From academic diplomas to training certifications, validating achievements is essential to personal and professional growth. However, traditional methods of issuing and verifying certificates still face significant challenges:
- Risk of forgery and tampering
- Slow and outdated authentication processes
- Lack of interoperability between institutions and countries
- High operational costs, whether issuing physical documents or digitizing them
Now imagine if these credentials could be issued immutably, verified instantly, kept fully private, made compliant with data protection laws like GDPR and LGPD, and accessed from anywhere in the world — all at a fraction of the cost.
The new Certificate Issuance Smart Contract by Klever, now live on the Klever Testnet, makes that a reality. Developed in partnership with ABCripto — one of Brazil’s leading crypto associations — this tool opens a new era of security, agility, and trust in document authentication.
How the Certificate Issuance Smart Contract Works
The Certificate Issuance SC is a decentralized application (dApp) deployed on the Klever Blockchain, allowing institutions and individuals to issue verifiable certificates directly on-chain.
Key Features of the Smart Contract
- Unique Certificate IDs: Each certificate is assigned a non-repeatable, tamper-proof identifier.
- On-Chain Metadata: Information such as recipient name, title, issuing entity, and date is stored and verifiable on-chain — but not publicly accessible. This is protected using Zero-Knowledge Proofs, allowing only the certificate owner to decide which data to share and with whom.
- Public Verification: Anyone can verify the authenticity of a certificate via the Klever Blockchain Explorer.
- Issuer-Controlled: Only authorized accounts can issue or revoke certificates.
Why Blockchain-Based Certificates Are a Game-Changer
The Klever Smart Contract sets a new standard for issuing and validating credentials. With blockchain, certificates become:
Instantly Verifiable
Employers, institutions, and organizations can verify credentials without contacting the issuing entity. Blockchain makes it independent and immediate.
Globally Accessible
Certificates issued on the Klever Blockchain can be validated from anywhere in the world, eliminating bureaucracy and national borders.
Immutable by Default
Certificate data is stored securely and permanently. It cannot be forged, altered, or deleted.
Privacy and Compliance with Data Protection Laws
All credentials issued through the smart contract are designed to fully comply with international privacy standards, including GDPR and Brazil’s LGPD.
Although verification is blockchain-based, personal data is not publicly exposed. Thanks to zero-knowledge proof mechanisms, only the issuer and certificate holder control what is shared and with whom.
This ensures strong privacy protection while maintaining full auditability.
Extremely Low Issuance Costs
Issuing certificates via the Klever Blockchain is extremely cost-effective. Based on public data from Brazil’s Ministry of Education and a conservative network fee estimate, Klever’s solution delivers over 99% cost savings compared to traditional digital certification models.
Certificate Issuance Cost Comparison
| Type of Issuance | Average Cost per Diploma |
| Physical diploma | $78.05 |
| MEC Digital diploma | $17.03 |
| Klever Blockchain solution | $0.01 |
On Klever Blockchain, institutions can further lock in issuance costs using the KDA Fee Pool mechanism.
By allocating KLV tokens proportionally into the pool, the issuer can “freeze” the operation cost at current KLV prices. This creates long-term budget predictability and protects against market volatility.
Best of all, this is done using existing blockchain infrastructure — with no need for large new investments beyond the essentials.
Real-World Applications
- Education: Universities can issue diplomas that employers verify directly on-chain.
- Online Courses: EdTech platforms can offer instant, blockchain-verified certificates.
- Events and Awards: Organizers can issue permanent, auditable recognition.
- Professional Training: Companies can certify employee skills and compliance with full transparency.
How to Test It
Developers and institutions can already interact with the smart contract on the Klever Testnet. The team welcomes testing, feedback, and integration ideas.
Try It Now:
- Access the Klever Testnet
- Execute the certificate-issuance-sc using Klever IDE or API
- Issue a test certificate and view it via the blockchain explorer
- Share feedback in the Klever Forum
Beyond the Testnet: Bringing This Solution to Your Platform
This smart contract is only the beginning. It reflects Klever’s long-term vision to build public blockchain infrastructure for real, accessible use cases.
In the near future, this solution could integrate with:
- Web3 academic platforms
- DAO contributor recognition systems
- Proof-of-attendance (POAP) protocols
- Enterprise credentialing frameworks
Developed in Partnership with ABCripto
This smart contract is the result of a strategic partnership between Klever and ABCripto, one of Brazil’s most influential crypto associations.
Since Klever joined ABCripto in 2024, both organizations have shared the mission of advancing transparency, security, and innovation in the digital asset space.
This smart contract is a tangible example of that shared mission in action.
What ABCripto Gains:
- A secure and immutable way to issue certificates to clients and partners
- A blockchain-based solution built on industry best practices
- Full traceability and transparency without sacrificing privacy or control
- Compliance with privacy laws like GDPR and LGPD
- Proven cost reduction for certificate issuance
Start Building With Klever Today
The Klever Certificate Issuance Smart Contract is more than a tech solution — it’s an invitation to scale trust.
Whether you work in education, corporate training, event management, or digital identity, you can now issue and verify credentials with speed, privacy, and security — all powered by Klever Blockchain.
Want to integrate this solution into your platform?
- Test it now on the Klever Testnet
- Explore developer tools at docs.klever.org
- Join the community on the Klever Forum
Let’s build a future where credentials are credible by default.
Klever Blockchain – The Blockchain of the People
