Mining Bitcoin with pencil and paper

Bitcoins are mined using a cryptographic algorithm called SHA-256. This algorithm is simple enough to be done with pencil and paper, as I show in this video. Not surprisingly, this is a thoroughly impractical way to mine. One round of the algorithm takes 16 minutes, 45 seconds which works out to a hash rate of 0.67 hashes per day.

[TRheraklesTR]

I bet this guy can run Crysis in his brain with max settings...

[klhmia]

No eraser on that pencil either... this guy lives life on the fuckin' edge.

[quasicroissant]

When you were having premarital sex, this guy mastered the blockchain

[NigelThornbery]

I don't understand any of this but I still watched all 7:51. It's like a dog trying to teach me Chinese while breathing underwater.

[maximilianlindner]

I didn't remotely understand what he is doing, but it looks cool.

[skdkskdk]

Is mining with pen and paper still profitable in 2017?

[koczaioandaniel]

Why did you posted this tutorial? Now the pencil and paper price will go crazy :(

[kurseng]

You'll spend the next 860, 000 years just to mine 1 bitcoin with this method.

[rufus]

And that ladies and gentlemen is why we use computers!

[TheGrandWhiteFox]

You mean I bought my 5 GPUs for nothing?

[tatusaalasti]

If I ever became a math teacher, I could secretly mine bitcoin on my students.

[f-starfighter]

Anybody else come here accidentally and just got super confused.

[smooooth_]

What if a bitcoin miner mined bitcoins with forced labor

[patrickaudley]

A great explanation of SHA-256 - recommended viewing for anyone interested in how Bitcoin works and other crypto buffs.

[Rudenbehr]

Anyone else just reading comments while he solves it?

[Neko-san]

I've always wondered if you could write a blockchain in paper and create bitcoin transactions without any eletronics. Thanks for the video mate.

[tomdiehl]

I feel better about the world knowing people like this guy exist. This vid made my day.

[y__h]

~1000 minutes = ~60000 secs for the full round of doubleSHA-256 of Bitcoin, or hashrate about 0.0000167 H/s, yeah.

[MitchandGarrettfilms]

Thanks for sharing this! I did this as a math project in high school in 2009 and nobody knew what bitcoin was thus it wasn't cool :P Also I did it at the pace of 0.77 hashes per day ;)

[shubhamrawat]

My brain after this video: "You're running out of space, please delete this latest memory cell before you process further."