The problem here is that internet

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Storing your own identity on your own device will become more common. Electronic identity continues to evolve. First, apps managed user identities locally. Then, single sign-on systems managed centralized repositories. Then, technologies like OAuth made it possible to manage user identities on the web and made web applications easier to use.

But corporations like Facebook, Google, and Twitter own netherlands whatsapp data identities and associated data. Storing your identities on your own devices gives control back to users. With blockchain, no single institution owns them, but everyone has access to them. Blockchain enables the portability of identities of people, things, and organizations.

In 2018, as blockchain technologies mature and become more widespread, storing your identity on your own devices will become increasingly attractive to businesses and government agencies.

There will be prunable blockchains. Today, the blockchain is immutable. Therefore, completed transactions cannot be deleted or archived. While immutability has certain advantages, it certainly creates difficulties in the long run. It is necessary to be able to prune chains and selectively archive transactions. This blockchain optimization will appear in 2018.