What is blockchain? Everything you need to know

Even if you only have a passing interest in cryptocurrencies, there are a couple of terms that you’re still likely to have come across.The first is ‘Bitcoin’. This is the oldest and best-known of the many hundreds of cryptocurrencies that now exist.With a market capitalisation of £690 billion (28 March 2022), it’s also the largest in terms of the value of digital ‘coins’ in circulation. You can find out more here about Bitcoin and its largest rivals.The second term is ‘blockchain’. This is an important component at the heart of nearly all cryptocurrencies.But what actually is blockchain? Here’s what you need to know.

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