What is a block in a blockchain

What is a block in a blockchain?

A block of transactions that have been broadcast to the network referred to as a “block” on a blockchain.

This group of blocks referred to as the “chain.”

A fresh block of transactions joined to the end of an already existing chain once it has been approved by the network.

This series of blocks is a continuously expanding log of transactions that the network has deemed genuine.

We refer to this solitary, widely accepted transaction history as a “blockchain.”

At a specific chain height, there can only be one block. A chain of already-existing blocks can expanded in a number of ways.

These are sometimes referred to as “proofs,” such as “proof of work” (pow),

“proof of stake” (pos), and “proof of authority” (poa).

Variously complicated cryptographic techniques used in all of them.

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