Fractal Bitcoin, a highly awaited scaling solution for Bitcoin (BTC) supported by the wallet provider Unisat, has officially launched its mainnet today. This new scaling approach is integrated directly into the Bitcoin Core codebase.
 
Setting Itself Apart
The mainnet launch follows a trial phase on a testnet that started in July 2024. Fractal Bitcoin distinguishes itself as the sole scaling solution utilizing the core Bitcoin code, which helps distinguish it compared to various other Bitcoin sidechains and alleged Layer 2 solutions by concentrating on Bitcoin-native features rather than Ethereum Virtual Machine (EVM) compatibility. Additionally, it enhances overall capabilities by integrating the OP_CAT opcode.
The network boasts block confirmation times of under 30 seconds and a 20-fold increase in capacity per layer through recursive layering. Fractal Bitcoin supports Bitcoin protocols such as BRC-20, Runes, and Ordinals. It will also feature a decentralized exchange named PizzaSwap on the mainnet.
 
A New Mining Model
The project has introduced a new mining model called Cadence Mining, which merges permissionless mining with Bitcoin to bolster network security. Unisat and blockchain investment and development firm Block Space Force are leading the project as primary contributors.
With the mainnet launch, Fractal Bitcoin has also unveiled its native token, ticker FB, with a total supply of 210 million tokens. Half of these tokens are designated for PoW (Proof-of-Work) mining, while the other half has been pre-mined for various uses, including allocations for core contributors, investors, the ecosystem treasury, and community grants.