# Patrick McCorry > Patrick has spent most of his adult life working on cryptocurrencies and his time was split across academic research and industry. ## Recent Posts - [Basics of hash function and their usage in cryptocurrencies](https://paragraph.com/@patrick-mccorry/basics-of-hash-function-and-their-usage-in-cryptocurrencies) - [Mental models for L1 and L2](https://paragraph.com/@patrick-mccorry/mental-models-for-l1-and-l2) - [Who are the block producers?](https://paragraph.com/@patrick-mccorry/who-are-the-block-producers) - [What is a smart contract?](https://paragraph.com/@patrick-mccorry/what-is-a-smart-contract) - [Ethereum's account model](https://paragraph.com/@patrick-mccorry/ethereum-s-account-model) - [Bitcoin's UTXO model](https://paragraph.com/@patrick-mccorry/bitcoin-s-utxo-model) - [The "crypto" in cryptocurrency](https://paragraph.com/@patrick-mccorry/the-crypto-in-cryptocurrency) - [How does everything tie together?](https://paragraph.com/@patrick-mccorry/how-does-everything-tie-together) - [Why are cryptocurrencies interesting?](https://paragraph.com/@patrick-mccorry/why-are-cryptocurrencies-interesting) - [A note on censorship-resistance for smart-contract enabled systems ](https://paragraph.com/@patrick-mccorry/a-note-on-censorship-resistance-for-smart-contract-enabled-systems) - [Cryptocurrency Class 2022](https://paragraph.com/@patrick-mccorry/cryptocurrency-class-2022) ## Blog Information - [Homepage](https://paragraph.com/@patrick-mccorry/): Main blog page - [RSS Feed](https://api.paragraph.com/blogs/rss/@patrick-mccorry): Subscribe to updates ## Optional - [All Posts](https://paragraph.com/@patrick-mccorry/): Complete post archive - [Sitemap](https://paragraph.com/@patrick-mccorry/sitemap-index.xml): XML sitemap for crawlers