07 / 07 · Cloud Nine Solutions · 2023 — 2024

Verifying certificates with OCR and a public ledger

WorkCV/AI · Full-stackShippedPython · EasyOCR · Django · MySQL · Hedera Hashgraph

01Problem

[Problem]

[Design and tradeoffs]

[Image — certificate OCR]

Fig. 1 — [Caption]

[Screenshot — Django web app]

Fig. 2 — [Caption]

[Chart or table]

Fig. 3 — [Caption]

As an intern, researched OCR and blockchain options, prototyped both, and wrote the technical proposal approved by Cloud Nine leadership and the client, leading to a full-time offer to build it.
Delivered the system to a food-certification client on a 3-person team, combining OCR extraction with blockchain-backed tamper detection.
Developed the OCR pipeline extracting structured data from certificates, fine-tuning EasyOCR for the client's layouts.
Built the tamper-detection module, anchoring certificate hashes on Hedera to flag altered or revoked documents.
Implemented the Django APIs and MySQL database behind the system's extraction and verification workflows.

[What I learned]