[Bitcoin Reserve Proof Launched on Jack Dorsey's Crypto Financial App Cash App] According to Golden Finance, on May 4th, billionaire Jack Dorsey's crypto financial application platform Cash App officially launched the Bitcoin reserve proof feature this week, allowing over 60 million users to verify that the Bitcoin holdings on its platform are fully backed 1:1 by reserves. The market views this move as an important step forward in terms of transparency, user trust, and self-custody standards within the crypto industry. It is also seen as a positive signal for promoting the long-term healthy development of the industry.