FindDevice finds the Device from the database with the provided ID.

FindUser finds the User from the database with the provided ID.

LastLink returns the last Link in a User's sigchain.

NewDevice returns a new instance of Device.

NewLink returns a new Link.

NewULID generates a new ULID - a lexically sortable UUID.

NewUser returns a new instance of User.

UserExists is a lightweight check to see if a User with a given ID is stored in the database.

Device is a data model of a users device (browser extension, mobile app).

Link represents a single entry in a User's sigchain.

User data model.