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For example you might lookup a user's profile based upon their DID, their Ethereum account, or their Twitter handle; or you could lookup a user's Filecoin account based on their Polkadot account. We are dealing with The Graph on indexing these identity structures which will open numerous new chances in this realm.
If you also need a method of keeping and handling user data, you have 3 primary choices. Use the IDX library to straight save documents on the Ceramic Network and include referrals to those documents in the user's index. For visit now , no additional software application is needed; it works out of package with IDX.Store data in alternative data storage systems such as Filecoin, IPFS, Sia, Arweave, Fabric, Orbit, DB, Secure Data Stores, or Ethereum agreements and use IDX to include recommendations to this data in your user's index.
This is true despite where the information lives (servers or decentralized networks) or which application first produced the information. The identity index contains mappings to numerous information sources, Share information across applications and silos, As described above, the crucial element of IDX that de-silos info, promotes interoperability, and enables user control is the identity index.