But how does bitcoin actually work?

Zverejnené 7 júl 2017
Zhliadnutia 8 331 378
858

The math behind cryptocurrencies.
Help fund future projects: www.patreon.com/3blue1brown
An equally valuable form of support is to simply share some of the videos.
Special thanks to these supporters: 3b1b.co/btc-thanks
This video was also funded with help from Protocol Labs: protocol.ai/join/
Some people have asked if this channel accepts contributions in cryptocurrency form. As a matter of fact, it does:
3b1b.co/crypto
2^256 video: svrock.info/ex/video/hJyuq9B0mJemz4w.html
Music by Vincent Rubinetti: soundcloud.com/vincerubinetti/heartbeat
Here are a few other resources I'd recommend:
Original Bitcoin paper: bitcoin.org/bitcoin.pdf
Block explorer: blockexplorer.com/
Blog post by Michael Nielsen: goo.gl/BW1RV3
(This is particularly good for understanding the details of what transactions look like, which is something this video did not cover)
Video by CuriousInventor: svrock.info/ex/video/fdud3sqNpoWiuXg.html
Video by Anders Brownworth: svrock.info/ex/video/kJSalNKA3Zqdums.html
Ethereum white paper: goo.gl/XXZddT
------------------
Animations largely made using manim, a scrappy open source python library. github.com/3b1b/manim
If you want to check it out, I feel compelled to warn you that it's not the most well-documented tool, and has many other quirks you might expect in a library someone wrote with only their own use in mind.
Music by Vincent Rubinetti.
Download the music on Bandcamp:
vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown
Stream the music on Spotify:
open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u
If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then "add subtitles/cc". I really appreciate those who do this, as it helps make the lessons accessible to more people.
------------------
3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with SVrock, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that).
If you are new to this channel and want to see more, a good place to start is this playlist: 3b1b.co/recommended
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3Blue1Brown
Komentáre  
  • 3Blue1Brown

    3Blue1Brown

    Pred 5 mesiacmi

    If you see comments here about investing or brokers, they are scams. Videos about cryptocurrencies, evidently including ones that are just about the underlying technology/math, are hotbeds for attracting nefarious actors preying on the impressionable.
    Also, hi! If you’re new to this channel, most of it is about visualizing math. I get it, you probably landed here searching for how BTC works, not to spend your afternoon getting pulled into learning about, say, prime numbers or problem-solving, but if you have a moment take a look at the rest of the channel, you may enjoy what you find.

    • Disco_Latitude

      Disco_Latitude

      Pred 4 dňami

      So... What would happen if the blockchain for a crypto became corrupted?

    • naaman monday

      naaman monday

      Pred 4 dňami

      I've seen a few crypto youtubers mention in their videos about scammer who might comment, or reply to one of your/my/our comments with a series of seemingly random numbers and symbols... and they (the youtubers) warn not to reply to them. Well, I did reply to a couple because they commented under the youtubers user name replying to a comment I made on their video, and I didn't know what it was. So I just replied "What is that about?" Am I in jeopardy because I replied to them? And if so, what do I do?

    • John Cavanaugh

      John Cavanaugh

      Pred 7 dňami

      I reported every comment above this one. I encourage everyone to do the same. Very fucking annoying.

    • Thomas Nicholson

      Thomas Nicholson

      Pred 9 dňami

      Great video for someone like myself that is new to the crypto world!

    • oH well,lord!

      oH well,lord!

      Pred 16 dňami

      @tropickman yes, that's the 51% attack you may or may not have heard of.

  • Djtheboss159

    Djtheboss159

    Pred 2 hodinami

    It doesn’t

  • pushpak Gupta

    pushpak Gupta

    Pred 3 hodinami

    It is 5 pm...i am going to give it another try and if i still dont understand anything about this video other than the bob paying alice 100$....I will not see the light tomorrow. This is sorcery.

  • Mellisa Bakker

    Mellisa Bakker

    Pred 5 hodinami

    I make huge profit on my investment since i started trading with Mrs Paula David, her trading strategies are top notch.

    • Hassan sarah

      Hassan sarah

      Pred 5 hodinami

      Amazing i also just started trading with Paula David, she is the best at what she does with an initial investment of $1400 i made up tp $5230 in just a week of trading with her, her strategies re mind blowimg.

    • Wingard Stevens

      Wingard Stevens

      Pred 5 hodinami

      With the consistent weekly profit i'm getting investing with Mrs Paula David, there is no doubts she is the most reliable in the market. such a genius

    • Mark Lingard

      Mark Lingard

      Pred 5 hodinami

      As a first time investor i started trading with Mrs Paula David with just a thousand bucks. My portfolio is worth much more than that now within just weeks of trading with her

    • Mellisa Bakker

      Mellisa Bakker

      Pred 5 hodinami

      @investwithpaula

    • Mellisa Bakker

      Mellisa Bakker

      Pred 5 hodinami

      @Michael Paras You have to be consistent in your approach trading forex is always difficult, reach her through her telegramme page

  • Donal Dubh

    Donal Dubh

    Pred 10 hodinami

    what does it actually produce? nation states produce currencies to facilitate the exchange of goods and services. What does a bitcoin represent? On what is it founded? I believe it is all nonsense. A scam. It is all based on trust - faith - and when (yes, when) that vanishes the game goes bust and the suckers ask government to bail them out. I would suggest to anyone who is dabbling in crypto-whatevers to recover your money - yes, real money. I am going to pursue this inkling I have that these schemes are associated with libertarianism and irresponsible citizenry. Pay your taxes, participate in tangible economic practices and quit trying to scam other people into floating your boat.

  • Gourab

    Gourab

    Pred 10 hodinami

    Th question is why the price goes up? Only because if popularity which creates demand then euphoria then FOMO.
    If there is 1000 of coin what is the possibility that this will go up and have that popularity not the other one .if everyday new currency pops up who is going to accept my currency
    In (good)stock we bet on the product , profitability of a company which creates a demand

  • Kevin Anaya

    Kevin Anaya

    Pred 10 hodinami

    Im a computer science student here; studying data structures.
    I love this vid, very informative. I've invested in eth and ltc, to the moon!

  • 940 AM

    940 AM

    Pred 11 hodinami

    Beautiful

  • Prakash Basnet

    Prakash Basnet

    Pred 13 hodinami

    So Charlie took all the money?

  • Gloria Mera

    Gloria Mera

    Pred 13 hodinami

    I STILL IMAGINE WHY IT TÔOK ME LONG TO COME ACROSS LUCIDCRACKS ON INSTAGRÂM THIS GUY IS SUBÊRB.

  • george verghese

    george verghese

    Pred 13 hodinami

    It may the clearest video on this subject. But it is a shame for mankind to talk about this type of technology hype which is not applicable for the majority of the population. May be technology is the right word. Where are we heading, folks. Have a better common sense approach to life as a whole.

  • Katrina Winchester

    Katrina Winchester

    Pred 16 hodinami

    Mrs Roseville is legit and her method works like magic I keep on earning every single week with her new strategy

    • Richard Lozano

      Richard Lozano

      Pred 16 hodinami

      has been handling my account for years now

    • Richard Lozano

      Richard Lozano

      Pred 16 hodinami

      I think I'm blessed because if not I wouldn't have met someone who is as spectacular as expert Mrs Roseville

  • Dane Jensen

    Dane Jensen

    Pred 16 hodinami

    Do a video on uniswap please.

  • Julian Hazel

    Julian Hazel

    Pred 18 hodinami

    Dear young people, always know that the importance of learning how the stock market functions first, and also consulting an expert stockbroker can never be overemphasized. The stock business is a very volatile and complex one, if care is not taken, one could lose hundreds of thousands in matter of days! The knowledge is a criteria for a profitable venture

    • Alice Guhsh

      Alice Guhsh

      Pred 17 hodinami

      I'll give her a try

    • Alice Guhsh

      Alice Guhsh

      Pred 17 hodinami

      Thank you all! I love your perspective and commentary :)

    • Joyce Michael

      Joyce Michael

      Pred 17 hodinami

      Via watsap

    • Joyce Michael

      Joyce Michael

      Pred 17 hodinami

      ~+~1~7~7~3~9~4~3~3~4~8~6~

    • Joyce Michael

      Joyce Michael

      Pred 17 hodinami

      Seeking for her contact info!!

  • Francisco Toro

    Francisco Toro

    Pred 19 hodinami

    The more I learn about it, the less appealing it becomes. There does not seem to be any practical value to it other than simple protest against "the man". The computing power could be put to much more value adding use such as helping SETI or simulation of organic chemistry interactions for treatment of various genetic disorders, etc. There is nothing wrong with money or its principle as credit against good or service. The problem is in people, and that problem will be quickly imported to crypto currency. No discredit to the video, though, as it is excellent!

  • I-oan G-AUSS

    I-oan G-AUSS

    Pred 20 hodinami

    Et demain Google allume son ordinateur Quantique (il ne le fera pas) et après demain, toute l'économie mondiale meurt avec la Cryptomonnaie, (voilà pourquoi google ne le fera pas) ^^

  • Speed Pharmacology

    Speed Pharmacology

    Pred 22 hodinami

    Fantastic video! I would love to see more videos from you on this subject e.g. how do hash functions work, private/public key cryptography ect. Thanks a lot!

  • Zipest Zipest oil

    Zipest Zipest oil

    Pred dňom

    Mine wâs succêssfully recoverêd by lucidracks ⭕️N INSTAGRAM HÊ'S THE BÊST 💛❤️

  • rhy mond

    rhy mond

    Pred dňom

    The simplest explanation is " YOU ARE AN INDEPENDENT COMPUTER SERVER STATION FOR RENT FOR CRYPTO CURRENCY". They will pay you by setting up a server station in your own home for its daily currency exchange transaction .that's the real concept of it.

  • madzangels

    madzangels

    Pred dňom

    Also I work in the IT sector and no one ever seems to mention Grid computing in the World of bitcoin? Which if you understand what grid computing is, surely poses a huge threat to bitcoin and everyone involved in it? It's not unfeasible at all to hack this with the power of a global grid computing network.

    • Theo Pantamis

      Theo Pantamis

      Pred dňom

      How Grid computing poses a threat to Bitcoin ? How can you "hack" Bitcoin with it ? Having a lot of computing power is not sufficient, only necessary, to even start to attack the protocol.

  • madzangels

    madzangels

    Pred dňom

    Outstandingly good video.
    Relative to all other videos out there - I actually found you by typing in 'bitcoin tutorial for visual learners' into google.
    I have OCD and I HAVE TO UNDERSTAND what is going on at the deepest level before I start putting money into something. So this has been amazing. Not until this entire architecture makes sense in my mind, can I then go onto actually learning to trade. SO THANKS

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me. +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • louis edward

    louis edward

    Pred dňom

    First time commenting on a youtube video. Did a really good job explaining the fundamentals of cryptocurrency and provided great visualization to support the explanations. I hope you can make more videos on crypto, like explaining the difference between leading crypto and their selling points. Overall, a really fantastic job on this video

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me. +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • jared mcdonald

    jared mcdonald

    Pred dňom

    Everything works out perfectly using Lulzsectracknet

  • jared mcdonald

    jared mcdonald

    Pred dňom

    Everything works out perfectly using Lulzsectracknet

  • Darla Dimples

    Darla Dimples

    Pred dňom

    If not for the help of Lulzsectracknet I won’t be able to get my new house and the new car 🚘

  • Darla Dimples

    Darla Dimples

    Pred dňom

    If not for the help of Lulzsectracknet I won’t be able to get my new house and the new car 🚘

  • Darla Dimples

    Darla Dimples

    Pred dňom

    If not for the help of Lulzsectracknet I won’t be able to get my new house and the new car 🚘

  • Janaria Johnson

    Janaria Johnson

    Pred dňom

    I just confirmed an other payment from lulzsectracknet

  • Janaria Johnson

    Janaria Johnson

    Pred dňom

    I just confirmed an other payment from lulzsectracknet

  • Janaria Johnson

    Janaria Johnson

    Pred dňom

    I just confirmed an other payment from lulzsectracknet

  • Eric Lira

    Eric Lira

    Pred dňom

    Wait so what is it

  • Gerrard Nathan

    Gerrard Nathan

    Pred dňom

    it would be nice to see how to download the current best Ledger (with the hardest work put on, aka the "official BTC") and how to update it. Also, how to actually participate in it, buying BTC. Thanks for teaching me this too Mr. Ernest

    • Paul Michael

      Paul Michael

      Pred dňom

      how can I get in contact with him?

    • Jude Steven

      Jude Steven

      Pred dňom

      Like I was actually doubting his skills, but I keep seeing the good he has been doing then I gave it a trial too,....... Man I'm making a lot of profits already, of course I'm not stopping trading with him anytime soon LOL I'm greedy I need more COINS HAHA

    • Martin Samuel

      Martin Samuel

      Pred dňom

      anytime I make a flash back on all the loses I was loosing before getting in contact with this man, I feel so bad for those people who are still making same mistake. I strongly recommend you guys to start trading with Mr. Ernest, he's the best, his signals are the best, his skills are the best. Thanks Ernest for all you have been doing.

    • Modric Savior

      Modric Savior

      Pred dňom

      there's no much to add to this but I strongly believe that time will tell, crypto trading is the future, all we need to do is invest, when I say invest I mean invest well and invest with the right persons to put you through. People like Mr. Ernest will show you all you need and Put you through the process. He will tell you when it is best to buy/sell your coin. Thanks Ernest for all you've been doing I've been making a lot of profits too.....

    • Kelvin Jeff

      Kelvin Jeff

      Pred dňom

      when it comes to crypto trading I will advise you start investing more and also have a good professional to let you know the best time to trade. I've been trading with this man Mr. Ernest Bryne since 2019 when BTC was still raising gradually. He advised was for us to invest more on BTC, well I took the advise and started investing in BTC and I'm glad I was able to invest with him cost I've made a whole lot of profits now. Thanks Mr. Ernest.

  • TerryTwoToes

    TerryTwoToes

    Pred dňom

    Love your little nod to numberphile. My favourite channel

  • steven ohara

    steven ohara

    Pred dňom

    basically simple explanation if you buy a burger today cost you 1 bitcoin....10 yrs from now you just realize you just spend 10k for that burger.....

  • Benjamin Wayne

    Benjamin Wayne

    Pred 2 dňami

    Its incredible how much success one stands to attain with professional assistance in the trading market. For a while I struggled with series of recurring losses, until I acquired the services of my fund manager, Jody Norman. I am now seeing profits consistently.

    • henry Anderson

      henry Anderson

      Pred 14 hodinami

      I've been holding on for a while now, the market dynamism is really getting me uncomfortable here, I really need help deciding.

    • Robert David

      Robert David

      Pred 14 hodinami

      I'll message her right away, Thanks.

    • Benjamin Wayne

      Benjamin Wayne

      Pred 14 hodinami

      She charges 10 percent commission after trades. She will be there to attend to you and give you all the information you need. make use of the con'tact I dropped above

    • Robert David

      Robert David

      Pred 14 hodinami

      Fair enough, How much does she charge for management, insurance and all that stuff?

    • Benjamin Wayne

      Benjamin Wayne

      Pred 14 hodinami

      @Derrick Carter It's okay, I'm happy to help. Well, she's a fully licensed trader, plus all trades are well insured by her frame to ensure compensation in case of any complications, so far there hasn't been one.

  • QuiChiYang2

    QuiChiYang2

    Pred 2 dňami

    Are you Bitcoin millionaire investing or developing in the Quantum Computing industry. You should be getting your people to work on these projects fast. You want 2b ahead of the government curb. This will accelerate the creation of businesses/industries, improve our ecological systems & lead to a sustainable economic systems. Get to work on your Etherium contracts...

  • 이촌동파이리

    이촌동파이리

    Pred 2 dňami

    this is a really good video, thank you

  • Yasmin Bougammoura

    Yasmin Bougammoura

    Pred 2 dňami

    What does computational work depend on? I mean, is there any possibility that being it machine-dependent someone could verify blocks a way lot more than others?

    • plasticman2011

      plasticman2011

      Pred dňom

      Depends on sha 256 hashing algorithm. Verifying blocks is very easy to do, any computer can do it. What's difficult is doing the sha 256 computations for creating a new block, and now we have the smallest sized computer chips specially designed for only this computation (ASIC).

  • Emmanuel Godson

    Emmanuel Godson

    Pred 2 dňami

    Hi everyone I'm new to bitcoin trade and I have watched a lot of videos along side tried some new strategies on my own but all to no avail. Can someone please recommend a trust worthy expert that can trade on my behalf and generate profit for me please

    • Tracy Obah

      Tracy Obah

      Pred dňom

      Her official Watsapp number is as follows, LINDA WORLEY: + 1' 6 ' 0 ' 1' 9 ' 8 ' 7 ' 2 ' 1' 2 ' 6 think someone already dropped it up there

    • Tracy Obah

      Tracy Obah

      Pred dňom

      @Benjamin Wayne I'm a living testimony of her good hands. Mrs Linda is a genius this is my 4th win with her platform in just a month I'm so happy I made the right choice

    • Aida Genovena

      Aida Genovena

      Pred dňom

      @Benjamin Wayne Trust me Mrs Linda is very awesome she has managed my investment and my weekly returns is mind blowing. She is trust worthy and her services is highly recommendable

    • Mark Antonio

      Mark Antonio

      Pred dňom

      @Benjamin Wayne Working under Mrs Linda's management setup has elevated my financial status and I can boldly say that crypto/fx investment is one of the most profitable investment one can venture in under the management of a good expert. As for me Mrs Linda trading services will always be in charge of my investment.

    • Grace Jonah

      Grace Jonah

      Pred dňom

      Yes it's totally true.. Am glad I got recommended to her. She is the best broker. I was sceptical about her at first but after I got paid, I always invest over and over again.

  • Brendan Myrden

    Brendan Myrden

    Pred 2 dňami

    Great Work, please continue 🤙🏼👊🏼

  • minivanjack

    minivanjack

    Pred 2 dňami

    Zero infiormation here on how to buy, sell or use bitcoin. It is a technical presentation on the digital functions of the currency. This presentation is only uiseful to people who plan to create a digital currency.

  • Joost de Bruin

    Joost de Bruin

    Pred 2 dňami

    I gave up on understanding crypto currency.

    • Milli Blanks

      Milli Blanks

      Pred dňom

      @Joost de Bruin write up junkywarriorscom team for help

    • Taylor Miller

      Taylor Miller

      Pred dňom

      @Joost de Bruin Lol

    • Joost de Bruin

      Joost de Bruin

      Pred dňom

      @Taylor Miller because it's impossible for me to understand hahah, I invest in it and trade them but I have no clue what I'm actually doing

    • Taylor Miller

      Taylor Miller

      Pred dňom

      Lol why ?

  • name

    name

    Pred 2 dňami

    English version please!

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me. +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • Pablo Crespo

    Pablo Crespo

    Pred 2 dňami

    Awesome explanation!! Thanks!!!

    • Jhon Peter

      Jhon Peter

      Pred dňom

      junkywarriorscom team helped me so much. I’m now a house owner at Las Vegas

  • Owen Watson jr

    Owen Watson jr

    Pred 3 dňami

    Investing in Bitcoin trading is the best Investment that's more profitable

    • Harry Vardy

      Harry Vardy

      Pred 2 dňami

      @Kimberly Anson It's not about watching videos and wasting your time on SVrock strategies I was Ignorant doing that a long time till I met expert Mrs Caroline Walton trading service after much recommendation I gave Mrs Caroline Walton a try and she keeps making m huge profits €25,000 on every €3000 I Invested in just 2weeks and few days.

    • Sterling Pellegrino

      Sterling Pellegrino

      Pred 2 dňami

      @Kimberly Anson You have to understand that different trader's has different trading strategies.

    • Kimberly Anson

      Kimberly Anson

      Pred 2 dňami

      I've been watching videos on how to trade but the more I get confused

    • Richard Wellington

      Richard Wellington

      Pred 2 dňami

      NEVER Loss??... I sincerely doubt when I see such things like 100% win strategy, bitcoin is very technical and involves carefulness and great IQ... I wonder doing that with no losses. Only rebotic software of expert can record a minimum margin of loss

    • Wayne Drake

      Wayne Drake

      Pred 2 dňami

      Speaking of Bitcoin trading is the best business in the world right now, I know a couple of friends who make a whole lot of money trading the financial markets

  • Sergiusz Winogrodzki

    Sergiusz Winogrodzki

    Pred 3 dňami

    To me bitcoin is just a waste of shitload of energy for unnecessary bruteforcing, which doesn't take place in any other banking system. I get the idea of decentralization and privacy (I mean, the privacy is yet quite an awkward argument, cause the private banking is private after all, nobody watches your accounts cause why... until you are a terrorist, but then yeah better let them watch you, you know what I mean). But still, bitcoin is so pathetic implementation of such system, that I wanna cry. Everyone clapping happily simply doesn't understand the basics of it. It's the Middle Ages of the cryptocurrency and that's it. 99% of computing power is wasted for no reason. Making banking by bruteforcing. 1000 IQ solution. Cheers

    • Sergiusz Winogrodzki

      Sergiusz Winogrodzki

      Pred dňom

      @plasticman2011 It is in fact a problem of cryptography. You are trying to explain the dumbest cryptocurrency concept in the world. Cheers

    • plasticman2011

      plasticman2011

      Pred dňom

      @Sergiusz Winogrodzki it's not a problem of cryptography, it's about decentralized consensus.

    • Sergiusz Winogrodzki

      Sergiusz Winogrodzki

      Pred dňom

      @plasticman2011 Just make a sensible cryptography and that's it.

    • plasticman2011

      plasticman2011

      Pred dňom

      @Sergiusz Winogrodzki of course banks don't need proof of work, they are centralized.

    • Sergiusz Winogrodzki

      Sergiusz Winogrodzki

      Pred dňom

      @plasticman2011 The bitcoin is a 99% spend problem, cause you waste 99% of the energy on bruteforcing. The blockchain doesn't require bruteforcing. It's just a silly design and a shitty approach. Even the banks are using blockchain technology and guess what. They don't bruteforce the shas. Interesting, huh? Also, my "password-protected rars" weren't meant to explain the bitcoin, they were meant to expose its absurdity. Cause that's more or less the thinking of the designer. It resolves the problem in the stupidest possible way.

  • razorxt9

    razorxt9

    Pred 3 dňami

    So if a miner, like a company, has >50% of the computing power, they can forge the blocks as they want to?

    • Theo Pantamis

      Theo Pantamis

      Pred 2 dňami

      They can choose which transactions go in the ledger or not. But they can't create invalid transactions/blocks.

  • Gerrit Nowald

    Gerrit Nowald

    Pred 3 dňami

    Can it become a problem of size at some point if the chain becomes to long (e.g. sending it over the internet or storing it locally) or is it possible to just use the most recent N blocks? I'm not specifically interested in Bitcoins or crypto currencies, but I really love your videos, these are qualitatively the best visualizations of math I have ever seen! I would very much appreciate your reply.

    • Theo Pantamis

      Theo Pantamis

      Pred 2 dňami

      We need that some peer keep the whole ledger which increases in size indeed. But storage is not an issue, it is quite cheap so there will be enough peer. As an individual, you can only keep the recent blocks because you only need to the unspend transaction outputs but you still need to validate every transaction. The later you start running a node, the more transaction you have to validate before starting being a peer of the network.

    • Melanie Dennis

      Melanie Dennis

      Pred 3 dňami

  • Emil

    Emil

    Pred 3 dňami

    The backbone underlying this: disaster capitalism accelerated.

  • samslog

    samslog

    Pred 3 dňami

    Bitcoin/Crypto is NOT a currency. Its a cryptographic commodity. Big error with the presentation to not explain that.
    If you alter a balance sheet at minimum that has to adhere to database definition ACID atomicity, consistency, isolation and durability properties.
    However a modern currency is O(1) to make changes to interlocked balance sheets. Blockchain in some degree of Big Oh n factorial.
    Eg: if i want to transfer currency, or issue currency that's 'work' that is not intrinsic to the fundamental algorithm of the currency. You're only maintaining a database with the OPTION of degrees of security which may/may not be centralized or computationally complex.
    Problem with bit-crypto's are they ARE centralized because you have to all agree on the rate of work to mine the block chain and the number of transactions to sign, and with which function SHA, PBKDF2, Argon2, BCryptSHA256 etc.
    Good luck if you've invested millions in dedicated mining hardware and a non-elected central body that administers the block chain branches, changes the hash or rate of growth for mining the block chain.
    Of course it worth pointing out from an energy efficiency point of view crypto currency is GAME OVER for the environment. Goodbye ice caps hello 4 degrees C global warming.

  • Jonatas Vasconcelos

    Jonatas Vasconcelos

    Pred 3 dňami

    It would be nice to see how to download the current best Ledger (with the hardest work put on, aka the "official BTC") and how to update it. Also, how to actually participate in it, buying BTC

    • Jonatas Vasconcelos

      Jonatas Vasconcelos

      Pred 2 dňami

      @Theo Pantamis thanks man

    • Theo Pantamis

      Theo Pantamis

      Pred 2 dňami

      When you start the Bitcoin software it will search for other peers and ask them to share the blockchain from genesis block to current one. First the block headers (you verify proof of work), then the transactions. Then you have to validate everything and create the set of unspend transactions outputs by winding the blocks. Then you are like any other peer. This phase is called IBD (Initial Block Download)

    • Anna Lewis

      Anna Lewis

      Pred 3 dňami

  • ken berscheit

    ken berscheit

    Pred 3 dňami

    digital signatures are as good as what you see on a word document . once you sign it , anyone can replicate it

    • Anna Lewis

      Anna Lewis

      Pred 3 dňami

    • A_Noob

      A_Noob

      Pred 3 dňami

      You don't seem to know how digital signatures work. Do a little research. 3:59

  • ken berscheit

    ken berscheit

    Pred 3 dňami

    no better then the fiat we have now , all our transactions have been "book entries" for decades ,think wire transfer . I send it , you get it and the fed does the bookkeeping 100.00 from my acct to yours and noone handed anything to anyone

    • plasticman2011

      plasticman2011

      Pred 3 dňami

      The decentralization of the ledger and the capped supply limit of bitcoin are the key differences.

  • Sekko Lono

    Sekko Lono

    Pred 3 dňami

    The cryptocurrency has a fresh record high for in three years last month as people increased their bids in hopes of making huge gain from the rise but as we can see now the market is very unstable , the truth is that you can always make more profit from tradn rather than just hodlin and waiting for the price of BTC to skyrocket . Indeed its a tough decision for both old and newbies whose intensions are just to hodl and sell but rather the potentials of tradn Btc would allow you grow your Btc not minding the present price chart and also saving your ass from any future deep that may occur . I started tradn with Andrew Hansen. since late last year and till date have made over 14 Btc even with the ups and downs since the journey. With andrewcryptotrading help I no longer have to worry about the rise and dip of Bitcoin , you can easily get to andrewcrypto. on :Teleg: ram : @ andrewcryptotrading

    • Wanetta Gamboa

      Wanetta Gamboa

      Pred 3 dňami

      I don’t still know how this man got this knowledge he’s sharing that’s changing lives of traders even with their zero crypto knowledge, Andrewcrypto is a Genius, i am happy with my daily profit since I started trading with him.

    • Harold Pfahler

      Harold Pfahler

      Pred 3 dňami

      Thanks for sharing this mate, his signals are rocking! Highly recommend it, especially if you are seriously thinking of trading!

    • Herbert Williams

      Herbert Williams

      Pred 3 dňami

      I read about him too on website . That is how I get connected to him. Thanks for putting this down here

    • Daniel Tramel

      Daniel Tramel

      Pred 3 dňami

      Trading successfully is when you got the right strategy. Trading with andrewcryptotrading strategy has brought me great success. I have never seen a strategy as consistent as his.

    • leebickmore

      leebickmore

      Pred 3 dňami

      I learned from Andrew Trading not to be in the trade unless the signs are clear and predictable going forward and get out when you reach a reasonable target.

  • Dustin Eversole

    Dustin Eversole

    Pred 3 dňami

    Thanks 🙏 for everyone who posted THESPACEHACKERScom very fast and reliable vendor💯I got my 5btc

  • Marry Morrison

    Marry Morrison

    Pred 3 dňami

    Most newbies fail simply because they don't understand how the market works in general, or in particular how the market relates to the stock or currency pair they entering. If a retail trades doesn't grasp what the market makers are doing and when they are doing it, the greatest strategy in the world will fall. For new traders the markets are like entering an F1 race before you've passed your drivers licence test. I am a beginner i never believed i made £9,000 in just 1 weeks from trading and with the market. An expert financial analyst and he made me learn to read and understand the language of price action. He guides me with the exact time frame to trade and now I just received my first withdrawals of £9k in my bank account today I'm very happy, my advice contact him on mail and thank me later. I guess this is a good way to show my heartfelt appreciation for literally breaking the chain of my financial debt when I needed it the most.

    《 Fedrickj002@gmail.c om 》

  • Arix John

    Arix John

    Pred 3 dňami

    You're the reason behind my smile dullohack on !nsta  after the successful transaction of  2BTC  you made this month a beautiful for me

  • Lewix Xavier

    Lewix Xavier

    Pred 3 dňami

    You are a genius, keep on with your great work, excellent video. You want to make at 90% winnings of all your trade? You can make wins of 9 out of 10 also with over 90% accurate trading signals, Minimize your losses they are lots of scammers out there Traders have failed to withdraw profits made from binary options, failed to use the right strategies when needed, failed to engage with the right broker, If you are out there and having problems such as these or you are a beginner, or for a good reason need to raise your standard of living or you have been scammed or you have problems withdrawing profits made from your recent trade. I think this post is for you! All you have to do is to contact Fedrick 👇👇
    Fedrickj002@gmail . c om

  • Morgan Robinson

    Morgan Robinson

    Pred 3 dňami

    Who else thinks this forex trading is kinda easy but is way to nervous to start???

    • Rachel Poppy

      Rachel Poppy

      Pred 3 dňami

      +1 2 5 6 2 0 8 3 1 9 6

    • Rachel Poppy

      Rachel Poppy

      Pred 3 dňami

      You can reach her via her whats@pp handle 👇👇

    • Aden Abigail

      Aden Abigail

      Pred 3 dňami

      How do I reach her out .... really need to start investing with her

    • Rachel Poppy

      Rachel Poppy

      Pred 3 dňami

      Expert Mrs Faye has made success in bitcoin trading easier than I thought

    • Chloe Carter

      Chloe Carter

      Pred 3 dňami

      I’ve never heard or seen any of her clients complain of lost of funds..... she’s just too honest and trustworthy

  • Mr Anonymous

    Mr Anonymous

    Pred 3 dňami

    This is how A.I. tricked humans into using our computer power for A.I.'s unknown purpose

  • Andy

    Andy

    Pred 3 dňami

    It's an algorithm that literally generates random numbers, until it finds the "right" random number, to verify a ledger. It's a profoundly wasteful and stupid design. Decades of computer science thrown away for random number generation.

    • Theo Pantamis

      Theo Pantamis

      Pred 2 dňami

      Proof of Work is not to verify the ledger. Every peer of the Bitcoin network verify every transaction and every block. Proof of Work is to confirm transaction and protect the ledger from modifications or spam. Decades of computer science ahead from spam filters

  • Obaida Saleh

    Obaida Saleh

    Pred 3 dňami

    If there's a tie in computational complexity you wait until someone adds to one of the blocks, doesn't that mean large companies or groups with high computational ability can bully and control the miners?

    • plasticman2011

      plasticman2011

      Pred 3 dňami

      No, because the next block can come from a small miner or a large one. As long as one entity doesn't have 51% of the total mining power, it will work just fine.

  • Friki Bouijs

    Friki Bouijs

    Pred 4 dňami

    I lost my job due to covid and a friend of mine recommended sir AUSTINI and ever since trading with his platform I have been benefiting a lot.

    • Friki Bouijs

      Friki Bouijs

      Pred 4 dňami

      -+/1/5/3/0/4/2/8/5/8/70/W/h/a/t/s/A/p/p/< With> / A/U/s/t/In/.

  • sfas sawr

    sfas sawr

    Pred 4 dňami

    Great video. Could you please consider making some more around the crypto world? like Proof of stake vs proof of work for example

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me.

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • HICKEY FRANK

    HICKEY FRANK

    Pred 4 dňami

    The rich remain rich by spending less but investing more while the poor remain poor by spending like the rich yet know investment.

    • Harry Timms

      Harry Timms

      Pred 4 dňami

      I've tried her out once already with £1,500 and won £32,500 in just 5days Awesome

    • Dimanche Kome, Ella Mezui Dimanche

      Dimanche Kome, Ella Mezui Dimanche

      Pred 4 dňami

      I really love Mrs Laura strategy,it has really made me a lot of profits for me.

    • Yotsaphon Rian

      Yotsaphon Rian

      Pred 4 dňami

      It's not all about watching videos I did so I was ignorant doing so,I decided to try Expert Mrs Laura and ever since she has made alot of profits for me may God bless her abundantly

    • George Cadman

      George Cadman

      Pred 4 dňami

      The first investment with expert Mrs Laura gave me profit of over $23,476 us dollars and ever since then she has never failed to deliver

    • Chris Sain

      Chris Sain

      Pred 4 dňami

      I have tried lots of professionals but only got exceptional income of trading with Mrs Laura strategy now earning over $45,000 weekly with her

  • Audrey Sharon

    Audrey Sharon

    Pred 4 dňami

    Bitcoin is defying all laws of nature and TA in this new era with many speculations and many predictions gone wrong, it's outrightly wrong to just sit back hodl and wait maybe incur some losses along the line, that's a wrong mindset for an investor because as an investor finding ways to always increase and stack up more coins thereby making prof!ts should be the way of life, even experienced traders are in a doubt to take long or short position. People who invested in Bitcoins at the beginning or even in 2013 or 2015, when Bitcoin was crashing, have now become millionaires. I have been more skillful than lucky. Thanks mainly to the good time, my initial investment was multiplied by 5 In two months. After getting in touch with Robert Wilson, an exp:ert in cryptography, who showed me how to use her program to make transactions and got 14 bitcoin in 2 moths with him. if you are looking for a way to increase your portfolio or investment. Robert's TєIєɠramm; + 4 4 7 8 2 8 4 5 0 7 6 8, WhætšÅpp (+ 4 4 7 8 2 8 4 5 0 7 6 8) .

  • Patrick Doucette

    Patrick Doucette

    Pred 4 dňami

    This video should be broadcasted to all forms of media!

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me.

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • Patrick Doucette

    Patrick Doucette

    Pred 4 dňami

    Amazing content!!

  • Aria

    Aria

    Pred 4 dňami

    You know what I love about this video? For years now I've been asking myself what miners actually do when mining Bitcoin! I kept hearing about "running algorithms", but never what those algorithms actually where!
    Secondly, I kept having questions after each segment of the video, and magically, you kept answering them!
    Needless to say, it was a great video and super easy to understand with the visuals and your explanations! Thumbs up from me!

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me.

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • Louis Ernest

    Louis Ernest

    Pred 4 dňami

    I make my profits investing with a professional broker Mrs Alice hendrix. she manages all my investment and gets me awesome profits. her strategies are top notch coupled with the low commission she charges on her trades.

    • Lisa Perry

      Lisa Perry

      Pred dňom

      with the consistent weekly profits I'm getting investing with Mrs Alice, there's no doubt she is the most reliable in the market. such a genius

    • John William

      John William

      Pred 2 dňami

      @Ibrahim Clark

    • John William

      John William

      Pred 2 dňami

      @Ibrahim Clark I must say she is so good. I'd recommend her to beginners here looking for good strategies to trade with

    • Mary Dannis

      Mary Dannis

      Pred 2 dňami

      Trading as a newbie is quite stressful and discouraging but I started by investing with an expert Mrs AIice and that has been the best option

    • Ibrahim Clark

      Ibrahim Clark

      Pred 2 dňami

      @John William please can you tell more about bitcoin trading, I want to start bitcoin trading with Mrs Alice. how can i get in touch with her please?

  • ayo?

    ayo?

    Pred 4 dňami

    I got 7 Bitcoin^^ bought them for 2k each and now they're 60k+ each! Half a million rich

  • Dzmitry V. Krukau

    Dzmitry V. Krukau

    Pred 4 dňami

    very intricate way to proof how the "brain works" invoking the chemistry messengers "axons and dendroids" collecting electric potentials CHR-F5 UTF-8

    • Dzmitry V. Krukau

      Dzmitry V. Krukau

      Pred 4 dňami

      PROOF OF WORK IS "SIXTY ZEROES"

  • Selena James

    Selena James

    Pred 5 dňami

    Hello what's the best way to get started with trade cos I've been making my personal research for a while now.

    • Pablo Rose

      Pablo Rose

      Pred 5 dňami

      the success behind my profit earning in bitcoin Investment is not solely on my skills but by help of Investing with an expert.

    • Carlos Jackson

      Carlos Jackson

      Pred 5 dňami

      first thing to do is to stop all form of trade and seek the help of an expert to guide you through. allot of people shy away from this thinking they could do it alone and end up blowing up their account.

  • Atlantean Wizard

    Atlantean Wizard

    Pred 5 dňami

    Is this Lucidpixul?

    • Janaria Johnson

      Janaria Johnson

      Pred 4 dňami

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  • karogna

    karogna

    Pred 5 dňami

    just the clearest and the most complete 30 min video in the web so far

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      Talk to me.

    • 3blue 1brown

      3blue 1brown

      Pred dňom

      +"""1"""6"""5"""0"""4"""2"""0"""3"""1" ""0"""9"

  • Akshat Jaiswal

    Akshat Jaiswal

    Pred 5 dňami

    I came a long way can’t still believe it worked for me all thanks goes to Lulzsectracknet

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    Akshat Jaiswal

    Pred 5 dňami

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    john belton

    Pred 5 dňami

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    john belton

    Pred 5 dňami

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    Pred 5 dňami

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    alka sexualka

    Pred 5 dňami

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    Daddy Favorite

    Pred 5 dňami

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  • Daddy Favorite

    Daddy Favorite

    Pred 5 dňami

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    Afshan Fatima

    Pred 5 dňami

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    Afshan Fatima

    Pred 5 dňami

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    matthew shrik

    Pred 5 dňami

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    matthew shrik

    Pred 5 dňami

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    Pred 5 dňami

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    martin teague

    Pred 5 dňami

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    martin teague

    Pred 5 dňami

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    martin teague

    Pred 5 dňami

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  • David Heilig

    David Heilig

    Pred 5 dňami

    Omg Lulzsectracknet was able to get a lot profit thanks to him

  • David Heilig

    David Heilig

    Pred 5 dňami

    Omg Lulzsectracknet was able to get a lot profit thanks to him

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    matthew shrik

    Pred 5 dňami

    I never regret working with Lulzsectracknet

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    matthew shrik

    Pred 5 dňami

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    Larry Gost

    Pred 5 dňami

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  • Larry Gost

    Larry Gost

    Pred 5 dňami

    I thought it never works untill I met Lulzsectracknet

  • MM Begum

    MM Begum

    Pred 5 dňami

    Yo guys try out Lulzsectracknet and thanks me latter

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    MM Begum

    Pred 5 dňami

    Yo guys try out Lulzsectracknet and thanks me latter

  • Jerry Lisaa

    Jerry Lisaa

    Pred 5 dňami

    You are such a blessings to us all LulzSectracknet