# Reezo > 7+ years of developing. Solidity + backend Previous: Sharpshooter at @OriginsNFT ## Recent Posts - [How NFT metadata could be stored?](https://paragraph.com/@reezo/how-nft-metadata-could-be-stored) - [What is ERC721A and how does it differ from ERC721?](https://paragraph.com/@reezo/what-is-erc721a-and-how-does-it-differ-from-erc721) - [Oracles and ways to use them ](https://paragraph.com/@reezo/oracles-and-ways-to-use-them) - [What is Merkle Tree and how can it be used?](https://paragraph.com/@reezo/what-is-merkle-tree-and-how-can-it-be-used) - [What is a Re-Entrancy attack and how to protect smart contracts from it?](https://paragraph.com/@reezo/what-is-a-re-entrancy-attack-and-how-to-protect-smart-contracts-from-it) - [How tornado cash works?](https://paragraph.com/@reezo/how-tornado-cash-works) ## Blog Information - [Homepage](https://paragraph.com/@reezo/): Main blog page - [RSS Feed](https://api.paragraph.com/blogs/rss/@reezo): Subscribe to updates ## Optional - [All Posts](https://paragraph.com/@reezo/): Complete post archive - [Sitemap](https://paragraph.com/@reezo/sitemap-index.xml): XML sitemap for crawlers