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1 Answer
- .Lv 711 months ago
You can read about it here https://en.wikipedia.org/wiki/Blockchain
Move your question to Computers & Internet as it's currently in Yahoo Products>Yahoo Mail>Abuse and Spam and not applicable to this subcategory (and thus decreases your chances of getting many useful answers).
You can move your question by clicking Edit (pencil icon for mobile)>Edit category just beneath your question, then selecting the category in which it is better suited.