> For the complete documentation index, see [llms.txt](https://cvnnt.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cvnnt.gitbook.io/documentation/introduction/why-use-covenant/self-custody-defi-for-bitcoin.md).

# Self-custody DeFi for Bitcoin

Covenant is a deterministic automated distributed system with self-executing on-chain programmable operations and deterministic transparent rules. 

Covenant system delivers real DeFi to Bitcoin. Utilize your real BTC in cross-chain DeFi activity trustlessly and hold your keys and ownership - Covenant system eliminates centralized gatekeepers, trusted federations, wrapping, custodial bridges, middlemen, off-chain parts or delays.

Deterministic, full EVM-fueled smart contract programmability along with on-chain functionality for self-custody on native Bitcoin assets allows Covenant system to provide Bitcoin users with 100% self-custody control on their native BTC assets during seamless BTCFi operations algorithmically - without any wraps, off-chain counterparties or trusted entity control.