Bitcoin ($BTC) is the world's first decentralized digital currency, created in 2009 by a developer using the pseudonym 'Satoshi Nakamoto'. It is based on blockchain technology, ensuring transaction transparency and security through distributed ledger. The total supply of Bitcoin is fixed at 21 million coins, possessing anti-inflation properties, and is dubbed 'digital gold'. Bitcoin does not rely on traditional financial systems and is issued through a 'mining' mechanism, attracting numerous miners and investors to participate. In recent years, with the influx of institutional capital and changes in the macroeconomic environment, Bitcoin has gradually become a store of value and a safe-haven asset. However, its price is highly volatile and it also faces challenges from regulatory policies and market uncertainties.