# Overview

### What is Function ? 

Function is building the financial infrastructure that makes Bitcoin productive, unlocking yield, liquidity, and capital efficiency for holders across DeFi and traditional finance. FBTC turns Bitcoin into an asset that works.

### What is FBTC? 

FBTC represents the first omnichain Bitcoin yield asset, enabling BTC holders to participate in structured, risk-managed and programmatic yield strategies. FBTC is fully backed on a 1:1 basis with BTC, Bitcoin Reserve Address List is public and can be verified at any time. FBTC combines the security of Bitcoin reserves with the flexibility of smart contracts, creating a secure and efficient bridge between the Bitcoin network and modern DeFi protocols.

### What problem does FBTC solve?

FBTC transforms idle Bitcoin into a productive asset, bringing native BTC liquidity into DeFi. Bitcoin holders can access yield-generating strategies without selling their BTC - enhancing Bitcoin's utility while earning additional returns on their holdings. This makes FBTC a powerful tool for maximizing the potential of Bitcoin in the DeFi ecosystem.

To see the value of productive Bitcoin, compare the returns: simply holding BTC versus earning a steady 3% annual yield with FBTC.

<p align="center"><strong>BTC Growth with 3% APY</strong></p>

<figure><img src="https://4102630944-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSdfKsVfWUlwTQH1ZXZQG%2Fuploads%2FOSxNgWjCD6aEOuILWYWV%2FFrame%201739332384%20(2).png?alt=media&#x26;token=3f5ab23d-7eaa-4f5f-a45b-c2d8e4ae315b" alt=""><figcaption><p>Illustrative returns; historical performance is not indicative of future returns.</p></figcaption></figure>

## Key Features

<table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><h3>💹 <strong>Yield Generation</strong></h3><p>FBTC enables users to participate in various yield-generating activities such as lending, staking, and liquidity provision, maximizing the value of their BTC holdings.</p></td><td></td><td></td></tr><tr><td><h3>🌐 Cross-Chain Interoperability</h3></td><td>FBTC facilitates the transfer of BTC across multiple blockchain networks, enhancing liquidity and usability in various dApps and financial services.</td><td></td></tr><tr><td><h3>🔐 Security and Transparent</h3><p>FBTC employs advanced security measures like Multi-Party Computation (MPC) and Threshold Signature Schemes (TSS) to protect assets and ensure decentralized control, maintaining full transparency, with every BTC <a href="https://www.fxn.xyz/proof_of_assets">verifiably backed 1:1</a>.</p></td><td></td><td></td></tr></tbody></table>


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