CertiChain
A blockchain-powered NFT certificate platform that enables secure, verifiable, and gasless certificate minting using Universal Gas Framework (UGF).
Submitted Jun 7, 2026
Team size 6
Problem
Traditional certificates are vulnerable to forgery, difficult to verify, and often depend on centralized institutions. Blockchain-based certificates improve trust, but users typically need cryptocurrency (ETH) to pay gas fees, creating onboarding friction. CertiChain solves these problems by: Minting certificates as NFTs on-chain. Providing immutable proof of ownership and authenticity. Enabling instant certificate verification. Eliminating the need for...
How UGF was used
CertiChain integrates Universal Gas Framework (UGF) to enable gasless NFT certificate minting. UGF allows users to execute blockchain transactions without holding ETH in their wallet. Instead of requiring native gas tokens, transaction fees are handled through UGF's payment and sponsorship flow. Implementation highlights: Integrated UGF SDK into the Next.js frontend. Generated transaction quotes through UGF. Used x402 payment flow for transaction...