BlockDegrees - Blockchain-Based Degree Verification System

This repository contains the implementation and knowledge graph model for BlockDegrees, a blockchain-based system for verifying academic degrees.

Repository Structure

The repository is organized as follows:

Neo4j Knowledge Graph

• neo4j/blockdegrees_import.cypher - Cypher queries for creating the knowledge graph
• neo4j/blockdegrees_queries.cypher - Sample queries to explore the knowledge graph
• neo4j/simple_queries.cypher - Simplified queries for basic analysis
• neo4j/neo4j_queries.cypher - Additional queries for the knowledge graph

Scripts

• scripts/generate_data.py - Python script for generating sample data
• scripts/import_to_neo4j.py - Python script for importing data to Neo4j
• scripts/visualize_graph.py - Python script for visualizing the knowledge graph

Data

• data/research_data.json - Sample research data in JSON format
• data/eric.csv - CSV data for educational records
• data/certificates.csv - CSV data for degree certificates

Documentation

• docs/README.md - Original project documentation
• docs/project_context_for_documentation.md - Context for project documentation
• docs/Project.docx - Project document
• docs/project proposal.docx - Project proposal
• docs/Algorithm.txt - Algorithms used in the project
• docs/note.txt - Project notes

Diagrams

• diagrams/class_diagram.svg - Class diagram for the system
• diagrams/flowchart.svg - Flowchart of the system
• diagrams/usecase.svg - Use case diagram
• diagrams/dataflow.svg - Data flow diagram
• diagrams/sequence_issuance.svg - Sequence diagram for certificate issuance
• diagrams/activity diagram.svg - Activity diagram for the system

Web Application

• src/ - Source code for the web application
• public/ - Public assets for the web application
• NFT-Certificate/ - NFT certificate implementation
• package.json - Node.js package configuration

Knowledge Graph Structure

The BlockDegrees knowledge graph models the following entities:

1. Students - Individuals who own degree certificates
2. Institutions - Educational institutions that issue degrees
3. DegreeNFTs - NFT-based degree certificates
4. DegreeTypes - Types of academic degrees (e.g., Bachelor's, Master's, PhD)
5. Fields - Academic fields/disciplines
6. Employers - Organizations that verify degree certificates

These entities are connected through various relationships:

• OWNS - Students own DegreeNFTs
• ISSUED - Institutions issue DegreeNFTs
• CERTIFIES - DegreeNFTs certify specific DegreeTypes
• IN_FIELD - DegreeNFTs are in specific academic Fields
• VERIFIED - Employers verify DegreeNFTs

Getting Started

To work with the knowledge graph:

1. Install Neo4j Desktop or use Neo4j Aura
2. Create a new database
3. Run the import script from neo4j/blockdegrees_import.cypher
4. Explore the data using queries from neo4j/blockdegrees_queries.cypher

To work with the web application:

1. Install Node.js
2. Run npm install to install dependencies
3. Run npm start to start the development server