> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flashnet.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Introducing Flashnet

> Bringing Bitcoin markets back onto Bitcoin

## What is Flashnet?

Flashnet is a modular exchange stack for Bitcoin. It is designed to rival the performance of TradFi exchange systems without any of the custody, and without introducing blockchain-related innefficiencies to execution. This is facilitated by [Spark](https://spark.money/), a UTXO scaling solution we helped build that enables near-instant, zero-fee settlement of Bitcoin and other assets. Flashnet powers any type of market with native Bitcoin settlement.

### What is Spark?

<img className="block dark:hidden" src="https://mintcdn.com/flashnet-9a0adcc4/9LEJH5DsI8oouIuR/assets/spark-light.png?fit=max&auto=format&n=9LEJH5DsI8oouIuR&q=85&s=1669d36209051f9469e5118c3162e608" width="2129" height="1234" data-path="assets/spark-light.png" />

<img className="hidden dark:block" src="https://mintcdn.com/flashnet-9a0adcc4/9LEJH5DsI8oouIuR/assets/spark-dark.png?fit=max&auto=format&n=9LEJH5DsI8oouIuR&q=85&s=55252aa304c6b89e99d3adb35e4512c7" width="2129" height="1234" data-path="assets/spark-dark.png" />

Spark scales Bitcoin using pure cryptographic messaging. Learn more [here](https://docs.spark.money/spark/spark-tldr). Spark is not a blockchain, and as such does not suffer from the same bottlenecks as most L2's such as bridging, block creation, transaction ordering, or consensus. The user retains the power to unilaterally exit at all times, even with open orders on Flashnet.