# haruxe > Web designer, blockchain dev, and security researcher. Contributing to/securing Immunefi, KaijuKingz, and BAO Finance. ## Recent Posts - [Exposing Merkle Trees and Cryptographic Proofs](https://paragraph.com/@haruxe/exposing-merkle-trees-and-cryptographic-proofs) - [Mutable Currency and Regulation Terrorism](https://paragraph.com/@haruxe/mutable-currency-and-regulation-terrorism) - [Solidity Gas Optimizations, The Innovative & Dangerous](https://paragraph.com/@haruxe/solidity-gas-optimizations-the-innovative-dangerous) ## Blog Information - [Homepage](https://paragraph.com/@haruxe/): Main blog page - [RSS Feed](https://api.paragraph.com/blogs/rss/@haruxe): Subscribe to updates - [Twitter](https://twitter.com/haruxeETH): Follow on Twitter ## Optional - [All Posts](https://paragraph.com/@haruxe/): Complete post archive - [Sitemap](https://paragraph.com/@haruxe/sitemap-index.xml): XML sitemap for crawlers