# CAT on Fractal

The Covenant Attested Token (CAT) Protocol is a UTXO-based token system on Bitcoin, validated by miners using Bitcoin Script at Layer 1. It manages token minting and transfers via smart contracts called covenants. 

Key features include no reliance on external indexers, ensuring security through Bitcoin's consensus; modularity, allowing integration with various decentralized applications like AMMs and lending; programmable minting rules controlled by smart contracts; cross-chain interoperability for trustless asset bridging; and support for Simplified Payment Verification (SPV), enabling light clients to independently verify token authenticity.

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CAT protocol supports both fungible tokens (called [**CAT20**](https://catprotocol.org/cat20) standard) and non-fungible tokens (called [**CAT721**](https://catprotocol.org/cat721) standard). For more detail: <https://catprotocol.org/>

**Disclaimer:**

The content of this document is for informational purposes only. It does not constitute (i) investment advice or recommendations, (ii) an offer, solicitation, or inducement to purchase, sell, or hold digital assets, or (iii) financial, accounting, legal, or tax advice. Digital assets (including FTs and NFTs) are subject to market volatility, involve high risk, regulatory changes, and may depreciate in value. The information is provided "as is," and we make no warranties regarding its accuracy. Please consult your legal, tax, or investment professionals to determine whether trading or holding digital assets is suitable for you.


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