The unsolved math problem which could be worth a billion dollars.
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- Опубліковано 10 лип 2019
- No one on Earth knows how to reverse one of the most popular computer algorithms. Yet it's really easy to compute one-way. You could make billions of dollars if you solved this mathematics problem, which is computed quintillions of times per second in the race for mining Bitcoin. SHA256 has some amazing properties, is useful for digital signatures, cryptography, authentication, and is a central part of the Bitcoin protocol.
(**** UPDATE 2021: After two years, I've finally posted a follow-up video, an introduction to Bitcoin. You can find it here: • Intro to Bitcoin - Is ... )
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.
Take a look at some of my other videos: • Matthew Weathers Teaching
--- Links -----
Wikipedia about SHA-256:
en.wikipedia.org/wiki/SHA-2
Current Bitcoin difficulty:
www.coinwarz.com/difficulty-c...
Big number calculator:
defuse.ca/big-number-calculat...
--- Credits ---
BitCoin & Money Photo:
Copy Link to Credit: (CC-BY 4.0) Cryprocurrency360.com
www.flickr.com/photos/bitcoin...
Bitcoin mining farm:
(CC-BY 2.0) Marko Ahtisaari - www.flickr.com/photos/moia/
Fourier Transform Graph:
(CC-BY 4.0) Jake
pgfplots.net/tikz/examples/aut...
Wikipedia Hash Function Algorithm illustrations:
en.wikipedia.org/wiki/SHA-2
(CC-BY-SA)
He's so fresh and tired at the same time
Why do I feel like I have to submit my essay to him till tomorrow?
I will always watch these videos just in case for some odd reason I immediately know the answer.
7 billion people on the planet and only 1.8 million of us have seen that number 😎
1:57
me: “hmm maybe i could be the one to solve it” me after seeing the problem: “yeah, i don’t think i want to”
Found this video on my recommendations, I have never seen such a simple and clear explanation on SHA-256 in such a short amount of time. I even learnt something new from this! Wish I found you sooner (Would have saved me a couple hours :'D), you're a blessing in disguise, thank you so much for making learning easier🙏🏻
this guy seems like he hasn't slept in a month but got 12 hours last night
Me clicking a video that has “MATH” in its title must be the proudest moment of my life.
“Which is worth somewhere between $12 and $12,000,000” a nice nod to the volatility of Bitcoin😂
One of the most interesting and surprisingly inspiring videos I've seen in a while. Thank you, sir!
This video is from 2 years ago and after all the information about the SHA algorithm, the last part is actually the best part.
1:57
Professor, You're a blessing in this world of wild pseudo-intellectual youtubers. I just found you, thanks for existing.
3:15
Felt smart watching this, thanks Matthew!
Never seen this guy before, but he has the makings of a national treasure, the likes of Bob Ross and Mr. Rogers.
Feel like if you found a way to crack this algorithm it would be worth a lot more than a billion dollars
I watched, I listened, I studied the images........I still haven’t a clue what this is about!
I loved this video, this guy wrote an amazing text before recording. Going to see if he has available books right now.