> For the complete documentation index, see [llms.txt](https://rexbtc.gitbook.io/rex-bitcoin/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rexbtc.gitbook.io/rex-bitcoin/discreet-log-contracts-dlc/what-are-discreet-log-contracts-dlc.md).

# What are Discreet Log Contracts (DLC)?

Discreet Log Contracts (DLC) is a smart contract protocol designed to introduce smart contract functionality to Bitcoin. It achieves the security and tamper resistance of contracts through discrete logarithmic operations executed on the Bitcoin blockchain. Unlike traditional smart contracts, DLC contracts are verified using discrete logarithmic keys, ensuring the security and privacy of contract execution.