We’re excited to announce the release of yet another powerful smart contract in the Klever Blockchain testnet:
Certificate Issuance Smart Contract
This contract is a key demonstration of how Klever Blockchain solves real enterprise problems with practical blockchain applications — moving beyond just cryptocurrencies and into secure, decentralized solutions for the professional and academic worlds.
What Is It?
This smart contract enables institutions to issue, revoke, and audit digital certificates on-chain — while giving recipients self-verifiable, privacy-preserving credentials.
Key Features:
- Issuance
Emission of certificates with metadata hashed and permanently stored on the blockchain. - Verification
Check certificate authenticity using its unique on-chain ID. - Revocation
Issuers can revoke certificates and mark them as invalid on-chain. - Audit Trail
Full on-chain logs of every issuance/revocation with timestamps. - Zero-Knowledge Proofs
Verify a certificate’s authenticity without exposing any sensitive content. - Selective Disclosure
Allow users to verify only specific attributes (e.g., degree type or graduation year) using ZK-proofs.
Try It Now
You can interact with the contract directly via our testnet demo:
Live Demo Front-End
Contract address on Testnet:
klv1qqqqqqqqqqqqqpgqjezst3a97mctv4p605svp6jcq74v0c203jysjc7af5
Build With It
Want to create your own certification platform using this tool? We’ve got you covered.
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NPM Package:
@klever/certificate-issuer -
Smart Contract Source Code:
GitHub Repository -
Deploy Guide (KleverChain IDE Extension for VS Code):
Installation & Usage Guide
Testnet Reminders
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Smart contract execution fees are paid by the contract owner.
Make sure your wallet (contract owner) has sufficient Testnet KLV. -
Need Test KLV?
Use the Faucet via KleverScan Testnet:
→ Click “Request Test KLV” menu (requires Klever Extension) -
Need help connecting the Klever Extension?
How to Connect the Klever Extension to a Dapp
Why This Matters
This smart contract isn’t just a demo — it’s a real solution to real-world challenges.
By leveraging Klever Blockchain’s technology, we’re helping institutions modernize how they issue and manage certifications with trust, transparency, and privacy.
Klever is powering the next wave of enterprise-grade Web3 adoption.
Let’s build a more verifiable world — together. 
Questions, feedback or suggestions? Share them below and join the discussion!
