SkillCert
SkillCert transforms your accomplishments into permanent, tamper-proof digital assets on the Solana blockchain
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About
The problem it solves Most online certificates are unverified, isolated in PDFs, and easy to forge. SkillCert turns your credentials into publicly verifiable, immutable records — giving learners, educators, and employers a trust layer for digital proof. Students & Professionals: Easily upload, verify, and share academic and skill-based certificates with employers, institutions, or clients — all tied to their wallet identity. Recruiters & Employers: Instantly verify the authenticity of shared certificates through a tamper-proof, blockchain-based public viewer. Institutions & Course Platforms: Offer blockchain-verified certificates that users can mint and showcase with trust and transparency. Eliminates fraud – Uses blockchain immutability and IPFS to prevent certificate forgery. Easy to share – Generates public links or QR codes to show ownership and verification status. Cost-effective – Uses zk-compression to keep on-chain costs minimal. Trustless verification – Anyone with the link can verify without needing to contact the issuer.
How it's made
Challenges we ran into 1. Wallet Authentication & Identity Linking Initially, I faced issues integrating wallet authentication in a way that was both secure and user-friendly. Civic Auth had limited compatibility, and embedded wallets introduced challenges in managing sessions across devices. Solution: I switched to using Phantom wallet adapters and embedded wallet logic directly with Supabase auth metadata. After fine-tuning wallet state management and address storage, authentication became seamless. 2. Chainlink Functions Integration Chainlink Functions required managing external data requests and signing logic that didn’t work out-of-the-box with my backend setup. Solution: I isolated the Chainlink Functions flow, debugged off-chain responses using mocks, and configured secrets correctly. Eventually, I got the price feed and certificate authenticity check to sync with the user interface. 3.Cross-Service Connectivity Coordinating data between IPFS, Supabase, Chainlink, and Solana often led to CORS issues, syncing delays, and inconsistent states between frontend and backend. Solution: I added global error boundaries, backend retries, and unified env configs across frontend and backend to ensure consistent behavior.