Bitcoin and other "crypto-currencies" rely on one-way hash functions like the SHA-256 algorithm to secure the blockchain where all the transactions are kept.
In this video, I explain some of the big-picture ideas behind this one function. Other cryptocurrencies use similar ideas.
Comments, suggestions, or errors? Let me know in the comments, and I'll fix them in an upcoming follow-up video (coming late July 2019)
---- Links ------
Wikipedia about SHA-256:
Current Bitcoin difficulty:
Big number calculator:
---- Credits ----
BitCoin & Money Photo:
Copy Link to Credit: (CC-BY 4.0) Cryprocurrency360.com
Bitcoin mining farm:
(CC-BY 2.0) Marko Ahtisaari -
Fourier Transform Graph:
(CC-BY 4.0) Jake
Wikipedia Hash Function Algorithm illustrations:
(CC-BY-SA)
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