By 2040, Bitcoin could become a key tool in digital identity management. Leveraging blockchain technology, Bitcoin could provide users with a more secure and tamper-proof means of identity authentication. The widespread adoption of decentralized identity systems (DID) will help individuals protect their privacy while simplifying cross-border authentication and service access processes. This development will further elevate Bitcoin's role in the digital society, solidifying its position as a symbol of decentralized technology.

By 2040, Bitcoin could become a key tool in digital identity management. Leveraging blockchain technology, Bitcoin could provide users with a more secure and tamper-proof means of identity authentication. The widespread adoption of decentralized identity systems (DID) will help individuals protect their privacy while simplifying cross-border authentication and service access processes. This development will further elevate Bitcoin's role in the digital society, solidifying its position as a symbol of decentralized technology.