BlockchainFor PixelVault
PixelVault — NFT Marketplace
Duration
2.5 Months
Team Size
4 Engineers
The Challenge
Creators on OpenSea were losing 5–10% to gas fees on low-value mints, and royalties were routinely bypassed by aggregators — undermining creator economics.
The Solution
We wrote ERC-721A contracts with lazy-mint support (gas savings of up to 60%), implemented EIP-2981 royalties enforced on-chain, and a Python AI service that scores NFT trait rarity on upload.
Tech Stack
SolidityERC-721AHardhatNext.js 14ethers.jsIPFSPython
The Impact
0Gas savings via ERC-721A lazy mint
0Royalty enforcement rate
0Volume traded in first 30 days