Telegram Passport has been launched which is a unified authorization method for services that require personal identification. This lets you store your identity documents and personal data in the Telegram cloud using End-to-End Encryption.
Telegram Passport would let you instantly share your data with services that require real-world ID (finance, ICOs, etc.).
For a real-life implementation, see www.ePayments.com/tg which is the first electronic payments system to integrate Telegram Passport.
Your identity documents and personal data will be stored in the Telegram cloud using End-to-End Encryption. It is encrypted with a password that only you know, so Telegram has no access to the data you store in your Telegram passport. When you share data, it goes directly to the recipient.
Right now, data is stored on centralized system but in future, all Telegram Passport data will move to a decentralized cloud.
Please note that you need the latest version of Telegram to access this feature. Once you’ve uploaded some documents, you will see your data in Settings > Privacy & Security > Telegram Passport (on iOS: Settings > Telegram Passport).
Telegram is welcoming all developers to integrate Telegram Passport into their apps and services free of charge. It takes minimum effort and can save many hours of coding.