As I mentioned earlier, the blockchain is not just a distributed database; it includes advanced software and security techniques to create a network of nodes (peers) that are always in sync, where each node validates and verifies transactions and blocks redundantly in order to reach consensus, and it provides a platform to run decentralized applications. To achieve this, the blockchain or digital ledger technology is built upon a layered architecture. In most cases, this contains four or five layers, namely the data layer, network layer, consensus layer, incentive layer, and application layer.
What is the architecture behind the blockchain?
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