Starknet Unveils Plans to Settle on Bitcoin and Ethereum, Aiming to Unify the Two Largest Blockchains

In a bold move that could revolutionize blockchain interoperability, Ethereum Layer 2 scaling solution Starknet has unveiled plans to settle on both Bitcoin and Ethereum

Starknet is aiming to settle on both Bitcoin (BTC) and Ethereum (ETH), in a move that could bring the two largest blockchains together under a single execution layer.

The Starknet Foundation, in its March 11 Bitcoin roadmap, unveiled its goal to position Starknet as Bitcoin’s execution layer, aiming to expand the blockchain’s capabilities.

The goal is to scale Bitcoin from its current 13 transactions per second to thousands, reducing block times, cutting gas fees, and vastly improving the user experience.

Why Bitcoin Needs an Execution Layer

The Starknet Foundation noted that most Bitcoin today remains static in wallets and exchanges, largely due to the network’s original design constraints.

Bitcoin’s lack of scalability and its inability to natively support applications beyond simple transactions have prevented it from evolving into a broader financial ecosystem.

While some investors continue to view Bitcoin as “digital gold,” Starknet believes there is an increasing demand to expand Bitcoin’s utility beyond just a store of value.

The ability to enable staking, lending, borrowing, leveraged trading, and yield farming could push Bitcoin into a new era of decentralized finance (DeFi).

The Role of OP_CAT in Unlocking Bitcoin’s Programmability

Previously, Eli Ben Sasson, CEO of StarkWare (provider of the STARK proof technology that contributes to Starknet), highlighted the importance of OP_CAT—a Satoshi-era opcode that was disabled over time due to evolving security concerns.

If successfully reintroduced, OP_CAT would allow Starknet to settle directly on the Bitcoin blockchain, unlocking the potential for native smart contract capabilities on Bitcoin.

If successful, developers would be able to build decentralized applications (dApps) on Bitcoin without any intermediary, expanding Bitcoin’s use cases significantly.

Starknet Joins Forces with Bitcoin Web3 Wallet Xverse

As part of its expansion strategy, Starknet is collaborating with Xverse, a leading Bitcoin Web3 wallet, to bring Bitcoin’s DeFi take-off moment closer.

Ken Liao, founder and CEO of Xverse, pointed out that wallets should not merely serve as storage solutions but should empower users to fully engage with Bitcoin’s expanding utility.

According to Liao, the long-term vision is to realize trustless DeFi on Bitcoin, ensuring users can interact with dApps and financial protocols smoothly without any intermediary.

The integration between Starknet and Xverse is slated for Q2 2025, promising to be a turning point for Bitcoin’s DeFi landscape.

Vitalik Buterin’s Take on a Bitcoin Layer 2

In a March 11 X Space discussion, Ethereum co-founder Vitalik Buterin expressed strong support for a proper Bitcoin Layer 2 solution that maintains the necessary security properties to facilitate fully trustless transactions.

According to Buterin, such an innovation would “make crypto payments great again” and enable more seamless use cases, including decentralized exchanges and other DeFi applications. He added that we need more efficient ways to connect the Bitcoin and Ethereum ecosystems, allowing assets to move more smoothly between the two chains.

“If you go back to the white paper, Bitcoin was meant to be a peer-to-peer electronic cash system, and obviously, Layer 1 is not nearly scalable enough for that,” Buterin noted. He also discussed the limitations of the Lightning Network, suggesting that a more robust execution layer would be required to fully realize Bitcoin’s original vision.

Starknet Establishes a Bitcoin Reserve

As part of its commitment to Bitcoin’s long-term integration, StarkWare announced the establishment of a Bitcoin reserve, with a growing portion of its treasury being held in cryptocurrency.

This move is part of a broader trend among blockchain firms, where holding Bitcoin as a reserve asset signifies confidence in its long-term value and utility.

By doing so, StarkWare is reinforcing its belief that Bitcoin is not just a passive investment but a foundational element of the future decentralized financial system.

A Major Step Toward Blockchain Unification

With Starknet’s planned integration of Bitcoin and Ethereum, the industry is witnessing a significant step toward uniting the two largest networks under a single Layer 2 execution layer.

This integration could unlock a new wave of innovation, providing users with scalable, low-cost, and efficient transaction capabilities across both ecosystems.

By scaling Bitcoin’s transaction capacity and enabling smart contract functionality, Starknet is preparing the way for Bitcoin’s evolution into a fully functional financial system capable of more than just simple transactions.

The collaboration with Xverse, support from Vitalik Buterin, and the establishment of a Bitcoin reserve all attest to the momentum behind this vision.

If Starknet succeeds in its mission, we could see Bitcoin transition from a static store of value to a thriving DeFi powerhouse, seamlessly integrated with Ethereum’s smart contract ecosystem.