution's Ed25519 key; the encrypted file is stored on IPFS and only its hashes, CID and status go on the ledger. Any copy - the original file, a scan, a chat-app copy - is checked against the ledger and the signature first, and by a forensic LightGBM model where cryptography cannot decide. On synthetic certificates it accepts 88.8 % of genuine copies and lets only 0.9 % of forgeries through, all on a laptop CPU.

Category: Blockchain / Document Forensics / Computer Vision / Applied Cryptography / Cyber Security

CSE Project 31 from ProTechSC Academy, with graphical abstract, video demonstration and project guidance.