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Learn how to create truly immutable smart contracts (Ethereum / EVM) that can hold all metadata and SVG images on-chain. 0:00:00 - Intro 0:02:35 - Put metadata to struct 0:03:20 - OpenSea standard 0:05:00 - Return JSON meta from contract 0:06:40 - SVG image on-chain 0:11:00 - Testing JSON 0:13:00 - Deploy to Rinkeby testnet 0:14:00 - OpenSea test Code: https://gist.github.com/Chmarusso/045ee79fa9a1fae55928a613044c9067 #ethereum #nft #smartcontracts Instagram: https://instagram.com/fullstak_pl/ Discord: https://discord.gg/wntz749YWW Twitter: https://twitter.com/ArtiChmaro