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Blockchain
Blockchain Certificate Verification
Tamper-proof academic credentials on an EVM chain
- Solidity
- Hardhat
- Next.js
- ethers.js
- +2
₹4,299₹7,499
4.7/132 reviews
Blockchain · Capstone
Self-Sovereign Digital Identity
DIDs and verifiable credentials with selective disclosure
5-6 weeks build
Overview
Each user controls a decentralised identifier anchored on-chain, and issuers such as a college sign W3C-style verifiable credentials that live in the user's wallet, not on the chain. When a verifier asks for proof, the user discloses only the claims needed, such as "enrolled" without the date of birth, using salted-hash disclosure. A revocation registry lets issuers withdraw credentials. Sepolia or local Hardhat.
What makes it stand up
- 01DID registry anchored on-chain, controlled by the holder
- 02Issuer-signed credentials kept in the holder's wallet
- 03Selective disclosure with salted claim hashes
- 04On-chain revocation registry for issuers
- 05Issuer, holder and verifier apps in one demo
Module breakdown
- 01
DID registry
Maps each DID to its controller and public keys.
- 02
Issuer
Signs credentials for approved holders.
- 03
Wallet
Stores credentials and builds disclosure proofs.
- 04
Verifier
Checks signatures, disclosed claims and revocation.
- 05
Revocation
Issuer-owned registry of withdrawn credentials.
After this, you will be able to
- Explain the issuer-holder-verifier triangle
- Defend keeping credentials off-chain for privacy
- Demo proving one claim without revealing the rest
Technology stack
- Solidity
- Hardhat
- ethers.js
- React
- Node.js
- IPFS
- Level
- Capstone
- Domain
- Blockchain
- Build time
- 5-6 weeks
- Difficulty
You receive
- Complete, commented source code
- 60-90 page project report (IEEE format)
- Editable presentation deck
- Architecture, ER and UML diagrams
- Local setup and deployment guide
- Sample dataset or seed data
- Viva question bank with answers
- One 45-minute walkthrough call
- 30 days of doubt-clearing support