For example you could lookup a user's profile based upon their DID, their Ethereum account, or their Twitter manage; or you could lookup a user's Filecoin account based upon their Polkadot account. We are dealing with The Graph on indexing these identity structures which will open up lots of brand-new chances in this realm.
If you likewise need a method of storing and managing user data, you have 3 primary options. Use check it out to directly keep documents on the Ceramic Network and include referrals to those files in the user's index. For this choice, no extra software application is required; it works out of the box with IDX.Store information in alternative information storage systems such as Filecoin, IPFS, Sia, Arweave, Fabric, Orbit, DB, Secure Data Stores, or Ethereum contracts and utilize IDX to include recommendations to this information in your user's index.
This is real no matter where the data lives (servers or decentralized networks) or which application first developed the data. The identity index includes mappings to various data sources, Share data throughout applications and silos, As described above, the key element of IDX that de-silos info, promotes interoperability, and allows user control is the identity index.