Credentials
Proof of work, on-chain.
Each credential below is a soulbound NFT minted to my wallet on Solana devnet — MPL Core with a PermanentFreezeDelegate plugin, so the credential is issued, not claimed, and can never leave the wallet. Verify any of them directly on Solscan.
- solscanMINTEDSolana· 2024-12
School of Solana — Season 8
Ackee Blockchain
Production-grade Solana programs with Rust + Anchor. PDAs, CPIs, token programs, security patterns.
mint · 3JnhfWQB…qDee7vqv
- solscanMINTEDSolana· 2025-Q2
Solana Frontier — Colosseum
Colosseum
Built Structa.finance: on-chain fundraising for Brazilian real estate, paid in USDC.
mint · CqNveXmv…o9sh9e1y
- solscanMINTEDStellar· 2025-08
Stellar Build Hackathon
Stellar Development Foundation
Built KaleFi — collateralized lending on Stellar. Soroban contracts in Rust.
mint · Fpj1KeZJ…BAt4qAdd
- solscanMINTEDSolana· 2024
NearX — Rust & WebAssembly
NearX Academy
Hands-on Rust fundamentals for blockchain tooling and WebAssembly targets. Applied to Soroban and Solana.
mint · 5HxwmTPx…PV4wFrdK
- solscanMINTEDEVM· 2024
NearX — Solidity 101
NearX Academy
Solidity and EVM development. Security patterns, OpenZeppelin standards, Foundry tooling.
mint · 3n16Avjh…d4fEVn2h
- solscanMINTEDEVM· 2024
DeFiverso
DeFiverso
DeFi protocol mechanics, whitepaper analysis, governance forums, on-chain data interpretation.
mint · CUsh5mBx…WBwwkSQ5
- issuerPENDINGAcademic· 2026-02
BSc Computer Engineering
UFRPE
Bachelor's in Computer Engineering at Universidade Federal Rural de Pernambuco — systems, algorithms, computer architecture, applied math.
All credentials are minted from a single wallet using MPL Core. The mint pipeline lives at scripts/mint-credentials.ts and is idempotent — running it again only mints new entries. Devnet for now; mainnet migration once a credible verifier UI is worth writing.