> For the complete documentation index, see [llms.txt](https://docs.solv.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.solv.finance/solvbtc-technical-architecture/bitcoin-mainnet-architecture.md).

# Bitcoin Mainnet Architecture

### Overview

SolvBTC is a Bitcoin-based custody and asset mapping protocol. Users deposit BTC into protocol-managed Bitcoin addresses and receive SolvBTC on Ethereum and other EVM-compatible chains at a 1:1 ratio. SolvBTC provides the foundational custody and issuance layer for BTC-based liquidity, DeFi participation, and related integrations.

The protocol continuously monitors Bitcoin deposits, processes minting and redemption requests, and manages Bitcoin transactions through a distributed threshold signing network based on FROST (Flexible Round-Optimized Schnorr Threshold). Around the FROST Network, SolvBTC incorporates a Vault Pool, onchain smart contracts, an Indexer, and Auditors to support the complete lifecycle of BTC custody and asset issuance.

***

### Architecture and Core Components

<figure><img src="/files/g5kkEiIA4HHLOcDtTMjO" alt=""><figcaption></figcaption></figure>

<p align="center"><sub>SolvBTC Architecture for Bitcoin Mainnet</sub> </p>

SolvBTC consists of the following core components:

* FROST Network
* Vault Pool
* Onchain Smart Contracts
* Indexer
* Auditors

These components work together to observe onchain events, assemble protocol state transitions, and execute Bitcoin and EVM transactions throughout the asset lifecycle.


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