Key Points
Hemi is a modular Layer 2 blockchain that integrates the security of Bitcoin with the programmability of Ethereum.
Hemi Virtual Machine (hVM) embeds Bitcoin nodes in the EVM, allowing smart contracts to directly access Bitcoin data.
Tunnel provides a cross-chain system that enables asset transfers between Bitcoin, Ethereum, and Hemi without relying on traditional cross-chain bridges.
HEMI is the native token of the protocol, used across the ecosystem for governance, staking, paying Gas fees, and distributing rewards.
What is Hemi?
Hemi is a modular Layer 2 blockchain designed to connect Bitcoin and Ethereum through a unified platform with interoperability. The protocol combines the security of Bitcoin with the programmability of Ethereum, creating a shared environment that allows smooth interaction between the two ecosystems.
The network achieves this goal through the Hemi virtual machine (hVM). hVM is an EVM-compatible execution environment with a full Bitcoin node built-in, allowing smart contracts to directly access Bitcoin data. The network also employs a Proof of Proof (PoP) consensus mechanism to anchor Hemi's state to the Bitcoin blockchain, enhancing network security and final confirmation speed.
With this architecture, developers can build decentralized applications (dApps) that can interact directly with Bitcoin while maintaining compatibility with Ethereum tools and standards.
History
The project was co-founded by early Bitcoin core developer Jeff Garzik and blockchain security expert, former Coinbase engineer Max Sanchez. They created Hemi Labs, dedicated to bridging the script environment of Bitcoin and the smart contract ecosystem of Ethereum.
How does Hemi work?
The Proof of Proof (PoP) consensus mechanism
Hemi adopts the Proof of Proof (PoP) consensus mechanism to anchor Hemi's state to the Bitcoin blockchain for enhanced network security. In addition to its own validators, Hemi also introduces PoP miners who regularly publish proofs of the network state to the Bitcoin chain.
These miners collect block headers, generate cryptographic proofs, and write them into the Bitcoin blockchain. In return, they receive rewards paid in the native token of Hemi. Due to the potential fluctuations in Bitcoin's block time and fees, these proofs may not be written into every block.
As a result, Hemi adopts a finality delay of 9 Bitcoin blocks (typically around 90 minutes), after which the blocks are considered finally confirmed. By linking its consensus to Bitcoin, Hemi effectively reduces the likelihood of on-chain disputes and chain reorganizations.
Key Features
Hemi Virtual Machine (hVM)
Hemi Virtual Machine (hVM) is a modified version of the Ethereum Virtual Machine (EVM) that has a built-in Bitcoin node. This allows smart contracts on Hemi to read Bitcoin-related information, including transactions, balances, and UTXOs. Developers can access this data through custom precompiled smart contracts, which act as built-in shortcuts to directly retrieve Bitcoin information.
To ensure data immediacy, Hemi uses a lightweight process called Tiny Bitcoin Daemon (TBC) to connect to the Bitcoin network, download blocks, and synchronize across all Hemi nodes. By including the latest Bitcoin data in each new Hemi block, the network can maintain consistent Bitcoin state information, allowing smart contracts on all nodes to access synchronized data.
Tunnel
Hemi Network adopts a cross-chain mechanism called Tunnel, which allows asset transfers between Bitcoin, Ethereum, and Hemi without the need for traditional cross-chain bridges. Tunnel does not rely on external relays but directly tracks the states of the two chains at the protocol level.
When you deposit assets, the assets will be locked on the original chain, while equivalent tokens will be generated on Hemi, allowing you to use them immediately within the Hemi ecosystem. To withdraw, the tokens on Hemi will be destroyed, and then the original chain assets will be released after the transaction is completed.
As of September 2025, Tunnel has supported various token standards, including ERC-20 and BRC-20. In the future, Hemi plans to support more Hemi native assets and Bitcoin native assets, allowing you to interact smoothly between the DeFi ecosystem of Bitcoin and Ethereum in more ways.
Hemi Bitcoin Kit (hBK)
The Hemi Bitcoin Kit (Hemi Bitcoin Kit, abbreviated as hBK) is a library of smart contract tools built on Hemi that allows developers to easily access Bitcoin data. hBK works in conjunction with the Hemi virtual machine that has a built-in Bitcoin node, enabling smart contracts to directly access Bitcoin information without relying on external relays or complex infrastructure.
With the various functions of the tool library, developers can more efficiently query Bitcoin data, and future updates are expected to introduce more advanced tools. This suite provides developers with a way to seamlessly integrate Bitcoin into decentralized applications (dApp).
HEMI Token
HEMI is the native token of the Hemi protocol, with a maximum supply of 10 billion. It has various uses throughout the ecosystem, including:
Governance: HEMI holders can vote on protocol upgrades, parameter adjustments, and ecosystem proposals, collectively determining the future direction of the network.
Security Assurance: By staking HEMI, validators are incentivized to submit states to the Bitcoin mainnet to support the network's PoP consensus mechanism.
Gas Fees: HEMI can be used to pay transaction fees for operations such as deploying contracts on hVM, accessing Bitcoin states, and cross-chain transfers via Tunnel.
Staking Rewards: Staking HEMI can earn veHEMI, allowing holders to receive a portion of network rewards, including block rewards and transaction fees.
Binance HODLer Airdrop Launches Hemi (HEMI)
On September 23, 2025, Binance announced that HEMI would be the 43rd project to be included in the Binance HODLer Airdrop program. During the period from September 17 to 19, users who subscribed to BNB principal protection and/or on-chain earning products could receive HEMI airdrop rewards. The HODLer Airdrop program allocated a total of 100 million HEMI tokens, accounting for 1% of the total supply.
HEMI has been listed and carries seed tags, supporting trading pairs with USDT, USDC, BNB, FDUSD, and TRY.
Conclusion
Hemi is a modular Layer 2 blockchain designed to connect Bitcoin and Ethereum through a single platform. By launching the Hemi virtual machine that can directly access Bitcoin data and anchoring the PoP consensus mechanism to Bitcoin, the network provides the infrastructure for applications to leverage the advantages of both ecosystems simultaneously.
While the core goal of the platform is to expand Bitcoin's functionality, its architecture also supports various applications, including DeFi, cross-chain liquidity, and various Web3 services that require trustless interactions between different ecosystems.
Further Reading
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