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What is a blockchain & how does it work?

A Blockchain (or block chain) is a series of digital entries, which cannot be easily changed once they are created. It is commonly used in cryptocurrency. It is how digital transactions are recorded and verified. This is done by using several concepts from cryptography, including digital signatures and hash functions.

What are the basics of blockchain technology?

Step inside the basics of blockchain technology: how blocks contain data representing anything of value, how they’re chronologically connected in an immutable chain, and the differences between blockchain and cryptocurrencies such as Bitcoin.

Who invented blockchain?

Blockchain was invented by Stuart Haber and Scott Stornetta in 1991 as a means to assure the integrity of digital records. Haber and Stornetta launched the world's first commercial blockchain; Surety in 1995.

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