blockchain

In essence, blockchain is simply a way to structure data. It is a digitally distributed ledger (or list of records) which is almost immutable, append-only and borderless. The records consist of blocks which are linked using cryptography. All data on a blockchain is digitized, which eliminates the need for paper and manual documentation (Deloitte, 2017). In the context of 121, this means that instead of relying on an analogue, hard-copy identity like a passport, one can rely on digital identity.

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