In late 2017 and early 2018, an anonymous individual using the pseudonym "Pine" started a philanthropic project known as the Pineapple Fund. This mysterious donor revealed their plan to donate a significant portion of their Bitcoin wealth, which was estimated to be around 5,057 Bitcoins (worth tens of millions of dollars at the time) to various charitable causes.

The Pineapple Fund welcomed applications from nonprofit organizations and charities, and it received a flood of requests from around the world. Pine made numerous donations to causes such as clean water projects, mental health initiatives, and medical research. In total, Pine donated more than $55 million worth of Bitcoin to various charitable endeavors.

Pine's decision to remain anonymous added an element of mystery to the project, and it highlighted the potential for cryptocurrencies to be used for charitable purposes. The Pineapple Fund served as a reminder that Bitcoin and other cryptocurrencies could be powerful tools for philanthropy, enabling transparent and borderless donations to make a positive impact on a global scale.