Open the Contact page, you can see the first category on the top is named by "Me", regardless of what language you have set. In the category your name and email address are saved.
Press the Contact of yourself, you will see a string of words and numbers formatted like "Since 20xx. xx. xx" , which is the date when you start using MeSince and the date when your first Encryption Certificate is issued, and which means you have made a step into the new era of All Information Encrypted.
MeSince believes that such a day is worth memorizing, so keeps it down for you.