The blockchain interoperability space received a significant boost on September 18, 2024, as Hemi Labs announced a $15 million funding round led by Binance Labs, Breyer Capital, and Big Brain Holdings. The startup, co-founded by former Bitcoin core developer Jeff Garzik and blockchain engineer Max Sanchez, aims to create what it calls a “supernetwork” that unites Bitcoin and Ethereum under a single modular framework.
TL;DR
- Hemi Labs raised $15 million in its first institutional funding round
- Binance Labs, Breyer Capital, and Big Brain Holdings led the investment
- The platform uses a novel Proof-of-Proof consensus to bridge Bitcoin and Ethereum
- Co-founder Jeff Garzik is a former Bitcoin core developer and Bloq co-founder
- Additional investors include Crypto.com, Web3 Ventures, Hyperchain Capital, and Alchemy
Bridging the Oldest Divide in Crypto
Since Ethereum launched in 2015, the two largest blockchain ecosystems have operated largely in parallel, with limited native communication between them. Hemi Labs is tackling this gap head-on with a technology that integrates Bitcoin directly within an Ethereum Virtual Machine environment, enabling smart contracts on Ethereum to interact with Bitcoin’s network without relying on wrapped tokens or third-party custodians.
The company’s approach centers on a consensus mechanism known as Proof-of-Proof, originally developed by co-founder Max Sanchez during his earlier work on VeriBlock at Bloq’s incubator program. After VeriBlock wound down, Sanchez repurposed the technology for Hemi, adapting it for the current blockchain landscape.
“This is kind of the evolution of some of the technology we built there with Proof-of-Proof,” Sanchez explained. “And then bringing that into a chain that makes sense in 2024 versus 2017.”
A Strategic Launch at Bitcoin Conference Nashville
Hemi Labs first publicly debuted in July 2024 at the Bitcoin Conference in Nashville, positioning itself at the intersection of the two most valuable blockchain networks. The timing was deliberate—2024 has been a landmark year for Bitcoin, with the approval of spot Bitcoin exchange-traded funds earlier in January bringing unprecedented institutional capital into the ecosystem.
Bitcoin was trading at approximately $61,650 on September 18, 2024, according to CoinMarketCap data, with a total market capitalization exceeding $1.2 trillion. Ethereum, the second-largest cryptocurrency by market cap, was priced around $2,369 the same day. The sheer scale of both networks underscores the significance of any project attempting to bridge their capabilities.
Not the First, but Possibly the Most Ambitious
Hemi is not alone in pursuing Bitcoin-Ethereum interoperability. In July 2024, Bybit Web3 and Ignition announced a partnership to provide decentralized finance-based integration between the two networks. However, Sanchez believes Hemi’s technical foundation—built on newer architecture and designed to transcend the traditional boundaries of both communities—sets it apart.
The startup plans to use the fresh capital to expand its engineering team, develop additional Bitcoin interoperability features, and offer developers enhanced customization options. Community adoption is also a priority, with plans for incentivization programs and grants to attract builders to the platform.
Institutional Backing Signals Confidence
The breadth of the investor consortium reflects growing institutional interest in cross-chain infrastructure. Beyond the lead investors, participants in the round included Crypto.com, Web3 Ventures, Hyperchain Capital, Alchemy, and SALT Fund. Ted Breyer of Breyer Capital—an early investor in Facebook and Spotify—voiced strong support for the team’s vision.
“The Hemi team has a clear and compelling vision for unlocking the programmability, portability, and potential of Web3,” Breyer said. “With a distinguished track record, they are uniquely positioned to deliver.”
Sanchez noted that the company is currently generating the most enthusiasm from web developers and computer scientists, but expressed hope that the platform would soon appeal to a broader audience, particularly anyone interested in decentralized finance using Bitcoin and Ethereum assets together.
Why This Matters
The Bitcoin-Ethereum divide has been one of the most persistent structural limitations in the cryptocurrency space. While wrapped Bitcoin and bridge protocols have enabled some cross-chain activity, these solutions typically introduce counterparty risk and custodial dependencies. If Hemi’s Proof-of-Proof consensus mechanism delivers on its promise of native Bitcoin-Ethereum communication, it could unlock a new generation of DeFi applications that leverage the security of Bitcoin’s proof-of-work alongside Ethereum’s programmability—all without trusting an intermediary. In a year where both networks have attracted record institutional flows through ETFs, the demand for seamless interoperability has never been higher.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Always conduct your own research before making investment decisions.
jeff garzik involved? instant pass lol. dude has been attached to so many scaling projects that went nowhere
garzik track record aside, the proof-of-proof mechanism is genuinely novel. wrapping BTC on ETH has been a security nightmare, native bridging would be different
fair point on garzik but binance labs doing due diligence counts for something. they dont throw $15M at garbage
binance labs doing the lead is notable. their track record on infrastructure plays is solid even if consumer-facing stuff has been mixed
btc and eth have been siloed for 9 years. if proof-of-proof actually works at scale this changes the entire cross-chain landscape
Proof-of-Proof consensus is actually interesting. bridging BTC and ETH natively has been a genuine gap since 2015
a16z and binance labs both backing it. cap table is legit even if the tech is unproven