# Introduction

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXfsZs9MLEm6Ng9SIjhOGHiqAylY5KF0aY-H96ooiyfQVK6cyTDZGA6OWgPmDngZgeEqAbUXxyA8I7CYi9anC4Gg8-yRfojjU7TJOK255x0I7vdwdAbcYxgFRyexydepBw2PLQA8eqtBAShveEaWxkqKoVCQ?key=LdTA2DPbhTso83EtzU1n6g" alt=""><figcaption></figcaption></figure>

Arch allows developers to tap into the full liquidity and security of the world’s most decentralized blockchain without forcing their users to bridge.&#x20;

***Arch is not a L2 nor a metaprotocol.***&#x20;

Its core innovation is a novel FROST + ROAST signature scheme that combines with a specialized VM and Validator Network to provide trust-minimized execution. It offers more secure and decentralized utility than bridge-based options, including L2s that sacrifice liquidity for scalability, and meta-protocols, which are limited to state changes but can’t offer the programmatic decentralized asset transfers needed for Turing-complete programs.

Arch’s unique architecture enables trust-minimized programmable multisigs, multi-party computation, cross-program invocations, protocol interoperability, and other elements essential to building the pillars of Bitcoin DeFi, including lending markets, AMMs, and stablecoins.

***Arch does not require any new op codes or soft forks.***

Utilizing Arch's innovative design construct, dApps can now build with the needed flexibility and robustness without necessarily sacrificing self-custody, liquidity and interoperability.

&#x20;Arch makes it possible for Bitcoin users to develop and interact with decentralized applications without taking on additional trust assumptions.&#x20;

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Discover the future of Bitcoin programs with **Arch Network**.