Stacks introduces Bitcoin staking model for earning yield in BTC

Stacks, the Bitcoin Layer 2 ecosystem, has published a whitepaper describing a new Bitcoin Staking model that lets users stake BTC and earn yield paid in BTC.

From STX stacking to BTC staking

Stacks uses a consensus mechanism called Proof of Transfer, or PoX. In the previous model, users who wanted to earn BTC yield had to acquire and “stack” STX, the native token of the Stacks network. Miners would send BTC to these STX stackers as part of the consensus process, creating a flow of Bitcoin rewards back to participants.

The old STX stacking model offered yields that historically ranged from roughly 7% to 20% in BTC, though more recent rates have been variable and generally lower.

The new Bitcoin Staking model eliminates the STX requirement entirely. Users can stake BTC directly and earn BTC yield.

How the new model works

The whitepaper introduces the concept of BTC yield vaults as a central component of the new staking architecture. These vaults are designed to let Bitcoin holders deposit BTC and receive yield without needing to interact with the STX token economy at all.

The underlying mechanics still leverage Stacks’ existing Proof of Transfer infrastructure. Stacks doesn’t modify Bitcoin’s foundational code or require any changes to the Bitcoin protocol itself. Instead, it operates as a smart contract and Layer 2 ecosystem built on top of Bitcoin.

The specific yield rates for the new model haven’t been detailed in the whitepaper announcement, but the framework is designed to offer what the team describes as competitive Bitcoin-native returns.

Institutional providers that already facilitate BTC yield through STX stacking are expected to be among the first to distribute the new Bitcoin Staking product.

Why Bitcoin yield is the holy grail

Institutional allocators, in particular, often face mandate restrictions that prevent them from holding smaller-cap altcoins. A pure BTC-in, BTC-out model fits much more cleanly into traditional portfolio frameworks.

Babylon Protocol has been building Bitcoin staking infrastructure. EigenLayer has explored restaking models that could eventually extend to BTC. And wrapped Bitcoin on Ethereum continues to attract billions in deposits for DeFi lending and yield strategies.

What differentiates Stacks’ approach is the direct relationship with Bitcoin’s base layer through Proof of Transfer, which avoids the trust assumptions inherent in wrapping BTC on another chain.

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