# Whitepapers

## Primary Whitepapers

These are the foundational documents detailing the core principles, mechanisms, and functionalities of BitFlow.

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There are no primary whitepapers available. Check back soon.
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## Additional Whitepapers

These whitepapers pertain to supplementary features, services, or mechanisms that BitFlow has introduced or integrated over time.

### [sBTC Whitepaper](https://stx.is/sbtc-pdf)

This whitepaper outlines sBTC, a novel Bitcoin synthetic derivative featuring a decentralized two-way peg mechanism with Bitcoin, operating on the Stacks layer.

This whitepaper was released on December 13th, 2022.

### [Sovryn Whitepaper](https://wiki.sovryn.com/en/technical-documents/black-paper?_gl=1*12s3boi*_ga*MTM1MzMyODQ0My4xNjg2ODYyNjUz*_ga_JLNF5Q0CP9*MTY5MTcxOTA0Mi4xNS4wLjE2OTE3MTkwNDIuNjAuMC4w&_ga=2.188107616.930470751.1691703731-1353328443.1686862653)

This whitepaper provides an overview of Sovryn, a non-custodial and permissionless smart contract-based system for Bitcoin lending, borrowing and margin trading, operating on the Rootstock network.

This whitepaper was released on January 19th, 2021.

### [Stacks Nakamoto Whitepaper](https://gaia.blockstack.org/hub/1AxyPunHHAHiEffXWESKfbvmBpGQv138Fp/stacks.pdf)

This whitepaper outlines Stacks, an open-source platform designed to facilitate smart contracts, DeFi, NFTs, and apps on Bitcoin. It particularly highlights the forthcoming "Nakamoto" release, which is expected to introduce numerous improvements.

This whitepaper was released on December 13th, 2022.

### [Rootstock Whitepaper](https://docs.rsk.co/RSK_White_Paper-Overview.pdf)

This whitepaper provides an overview of Rootstock (RSK), a versatile smart contract platform fortified by the Bitcoin network. RSK operates as a merge-mined sidechain, seamlessly integrating with Bitcoin while preserving its security attributes.

This whitepaper was released on November 19th, 2015.


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