Dear Steemians,
for those of you interested in crypto that want to learn more about how cryptocurrency works,what is centralization or decentralization and how Bitcoin was created you can join a course through https://www.coursera.org/learn/cryptocurrency.
You can also learn more about 'Proof Of Work', 'Proof of Stake' and a lot more details of how blockchain works.
A really interesting course. Enjoy...
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From @giannisaid