Fractal Bitcoin, a new sidechain launched by Unisat Wallet, has introduced the CAT20 token standard. This new protocol allows the deployment of non-native tokens on Bitcoin. CAT20 currently has 22,611 holders and 693,617 transactions within 24 hours of its launch. The total supply of CAT20 is 21,000,000, with 59% already minted. The average CAT per wallet is 544. Notably, CAT20 has 7,763 holders and 0 premine tokens, with 17% of the supply minted by the Chinese and others using nodes. Additionally, Dotswap has released a CAT20 minter, facilitating the minting process. The introduction of CAT20 has sparked comparisons with other protocols like Runes and OP_CAT, with discussions on their respective functionalities and potential impacts on the Bitcoin ecosystem.