Credify v2 — Permissioned Private Blockchain for Credential Verification

🚀 Credify v2

Credify v2 is an academic-grade permissioned private blockchain system for secure credential issuance and verification.

This release represents the final, stable version of the system, implementing deterministic consensus, validator-based participation, and finalized tamper-evident blocks.

🔑 Key Highlights

• Permissioned validator network
• Deterministic consensus (round-robin leader selection)
• Block finality and immutability
• Multi-node propagation
• QR-based credential verification
• ZKP-inspired selective disclosure

🔄 System Evolution

This version is the result of a structured engineering progression:

• Prototype (BlockCred)
  IPFS-based storage, hashing, and dashboard-driven verification
  https://github.com/uday-works/blockcred-system
  https://blockcred-frontend.onrender.com/

• Credify v2 (Current System)
  Transition to a permissioned blockchain with consensus, validation, and finality

• Verification Client (Credify Verify)
  Independent scanner for credential validation
  https://github.com/udaycodespace/credify-verify
  https://udaycodespace.github.io/credify-verify/

🔐 Access Model

• Admin / Issuer: Creates students and issues credentials
• Student: Receives and shares credentials (no self-registration)
• Verifier: Public verification (no login required)

Authentication is handled via a secure OTP-based flow, removing reliance on static credentials.

🧠 Development Approach

Developed using an iterative SDLC (Agile-inspired) approach:

• Phase 1: Foundation (MVP + prototype validation)
• Phase 2: Distributed architecture (multi-node + consensus)
• Phase 3: Feature completeness (verification, disclosure, workflows)
• Phase 4: Stabilization & deployment (Docker, CI/CD, testing)

Team:

• Uday — Lead & Architect
• Shashi — Contributor
• Varshith — Contributor

⚠️ Notes

This system is designed for:

• correctness
• explainability
• controlled distributed validation

It prioritizes clarity over full protocol complexity, making it suitable for academic demonstration and real-world conceptual validation.

🏁 Status

• Stable
• Tested
• Viva-ready
• Deployment-ready

Credify v2 marks the completion of a structured, end-to-end credential verification system built with a focus on security, architecture, and clarity.

What's Changed

• feat: Evolution: Transition to Private (PVT) Blockchain Architecture & Hardened Multi-Portal Security by @udaycodespace in #8

Full Changelog: https://github.com/udaycodespace/credify/commits/v2