The sign in process that happens between your terminal and keystone.sh allow you to access the Blockstack platform outside your browser. It makes sharing and contributing secrets possible between many users in a secure way.
As the source code is available on github, you can freely host your own version and register your app to Blockstack.
Spread the words and open issues ongithub for any questions or bugs. It will make the project better for everyone!
Blockstack provides private data lockers and a universal login with blockchain based security and encryption.
We leverage that technology to give developers a safe and easy way to manage secrets of their apps. A new way where every bit of data stays yours and is encrypted by default.
The platform handles user authentication using the Blockstack Naming Service (BNS), a decentralized naming and public key infrastructure built on top of the Bitcoin blockchain. It handles storage using Gaia, a scalable decentralized key/value storage system that looks and feels like localStorage, but lets users securely store and share application data via user-selected storage systems.
Learn more at Blockstack.org