Each user controls which apps can request their Vcard for verification. The user gives each app permission via text confirmation to the primary mobile phone number (2-factor authentication).
App developer should be able to subscribe to the Vcards that have authorized the app.
App developer should be able to return a single Vcard by sending a unique _id. For example, a user may have an _id from a NFC tag, BLE tag, phone, or other device that is linked to their Vcard account through a connected app.
All of these connected items (NFC tag, BLE tag, phone, other device) must be approved to be linked to the Vcard account by the user via text confirmation to the primary mobile phone number (2-factor authentication).
Each user controls which apps can request their Vcard for verification. The user gives each app permission via text confirmation to the primary mobile phone number (2-factor authentication).
App developer should be able to subscribe to the Vcards that have authorized the app.
App developer should be able to return a single Vcard by sending a unique _id. For example, a user may have an _id from a NFC tag, BLE tag, phone, or other device that is linked to their Vcard account through a connected app.
All of these connected items (NFC tag, BLE tag, phone, other device) must be approved to be linked to the Vcard account by the user via text confirmation to the primary mobile phone number (2-factor authentication).