Minds users have the ability to remain anonymous. You are not required to provide any personal information on signup. You are only required to provide personal information if you wish to participate in our rewards program. To participate in our rewards program, you do need to provide your mobile device number. If you chose to, this number will be converted into a SHA-256 unique hash ID that we will tie to your account to prove uniqueness. We will not store your actual number on our servers.