The Ethereum Foundation has formed the Silviculture Society, an external advisory group.The Silviculture Society aims to uphold Ethereum's core principles of open source, privacy, security, and censorship resistance.Members of the group include experts such as cryptographer Matthew Green and project founder Lefteris Karapetsas.In addition, the Ethereum Foundation has shown support for developer freedom by sponsoring an Ethereum developer with a $1.25 million donation.