atak12

Designed and developed smart contracts to migrate the ZIPS NFT collection from a standard ERC721Enumerable implementation to a proxy-based ERC721 architecture. Built a staking-based migration mechanism where legacy NFTs were burned and re-minted from the new contract upon unstaking, including issuance of additional souvenir NFTs. Implemented an on-chain points tracking system using Polygon state sync, enabling cross-chain updates of staking timestamps for reward calculations. Developed multiple NFT minting systems including Merkle tree whitelist sales, tiered pricing models, and time-based phase transitions. Built additional NFT utilities such as airdrop distribution and on-chain auction mechanisms.

Developed optimized ERC721 NFT smart contracts with custom gas-efficient implementations. Built the NFT metadata pipeline and deployed assets to IPFS for decentralized storage. Designed and generated NFT metadata structures used for minting and marketplace compatibility.