CORE is a BRC-20 token deployed on Bitcoin Ordinals. "Core" is the abbreviation for "Bitcoin Core," the official reference client for Bitcoin and the only Bitcoin client with an inscription. Bitcoin Core is the most widely used Bitcoin software. As of December 2023, there are over 17,000 Bitcoin Core clients, responsible for storing ledgers, providing complete Bitcoin nodes, mining, wallet functions, transaction verification, etc. Bitcoin clients are an indispensable and vital part of ensuring the complete and normal operation of the Bitcoin blockchain.