Hemi enables smart contracts that interact directly with Bitcoin. By embedding a Bitcoin full node in an EVM, developers can build Bitcoin-native applications using Solidity.
Hemi employs a Proof-of-Proof (PoP) consensus mechanism to anchor Hemi’s security to Bitcoin. PoP miners submit Hemi state commitments to Bitcoin.
Hemi’s ecosystem focuses on unlocking yield for BTC holders through LSTs and DeFi. Projects like Lorenzo and BitFi provide liquid staking solutions, while DeFi applications like Spectra provide additional yield opportunities on BTC LSTs.
The HEMI token will be used to pay for transaction fees, incentivizing Bitcoin security inheritance, staking, and incentives. Hemi will employ a veHEMI staking mechanism to access governance, sequencing, liquidity provisioning for Hemi tunnels, and more.
9.8% of HEMI’s initial token supply of 10.0 billion will be liquid at TGE. At launch, HEMI’s liquid supply will include allocations to the Community and Ecosystem, as well as the Hemispheres Foundation.
Primer
Hemi is a modular Layer-2 (L2) protocol that brings full programmability and composability to Bitcoin. By integrating a Bitcoin full node within an Ethereum Virtual Machine, Hemi treats Bitcoin and Ethereum not as competing, siloed networks, but as components of a supernetwork. This design inherits Bitcoin’s finality and censorship resistance while enabling smart contract execution and tokenization through the Hemi Virtual Machine (hVM).
At the heart of Hemi is the Hemi Virtual Machine (hVM). The hVM offers developers a familiar EVM-based environment while granting direct access to Bitcoin’s state. Combined with the Hemi Bitcoin Kit (hBK), which supports Bitcoin-native verification and transaction parsing within the modular framework. The hBK enables developers to build smart contracts that observe and respond to granular Bitcoin data. This unlocks a class of Bitcoin-native DeFi applications that were previously impractical or impossible to implement within the constraints of traditional Bitcoin scripting or standalone EVMs.
Hemi also introduces a consensus mechanism called Proof-of-Proof (PoP). PoP allows Hemi transactions to reach Bitcoin-equivalent security within a few hours. By anchoring to Bitcoin, Hemi preserves Bitcoin’s security guarantees while dramatically reducing the latency typically associated with finality on the Bitcoin network.
Interoperability is another foundational element of Hemi. The hVM maintains awareness of both Bitcoin and Ethereum states, enabling trust-minimized cross-chain asset transfers via Hemi’s Tunnels. These transfers integrate Bitcoin finality, which ensures they are backed by Bitcoin’s Proof-of-Work consensus mechanism. Hemi is led by former Bitcoin core developer Jeff Garzik and lead architect Max Sanchez. In September 2024, Hemi raised $15.0 million in a seed round led by YZi Labs (Binance Labs), Big Brain Holdings, and Breyer Capital. Hemi raised an additional $15.0 million in August 2025, in a funding round led by YZi Labs (Binance Labs), Republic Digital, and HyperChain Capital. Hemi launched its mainnet in March 2025 and has cultivated an ecosystem with over 70 integrations focused on enabling users to earn yield on their Bitcoin. Hemi’s token generation event (TGE) is expected to occur in Q3 2025.
Hemi initially emerged as a standalone Layer-1 (L1) blockchain, later transitioning to a modular Layer-2 (L2) architecture during its early development. This move aligned the protocol more closely with Bitcoin’s design ethos and avoided fragmenting Bitcoin-native liquidity across incompatible environments. The decision to embed a Bitcoin full node within an EVM execution layer was made to strike a balance between programmability and adherence to Bitcoin’s core principles.Following its testament debut at Bitcoin Nashville in 2024, Hemi launched its mainnet on March 12, 2025. Since then, the ecosystem has grown rapidly, with more than 70 teams building Bitcoin-focused applications across liquid staking, staking, and DeFi. These projects aim to unlock yield opportunities for BTC on Hemi’s BTCFi-focused network with cryptographic confirmations rooted in Bitcoin’s consensus.
Core Design Principles
Hemi is built on the belief that Bitcoin can serve as a secure foundation for programmable applications without altering its base layer. Its architecture preserves Bitcoin’s neutrality while enhancing its utility through modular execution and decentralized interoperability. The Proof-of-Proof (PoP) consensus mechanism anchors Hemi’s state to Bitcoin by rewarding independent miners for submitting cryptographic proofs via Bitcoin transactions, thereby providing timestamped validation without requiring miner coordination or changes to the Bitcoin consensus.
Hemi’s Tunneling system enables trust-minimized cross-chain asset transfers across Bitcoin, Ethereum, and Hemi. Unlike traditional bridges that rely on external validators, Tunnels maintain protocol-level state awareness of both Bitcoin and Ethereum within the Hemi virtual machine. This allows the network to natively verify cross-chain events and synchronize application logic across ecosystems without centralized intermediaries. Tunneling is tightly coupled with Hemi’s PoP consensus mechanism, which anchors transaction commitments to Bitcoin, ensuring finality is preserved through Bitcoin’s Proof-of-Work consensus mechanism.
Key Components
Hemi is structured around three core technical modules that serve different roles in enabling Bitcoin-aware smart contract development.
hVM (Hemi Virtual Machine): A customized Ethereum Virtual Machine that processes Solidity-based smart contracts while integrating native awareness of Bitcoin’s UTXO model. Developers can write applications in Solidity that interact directly with the Bitcoin state.
hBK (Hemi Bitcoin Kit): A developer toolkit that provides APIs and SDKs for querying Bitcoin data, signing transactions, and synchronizing cross-chain events. It simplifies development for teams building applications that depend on both Bitcoin and EVM environments.
PoP Mining Layer: A distributed set of miners, referred to as PoP Miners, that submit state commitments to Bitcoin. These participants are paid in HEMI tokens but incur BTC costs when publishing notarizations. This mechanism secures Hemi’s execution layer using Bitcoin’s consensus.
Together, these components position Hemi as an execution layer for Bitcoin that supports complex applications while adhering to Bitcoin’s foundational principles. The architecture supports programmability, security, and modularity in a single framework, and does so without requiring changes to Bitcoin itself.
Hemi Ecosystem
Hemi is shaping an ecosystem designed around the direct use of Bitcoin within programmable environments. By embedding a full Bitcoin node within an EVM through the hVM, Hemi enables developers to build advanced financial applications that operate directly on Bitcoin, without wrapping or leaving the Bitcoin base layer. This design unlocks previously inaccessible or overly complex use cases on other networks.
Several ecosystem teams are exploring new ways to generate Bitcoin yield while preserving native custody. Projects like BitFi, Swell, Pell, and Lorenzo are developing liquid staking and restaking solutions that allow BTC holders to earn yield while minimizing exposure to impermanent loss. DeFi strategies from Spectra, Ichi, and Yield Nest offer creative ways to unlock the capital trapped in Bitcoin that previously had limited yield opportunities. Hemi’s in-house protocols, such as Vesper and Odyssey, support modular composability and user access across applications. The functionality these protocols enable points to a broader focus throughout the Hemi ecosystem, a focus on building tools that extend Bitcoin’s role in decentralized finance without compromising on interoperability or developer experience.
Liquid Staking and Restaking Infrastructure for BTC
The Hemi ecosystem is evolving into a platform layer for Bitcoin-denominated capital. Protocols such as Lorenzo, BitFi, Pell, and Swell are building infrastructure that allows users to stake Bitcoin or its wrapped representations and receive liquid staking tokens (LSTs) in return. Lorenzo offers enzoBTC, a composable wrapped BTC product designed for use in DeFi and restaking strategies. BitFi issues bfBTC, a real-yield Bitcoin derivative backed by quant strategies and custodial security. Swell provides swBTC, a yield-bearing token for restaking WBTC across protocols like EigenLayer, Symbiotic, and Karak.
LSTs can be deployed across DeFi while accruing native Bitcoin-denominated rewards, but Pell extends their utility. Pell is a restaking network that allows holders of Bitcoin LSTs to provide cryptoeconomic security for decentralized validated services (DVSs), such as oracles, bridges, and data availability layers. This creates a layered system of capital efficiency where BTC assets can simultaneously earn staking, restaking, and application-level yields.
Applications for Yield and Liquidity
Applications built on top of Hemi allow users to generate yield from their Bitcoin LSTs in increasingly automated and composable ways. Spectra, Yield Nest, and Ichi are examples of protocols offering structured vaults, aggregated yield strategies, and risk-managed deployments of Bitcoin assets. Spectra focuses on modular, chain-agnostic vaults for liquid staking assets, while Yield Nest simplifies BTC yield aggregation through curated product offerings. Ichi facilitates native Bitcoin yield through DeFi instruments, including LP vaults and stabilized value tokens.
These applications abstract technical complexity, helping users capture opportunities across the DeFi stack without sacrificing exposure to BTC-denominated assets. They also enable developers to integrate BTC-backed collateral into lending, trading, and yield farming protocols. Together, these tools create a programmable capital layer for Bitcoin that extends beyond passive holding, transforming BTC into a productive asset across networks.
In-House Infrastructure and Wallets
Beyond core infrastructure and third-party integrations, the Hemi ecosystem includes in-house and affiliated protocols designed to expand onchain utility for Bitcoin-denominated assets. Vesper, a yield automation protocol, provides structured products for BTC LSTs, enabling users to earn passive returns with simplified exposure management. By integrating with Hemi’s native architecture, Vesper allows strategies to run across chains while retaining Bitcoin-denominated collateral.
Odyssey is a DeFi application that simplifies the DeFi experience by allowing users to trade, swap, loop, and access yield on Hemi within a single app. Odyssey abstracts away the complexities of cross-chain asset management, allowing users to deploy BTC-based assets across multiple protocols and yield strategies with minimal friction. Its built-in integrations with LSTs and DeFi apps make it a central interface for engaging with the broader Hemi ecosystem.
The HEMI Token
HEMI Token Utility
The HEMI token powers the Hemi ecosystem by paying network transaction fees. It also plays a crucial role in securing the network through cross-chain coordination by incentivizing Bitcoin security inheritance and providing payment for security aggregation via Hemi’s PoP consensus mechanism. Together, these functions anchor HEMI’s value to the core operations of Hemi’s infrastructure and long-term resilience.
Beyond securing Hemi, HEMI can be staked for veHEMI, which enables participation in governance and decentralized infrastructure operations such as Ethereum state publishing, sequencing, Bitcoin tunnel covenant emulation, and liquidity provisioning for Hemi’s tunnel system. HEMI is also used to bootstrap ecosystem adoption through grants, liquidity provisioning, and developer incentives. Future decentralized applications on Hemi may also build on top of veHEMI, tying the token more deeply into network operations and protocol-level coordination.
Token Allocation
HEMI has an initial total supply of 10.0 billion tokens, distributed across four major stakeholder categories:
25.0%(2.50 billion HEMI) - Team & Core Contributors
15.0% (1.50 billion HEMI) - Hemispheres Foundation
Vesting and Emissions Schedule
At the HEMI token generation event (TGE), approximately 9.8% of HEMI’s initial token supply will be in circulation. This initial supply comprises the first unlocked tranche from the Community and Ecosystem, as well as the allocations from the Hemispheres Foundation. In addition to Hemi’s 10.0 billion initial token supply, Hemi releases protocol emissions governed by a targeted annual inflation rate of 3-7%, providing ongoing incentives for network participants.
Hemi’s vesting schedule for each major allocation category is as follows:
Community & Ecosystem: Vesting terms vary by sub-allocation, ranging from immediate unlocks to 36 months.
Team and Core Contributors: 36-month vesting (12-month cliff, 24-month unlock)
Hemispheres Foundation: Governed transparently by the foundation
Protocol Emissions: Targeted annual inflation rate of 3-7%
Closing Summary
Hemi is building a Bitcoin-secured execution layer that merges EVM programmability with direct access to Bitcoin state. Its architecture and Proof-of-Proof consensus allow developers to interact with native Bitcoin while simultaneously enabling users to access a variety of yield opportunities on Bitcoin-denominated LSTs and integrated DeFi applications. Through trust-minimized cross-chain tunnelling and support for programmable capital, Hemi is positioned as a foundational layer for Bitcoin-based decentralized finance.
The upcoming launch of the HEMI token marks a pivotal milestone for the network. HEMI will power network operations, secure infrastructure through cross-chain coordination, and support ecosystem growth through governance, sequencing, and incentive mechanisms. It also underpins long-term alignment between users, developers, and protocol stakeholders. As Hemi matures, the token’s embedded utility and structured emissions model are designed to incentivize economic participation in Bitcoin’s evolving programmable economy.
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Hayden is a Research Analyst specializing in the intersection of crypto-economic incentive mechanisms and their role in DeFi, DePIN, and AI ecosystems. Prior to joining Messari, Hayden worked as a Research Analyst at The Block and as a Venture Associate at a crypto-native venture capital fund.
Hayden is a Research Analyst specializing in the intersection of crypto-economic incentive mechanisms and their role in DeFi, DePIN, and AI ecosystems. Prior to joining Messari, Hayden worked as a Research Analyst at The Block and as a Venture Associate at a crypto-native venture capital fund.
