# What is hemi.xyz? * Bitcoin You Can Program (No Wraps, No Bridges, No Go-Betweens)* By [Your Web3 Guy](https://paragraph.com/@yourweb3guy) · 2025-05-25 hemi, bitcoin, ethereum, blockchain --- > Wait… Bitcoin can do what now? Bitcoin, the most secure blockchain in the world, has always lacked one thing — the ability to program. While Ethereum and other smart contract platforms grew into full DeFi ecosystems, Bitcoin stayed still: valuable, sure, but not active. Any attempt to integrate it with DeFi required: * **Wrapped BTC** on Ethereum * Risky **bridges and custodians** * Oracles and **off-chain trust assumptions** That era is over. Meet [**Hemi.xyz**](http://Hemi.xyz) - a Layer 2 you can change that joins Bitcoin's safety with Ethereum's ability to program using no wrappers, no bridges, and zero go-betweens. * * * ### **What Is Hemi?** Hemi is a new system that brings real Bitcoin straight into smart contracts and without needing trust. **Key Innovation Highlights** * **hVM**: Ethereum Virtual Machine + full Bitcoin node * **PoP (Proof-of-Proof)**: Bitcoin-level finality in under 90 minutes * **Tunnels**: Direct, trustless BTC ↔ ETH communication (no bridges) * **TVL**: Over **$1 billion** locked in just **38 days** * **Backed by**: Binance Labs * **Built by**: Jeff Garzik (ex-Bitcoin Core) and Max Sanchez (PoP inventor) ![Article content](https://storage.googleapis.com/papyrus_images/bed2436fd2b0b3b1e3cdfe11f86a573a.png) Key Innovation by Hemi This isn’t a sidechain. It’s a **modular Layer 2** that treats Bitcoin not as a “dumb asset” but as a **first-class programmable citizen**. ![Article content](https://storage.googleapis.com/papyrus_images/b3eb89faaa968c51bcdccdf03c075706.png) How Hemi solves Scalability, Security, and Interoperability? ### **Adoption Traction:** ![Article content](https://storage.googleapis.com/papyrus_images/3855073cf62e8322156ca8586d2e6538.jpg) Adoptation on Hemi * **200,000+ PoP Miners** competing to anchor state to Bitcoin. * **20M+ Transactions** executed on Sepolia testnet—88% of testnet volume. * **914K Wallets** onboarded since Testnet V1. * **35+ Integrations** including Sushi, Pendle, Pyth, LayerZero. ### **Team & Investors:** ![Article content](https://storage.googleapis.com/papyrus_images/9245cc5452fb0cd43ff3a590872239bb.jpg) * **Jeff Garzik (CEO)**: Core Bitcoin dev since 2010. Collaborated with Satoshi. * **Max Sanchez (CTO)**: Creator of PoP. Built VeriBlock (secured $1B in assets). * **Backers**: Binance Labs, Breyer Capital, [**Crypto.com**](http://Crypto.com). * **Funding**: $15M raised at a $150M FDV. * * * **Hemi’s Technical Architecture - Core Components** --------------------------------------------------- ### **1\. hVM (Hemi Virtual Machine)** The hVM is a dual-execution runtime that combines: * **Ethereum Virtual Machine (EVM):** For running Turing-complete smart contracts. * **Bitcoin full node:** For real-time verification of BTC transactions and blocks. ![Article content](https://storage.googleapis.com/papyrus_images/8d18dec72025c11e8845091fdbae6683.png) hVM (Hemi Virtual Machine) **How it works:** **Bitcoin Integration:** The full Bitcoin node is baked into Hemi’s infrastructure. it: * Verifies incoming Bitcoin blocks. * Parses real Bitcoin UTXOs and transaction payloads. * Maintains SPV proofs (Simple Payment Verification). **EVM Layer:** The EVM operates like any L2 (e.g., Arbitrum, Optimism), but can access Bitcoin data natively using built-in opcodes or precompiles. Example: if (btcTx.confirmed && btcTx.amount >= 1 BTC) { releaseEscrow(); } **BTC-Oracles Are Native:** There's no Chainlink or relay needed. The Bitcoin node _itself_ is the oracle. This ensures: * No data latency. * No trust assumptions. * Bitcoin finality guarantees. ![Article content](https://storage.googleapis.com/papyrus_images/25b8667e081cacb46c740785baa43eaa.jpg) hVM (Hemi Virtual Machine) ### **2\. PoP (Proof-of-Proof)** **PoP** is a consensus layer that achieves **Bitcoin-level finality** by anchoring L2 state into the Bitcoin mainnet every 90 minutes. ![Article content](https://storage.googleapis.com/papyrus_images/c3cd75a0589cb42c99289b2b47e413e9.png) PoP (Proof-of-Proof) consensus ### **How it works:** **Merkle Commitments:** Hemi L2 batches transactions and creates a Merkle root. **Anchoring:** This Merkle root is committed as an OP\_RETURN or Taproot-embedded proof into Bitcoin mainnet. **Reorg Resistance:** Once the proof lands in 6 Bitcoin confirmations (~90 mins), the state is considered immutable. ![Article content](https://storage.googleapis.com/papyrus_images/8e2b2607703b19693f4a7670a91280c3.png) **Trust Model:** * No honest majority needed. * Finality is **inherited directly from Bitcoin**. * Validators must prove consistency with BTC chain, or be slashed. ### **3\. Tunnels (Trustless BTC**↔**ETH Bridge)** **Tunnels** enable atomic movement of BTC into Hemi’s EVM without wrapping or custodians. **How it works:** **User Sends BTC:** A user sends real BTC to a **Hemi-monitored deposit address**. **SPV Proof Generation:** After 6 confirmations, Hemi’s embedded Bitcoin node verifies the TX and creates an SPV proof (proof-of-inclusion in the Bitcoin block header). **Mint BTC on EVM:** A smart contract validates the SPV proof and mints **native BTC representation** (not a wrapped token, but a state-bound 1:1 mapping secured by Bitcoin headers). **Exit (Burn + SPV Exit):** * User burns the token. * Generates a Merkle proof. * Hemi releases BTC from a **non-custodial Bitcoin script**, usually a Taproot/Miniscript vault. **What makes it different:** * No multisig. * No third-party custodians. * Exit proofs are enforced on both BTC and EVM sides. ### **4\. Bitcoin-Secure Sequencer (BSS)** The BSS is a decentralized set of actors who produce Hemi blocks, resolve cross-chain state, and submit results to Ethereum and Bitcoin. ### **How It Works:** **Block Aggregation**: * Gathers Bitcoin headers, mempool transactions, and EVM txs. * Maintains a consistent view of Bitcoin’s state (via PBV, see below). **Block Production**: * Builds Hemi blocks that include EVM txs and Bitcoin context. **State Commitments**: * Posts calldata to Ethereum for fraud-proof-based settlement. * References Bitcoin headers in each block (used in PoP). ### **Security:** * Sequencers must **stake $HEMI** tokens. * **Slashing** enforces correct state commitments. * Can be replaced or challenged by decentralized validators. * * * **Developer Stack in Hemi** --------------------------- ![Article content](https://storage.googleapis.com/papyrus_images/97e757f6c1621e59a9c04b1e8fdc1e2f.png) Developer Stack in [Hemi.xyz](http://Hemi.xyz) * * * ### **Tokenomics: $HEMI Utility & Emissions Model** * **Total Supply**: 10B * **Annual Inflation**: 3–7% for sequencers and PoP miners ![Article content](https://storage.googleapis.com/papyrus_images/63a83fccb7bc9859f2e929252b5081ef.png) Hemi Tokenomics ### **Utility:** * **Gas**: Fees can be paid in ETH or $HEMI (1% conversion tax for ETH). * **Governance**: Proposals for upgrades, tunnel rules, token inflation. * **Staking**: Needed to run Sequencer or Challenger nodes. ### **What Can You Build with Hemi?** ### **Real BTC DeFi** * Borrow/lend BTC on-chain. * Create escrows that unlock when BTC TXs land. * DEXs that auto-settle with BTC, not wBTC. ### **BTC-native MEV** * Build relays that detect real BTC mempool TXs. * Use ETH contracts to frontrun or arbitrage BTC trades. ### **Cross-chain Triggers** * Example: If BTC sent to address X, auto-mint NFT on ETH. * Chain-level event handling across BTC ↔ ETH in real time. ### **Trustless Escrows** * BTC is locked in a Bitcoin Taproot script. * Conditions are monitored by smart contracts on EVM. * Fully decentralized OTC without middlemen. * * * ### **Why This Changes Everything?** ### **No More Wrapping** * No wBTC. * No bridges that get hacked. * BTC lives and breathes directly on-chain. ### **Bitcoin Maxis vs Ethereum Degens — United** * Bitcoin gives security + finality. * Ethereum gives composability + dev experience. * Hemi merges both natively. ### **TVL + Adoption** * $1B TVL in just 38 days. * Backed by **Binance Labs**, **Jeff Garzik (ex-Bitcoin Core)**, and **Max Sanchez (PoP inventor)**. * * * ### **What’s Next? The Road to TBTC Domination** **Why TBTC will dominate:** * Bitcoin has >$500B idle liquidity. * ETH-native DeFi is mature, but lacks pristine collateral. * Once builders realize they can build **real DeFi on BTC**, it unlocks: **Use cases to watch:** * Sovereign stablecoins backed by BTC. * BTC-based DAOs with provable treasury. * NFT royalties paid directly in BTC via smart triggers. * * * ### **TL;DR: Hemi = BTC Meets EVM, For Real** **No bridges. No wrappers. No trust assumptions.** Just **real, programmable Bitcoin**, powered by: * hVM (BTC + EVM in one) * PoP (Bitcoin-secured finality) * SPV-based Tunnels (trustless interop) * $1B TVL in 38 days * Backed by top builders > Bitcoin isn’t just money anymore. It’s programmable. And it’s live. * * * ### **Key Citations** * [**Hemi Official Website The Programmable Bitcoin Chain**](https://hemi.xyz/) * [**Welcome to the Hemi Docs Hemi**](https://docs.hemi.xyz/) * [**Hemi Network Price Price Today Live Chart USD converter Market Capitalization**](https://cryptorank.io/price/hemi-network) [**CryptoRank.io**](http://CryptoRank.io) * [**Jeff Garzik's Hemi Labs Debuts 440M Mainnet to Unify Bitcoin and Ethereum**](https://www.coindesk.com/tech/2025/03/12/binance-labs-backed-network-hemi-debuts-usd440m-mainnet-to-unify-bitcoin-ethereum) * [**With 440M in TVL Hemi Labs launches its mainnet TheStreet Crypto**](https://www.thestreet.com/crypto/innovation/with-440-million-in-tvl-hemi-labs-launches-its-mainnet) * [**Hemi TVL at 265 Million Pre-mainnet**](https://news.hemi.xyz/p/rethinking-blockchain-security-btcfi-and-more-cb140e380cf16aa3) * [**Jeff Garzik’s Bitcoin L2 Hemi Captures 265M TVL Before Mainnet AlexaBlockchain**](https://alexablockchain.com/hemi-captures-265m-tvl-before-mainnet/) * [**Hemi Labs Raises 15 Million to Launch Advanced Modular Blockchain Network Powered by Bitcoin and Ethereum**](https://www.businesswire.com/news/home/20240917913695/en/Hemi-Labs-Raises-%2415-Million-to-Launch-Advanced-Modular-Blockchain-Network-Powered-by-Bitcoin-and-Ethereum) * [**Hemi Network Explained How It Could Transform Bitcoin and Ethereum Scalability**](https://www.ccn.com/education/crypto/hemi-network-explained/) * [**Bitcoin.org**](http://Bitcoin.org) [**Official Bitcoin Website**](https://bitcoin.org/) * [**Ethereum.org**](http://Ethereum.org) [**Ethereum Official Website**](https://ethereum.org/) * [**Binance Labs Binance Labs Official Website**](https://labs.binance.com/) * [**Hemi Bitcoin Kit docs Hemi**](https://docs.hemi.xyz/building-bitcoin-apps/hemi-bitcoin-kit-hbk) * [**Hemi Virtual Machine docs Hemi**](https://docs.hemi.xyz/building-bitcoin-apps/hemi-virtual-machine-hvm) * [**Hemi Mainnet Launches with Over 440M TVL 50 Ecosystem Partners and a Surge of Incoming Liquidity Commitments Coin Edition**](https://coinedition.com/hemi-mainnet-launches-with-over-440m-tvl-50-ecosystem-partners-and-a-surge-of-incoming-liquidity-commitments/) * [**Blockchain Innovator Hemi Labs Launches 440M Mainnet—A New Era for Crypto Crypto Head**](https://cryptohead.io/news/blockchain-innovator-hemi-labs-launches-440m-mainnet-a-new-era-for-crypto/) --- *Originally published on [Your Web3 Guy](https://paragraph.com/@yourweb3guy/what-is-hemi)*