But how does bitcoin actually work?

Publicerades den 7 jul 2017
The math behind cryptocurrencies.
Home page: www.3blue1brown.com/
Brought to you by you: 3b1b.co/btc-thanks
And by 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: senewss.info/slow/iJuufdBxa8TXpro/video
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: senewss.info/slow/gdqdsMqKebLTkKY/video
Video by Anders Brownworth: senewss.info/slow/lJOaZtJ9sMfOkZk/video
Ethereum white paper: goo.gl/XXZddT
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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.
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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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Kommentarer

  • 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.

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  • Very nice, thanks

  • Expert mrs Jane is legit and her method works like magic I keep on earning every single week with her new strategy

    • Yes but do you know I have been paid out today

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  • Bitcoin's price action has been fluctuation throughout the past few days and weeks , with bulls and bears both reaching a clear impasse the aggregated cryptocurrency market has been following in Bitcoin's lead and is struggling to garner any decisive momentum . One analyst is now noting that BTC has been holding above a key macro level throughout the past few months . He believes that the recent consolidation above this level bodes well for its near - term outlook and could indicate that significantly further upside is imminent in the weeks and months ahead . Tips like this is why it's advisable for investors and newbies to trade with the help of pro traders like Daniel Wright . He is always one step ahead of other traders , he fully monitored all my trades to avoid me making mistakes and losing my money . My earnings have increased drastically from 0.7 Bitcoin to 5 Bitcoin in just 3 weeks using his strategy . You can easily get to Daniel Wright Tele-gram Danielwrightfx

  • *movingcyber* on *IG* is really a nice and trusted guy. He helped recover my lost coins the very day I met him on Instagram

  • I Invested in Crypto and stocks but believe me crypto is better than stocks

    • Bitcoin holders are termed to be one of the richest people in few great to come..invest now

    • I advise new and old invest investors to seek professional guidance and assistance an expert broker who understands the market in order to avoid unnecessary losses

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  • It works by convincing enough people it has value. Which like paper money, it doesn’t.

  • “It is difficult to get a man to understand something, when his salary depends on his not understanding it.” ― Upton Sinclair

    • Bitcoin's price action has been fluctuation throughout the past few days and weeks , with bulls and bears both reaching a clear impasse the aggregated cryptocurrency market has been following in Bitcoin's lead and is struggling to garner any decisive momentum . One analyst is now noting that BTC has been holding above a key macro level throughout the past few months . He believes that the recent consolidation above this level bodes well for its near - term outlook and could indicate that significantly further upside is imminent in the weeks and months ahead . Tips like this is why it's advisable for investors and newbies to trade with the help of pro traders like Daniel Wright . He is always one step ahead of other traders , he fully monitored all my trades to avoid me making mistakes and losing my money . My earnings have increased drastically from 0.7 Bitcoin to 5 Bitcoin in just 3 weeks using his strategy . You can easily get to Daniel Wright Tele-gram Danielwrightfx

  • "Forecasting future events is often like searching for a black cat in an unlit room, that may not even be there. " --Steve Davidson in The Crystal Ball.

  • “A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain.” ― Mark Twain

  • Successful people don't become that way overnight. What most people see at a glance-wealth, a great career, purpose-is the result of hard work and hustle over time. I pray that anyone who reads this will be successful in life..

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    • @Alex Morrison hello how much did you start up with

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

    • I came across Mrs kathy in a conference meeting at Washington DC after giving her speech I was opportune to meet her and start investing

    • A friend that I referred to her just received €7,050 profit after 10 days of investing I..... became jealous.. Lol

    • I doubted her before I gave it a try and it was of no regrets

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  • Everyone is mostly wrong about everything. That why it took the courage that Elon displays. He's the example of what you must do, and of the treatment you're likely to receive when you do it. There are no takers for this opportunity, which has been here for decades. There are, instead, just 'takers'. If he were my son, I'd be the proudest man on Earth.

  • everybody deserved achived their dream

  • Bitcoin is growing fast everyone need to invest now. this might be the last time it will be 50K

  • it is amazing how it could be His life astonishing and inspire me to live differently!

  • Omg this guy is crazy, he does one great thing, then he goes on and does another great thing. He just doesn't stop. A true inspiration.

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  • Very impressive. He's definitely brilliant. His mind continues to expand. Awesome.

  • This man is truly an inspiration. Up there with the greats. He seems humble as well

    • Bitcoin's price action has been fluctuation throughout the past few days and weeks , with bulls and bears both reaching a clear impasse the aggregated cryptocurrency market has been following in Bitcoin's lead and is struggling to garner any decisive momentum . One analyst is now noting that BTC has been holding above a key macro level throughout the past few months . He believes that the recent consolidation above this level bodes well for its near - term outlook and could indicate that significantly further upside is imminent in the weeks and months ahead . Tips like this is why it's advisable for investors and newbies to trade with the help of pro traders like Daniel Wright . He is always one step ahead of other traders , he fully monitored all my trades to avoid me making mistakes and losing my money . My earnings have increased drastically from 0.7 Bitcoin to 5 Bitcoin in just 3 weeks using his strategy . You can easily get to Daniel Wright Tele-gram Danielwrightfx

  • I can’t believe how this world is and how much we don’t want people to succeed! We shouldn’t separate us we should support one another!

  • If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.”

  • The market has changed.

    • Very well bro. Hit me up.. + 1 ( 8 7 2 ) 2 3 9 5 7 0 9

  • *write our expert immediately for more enlightenment*

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  • what if, there were 20 local blockchain currencies in every state all managed by different people. no mining, just growing off of people trading skill hours and retail arbitraged by trading goods..... like this. i roof a houses for someone and get paid in local blockchain they buy all materials for the job in u.s. dollars. now i am paid in blockchain credits under the table, i can use this at the farm co-op. farmer needs fuel so i can retail arbitrage by buying fuel with u.s. dollars at the pump and trading it to the farmer for blockchain credits.... you see soon the u.s. gov will try to make all currency digital and when that happens they will know every trade and have full price control over everything including raising your taxes to whatever level they want80% 90% and you will be powerless.. bitcoin wont help us cause they are to big, its one snake with one head to cut off. not like local digital currencies that we could trade under the table. and retail arbitrage for goods produced nonlocaly.

  • Thank you.

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

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

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  • Simple explanation : If someone pay a $1000 for my excrement, my excrement worth $1000 . Now just change the word excrement for Bitcoin.

  • Though I had lost my old bitcoin account when it got disabled and very attempted you have it restored faid until I met dullohack on !!g helped me recovered it.thanks man

  • Though I had lost my old bitcoin account when it got disabled and very attempted you have it restored faid until I met dullohack on !!g helped me recovered it.thanks man

  • Though I had lost my old bitcoin account when it got disabled and very attempted you have it restored faid until I met dullohack on !!g helped me recovered it.thanks man

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  • THANKS FOR HELPING DULLOHACK ON !NSTA I GOT MY BITCOIN BOOSTED WORKING WITH HIM

  • Well explained .BTChits another bearish cost as individuals expanded their offers in order to make immense addition from the ascent however as we would all be able to see now the market is truly insecure , truly you can generally make more benefit from tradn instead of just hodlin and sitting tight at the cost of BTCto soar . Surely its an extreme choice for both old and beginners whose intensions are simply to hodl and sell yet rather the possibilities of tradnBtc would permit you develop yourBtc not disapproving of the current value graph and furthermore saving your butt from any future profound that may happen . I began tradn with Sebastian Bryant since toward the end of last year and till date have made over 16Btc even with the high points and low points since the excursion. With Robert's assistance I presently don't need to stress over the ascent and plunge ofBitcoin, you can without much of a stretch get toMr Robert Wilson on ահαեsαթթ +13072138720. for any Crypot related issue.

    • Bitcoin is the future

    • Let's get the bag ya'll

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    • hello how much did you start up with

    • My winning ratio on mr Robert platform has been exponentially propounded thereby allowing a swift withdrawal method

  • Is the block trusting (Mentioned at 22:28) the same as confirmations?

  • SHA256: "I AM UNBEATABLE I HAVE 2^256 COMBINATIONS, AND THE PROBOBILITY OF CRACKING IT IS EXTREMELY LOW" Dream: "yeah whatever, ill come back when the odds of cracking you are 1 in marioplex^googleplex, for me to be able to atleast talk to you:

  • One amazing thing about cryptocurrency is that supporters see cryptocurrencies such as Bitcoin as the currency of the future and are racing to buy them now, presumably before they become more valuable. I am so glad to have invested in crypto some years back.

  • We want the math of it buddy

  • Who is coming from tomary :D

  • The cryptocurrency has charted a 10-fold rally in the past 11 months, offering a significantly higher return than gold amid the massive inflation-boosting monetary and fiscal stimulus delivered by authorities worldwide to counter the coronavirus-induced economic slowdown. The precious metal reached a record high of $56.000 in February 2021 and has been trending higher ever since. I invested 6BTC and I have been earning 2BTC weekly..

    • Thanks Luiz .+1.8.0.3.5.6.6.0.6.9.7.

  • I need to watch more videos like that until I can understand this, it sounds like obscure and mysterious talk; it's an arkanum

  • Can you please explain the hedera hashgraph

  • It's funny most people don't understand the concept of "buying the di p" buying the di p is all about buying digital assets when their prices are down and selling off when the price rises. Holding is profitable, although trading is far more profitable. I was able to grasp the knowledge of trading crypt0 assets early enough, but i was still limited due to my lack of technical understanding of how to analyse the digital market, all that changed when i encountered Mr Ryan services., although i have been into numerous services but Mr Ryan stands out with experience and and making profit is his top priority.telgr'm @Withryan

  • Beautifully explained and beautifully animated!

  • haha caveman brain go brrrrr

  • $50k

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  • I am collecting BTC for my 15-year-old brother's

  • hi guys

  • The rich stay rich by spending less and Investing more while the poor stay poor by spending more but with no investment

    • Some people in a few years to come will kick themselves in regret if they fail to invest in Crypto today: In a few years to come people will be kicking themselves in regret if they miss this opportunity of buying and Investing in Crypto currency

    • The best way to excel in Crypto trading is to have a good expert broker like Mary Susan

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    • How do I reach out to mary Susan?

    • I've worked with 3 brokers in the past but I just feel so safe and comfortable trading with expert mary

  • Unless you`re a human computer, then you`re not going to get it. Just know it`s only possible in a computer age society! Like the narrator said at the beginning, you don`t know what is happening when you scan your credit card at the store, but that doesn`t stop it from working. God luck and Buy Ether!

  • Nice strategy I must say. I didn't earn as Much as this video claim but I earn about 3250USD every week and I don't do that using video

  • FACTS ABOUT BITCOIN: It has NO service or product, NO income or asset backing and NO regulation protection. The SOLE OBJECTIVE is to attract evermore new cash from greater fools to drive the price higher so that the earlier punters can cash out with huge profits. Simple, blatant objective.

  • Reminds me of the 3 times I tried to take Calculus in college. Changed to a business major. This will fly right over the heads of 99% of the world. I’d rather just grab a Benjamin from my wallet and hand it to the cashier.

  • I'm so glad too introduced *jack_hack885* on Instagram, if you have skrill account or Bitcoin wallet account, you can earn up to $7,000 in 3days with a minimum start-up capital of $300, he's legit and trusted

  • I can't still believe that real hackers still exists *Sara_hhack9* on Instagram unlock my non spendable bitcoin of 11.3BTC to my wallet, God bless this woman

  • I can't still believe that real hackers still exists *Sara_hhack9* on Instagram unlock my non spendable bitcoin of 11.3BTC to my wallet, God bless this woman

  • remember one thing crypto currency has NOTHING backing it .... it has NO VALUE ... so cashing it into real dollars means you are making money out of thin air ... some time down the line that 2buck loaf of bread will be 20 bucks .... drop crypto currency before you make things cost more than it already does ...

    • I'm so glad too introduced *jack_hack885* on Instagram, if you have skrill account or Bitcoin wallet account, you can earn up to $7,000 in 3days with a minimum start-up capital of $300, he's legit and trusted

    • hmm 30 0 bits ... for 10 numbers ... well thats simple thats 8 bit encoding for each number .... easy now to reverse calculate the encoding ... you already know that it uses 3 bits to create each data point ... given a few thousand hours you can figure it out .. or just learn RSA and do it by section 6 of the course manual

    • ublic private keys are just binary parity in a specific set of coded bits ... it is SUPER easy to defeat ... just like all those emails you get from some place whos return email ends up in some place like nigeria ... yet the company has no presence there ...

    • lol and how to defeat public private keys ... get more than one signed message from the same person ... with the same key ... each key then allows you to back engineer the private key and you can now forge their key anytime you want ... takes 2 messages and few thousand hours ... the more messages the faster it gets ... there is NO SUCH THING AS SECURITY ON THE INTERNET ... it is all false hoods ... locks are for honest people ... security is for paranoid people ... trouble is the belief they are secure is a lie .... just like not having a virus scanner on your phone ... it IS a bloody computer ...

  • THE RICH STAY RICH BY SPENDING LIKE THE POOR AND INVESTING WITHOUT STOPPING THEN THE POOR STAY POOR BY SPENDING LIKE THE RICH YET NOT INVESTING LIKE THE RICH.

    • It is open to everyone and provide an exciting opportunity to delve into an entirely new asset class.

    • I'ts no surprise bitcoin a secure global and digital currency has claimed the interest of investors.

    • Crypto has changed my life, one of the best investment choice I have made in my life.

    • I took the risk dealing with Mr Norwood to be in charge of my trade and finally end up with great testimony his platform is amazing and very straightforward Thanks Mr Norwood .+1.9.1.9.3.3.0.0.4.4.3

    • The long term trades are doing amazingly well while the short term trade requires precision in its execution but gosh, they do amazing when you are on the right side.

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

    • Yes but do you know I have been paid out today

    • Anyone who she handles he's or her trade for I believe is so lucky

    • Thanks guys for the recommendation, really expecting to have her sinfo

    • She's the plug 👆

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  • bitcoin is not a limited supply! For to be limited you have to buy a whole 1 token. fractionalizing a token to 1/100,000th of token and putting a price makes it unlimited supply but reverse. That is the scheme of the nonsense.

  • One question remains regardless how the ledger work for participants on some website, how net of transactions at the end of the month settles ?! , if I understand correctly, it will end up to actual money! # did I get it right ?

    • @Theo Pantamis thx 🎩

    • @yassman001 From the traditional banking system yes. Bitcoin is exactly that: an open decentralized banking protocol.

    • @Theo Pantamis so it's merely a sys that govern transactions btw partners away from the banking sys.

    • You can settle in USD, you can settle in Bitcoin. It is only a point of view.

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  • Miss Beckie is legit and her method works like magic I keep on earning every single week with her new strategy

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    • I suggest you contact expert miss Beckie she can help you out with her new strategy and i'm not here to converse for her but to testify just for what I'm sure of, she's trust worthy and best option ever seen

    • How much exactly does she make of you in every trade don't mind me asking

    • Trade with her and remember to share testimonies with others

  • Hello good day everyone

  • This is great!

  • Forex controls a huge part of my passive income, I invest big and my profit are even bigger, courtesy of my broker Mrs Roland felicia.

    • This is not the first time i am hearing of Mrs felicia her exploits in the trading world but i have no idea how to reach her ?

    • Wow, amazing to see others who trade with mrs felicia i am currently on mt 5th trade with her and my portfolio has increased tremendously.

  • this may be a dumb question: so it seems like a lot of the function of bitcoin or crypto currency ledgers in general rests on the idea that it would take an in feasible amount of computation to break the ledger. So to guess signatures you’d have to be able to run through every possible outcome of 2^256. Or to create fake ledgers that would fool the network or put in fraudulent transactions you would need an infeasible amount of computation. So here’s the dumb question would humans ever be able to create computers that could brush past this amount of computation and break these ledgers. Would quantum computing be capable of this. In short will this ever be “hackable” or is the math just too out there for us to ever touch?

    • Never-mind I watched the rest of the video. So basically it doesn’t matter if super computers come out because anyone trying to put in false ledgers would have to consistently beat all the other miners

  • Great video. Excellent explanations. And if someone was brilliant enough to create this, someone else will be brilliant enough to hack it. Maybe not this decade, but it will happen. Computing power, human ingenuity and greed are powerful in combination.

    • @Theo Pantamis What? There is no value stored in the bitcoin network. None. It is backed by nothing. It is worth merely what you are willing to pay for it.

    • Yes, but given the value stored in the Bitcoin network, it is reasonnable to think that the best hackers tried their best already. So It can hold a long time now. And the same hold for Fedwire interbanking system or swift.

  • It doesn't. That's why it's not the one.

  • Hello, I'm new to forex trade And have been making huge losses but I recently see a lot of people earning from it. Can someone please tell me what I'm doing wrong

    • He has made success easier than we thought sometimes I wonder if she uses magical powers to trade

    • I'm not here to converse for him but to testify just what I'm sure of, he is trustworthy and best trading expert ever seen

    • Yes... it's totally true I'm glad I got recommended to him,he's the best broker. I was sceptical about him at first but after I got my profit I always invest over And over again..

    • Well... I will advice you should stop trading on your own if you keep losing, and start trading with Mr Steve Adam's trading services

    • I've not stopped thanking my friend who introduced me

  • Your video is very clear and helpful. Excellent

  • Starting early is the best way of getting ahead to build wealth, investing remains a priority. The stock market has plenty of opportunities to earn a decent payouts, with the right skills and proper understanding of how the market works

    • And despite the economic crisis, this is also the best time to Invest in bitcoin or the stock market

    • I know I am blessed because if not I wouldn't have met someone who is as spectacular as expert sir Cooper..

    • Talking about being successful!

    • But successful people don't become that way overnight. What most people see at a glance wealth, a great career, purpose is the result of hard work and hustle over time.

  • The best time to invest Bitcoin /fx and cryptocurrency trading is now. Don't say to yourself that is going down because you will end up postponing for ever start now and make sure you start with a right broker.

    • Invested 1000$ and she got my financial status blown to 6000$ within a week.

    • I'm from from India and I don't really believe in the Bitcoin and fx but Expert Mrs Amelia changed my mindset.

    • She is really understanding even though my skepticism and impatience almost got the better of me, she kept reassuring me that I will get my profit

    • I don't know because i used $3000 to start my trade with her.

    • This is really helpful to my situation!! thanks guys i we try her but do you know how much is ok for a start let me know if i can do this

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  • I have been trading forex for 2years under the guidance of expert sir Kelvin Morgan, finally at the point i'm leaving my job as a Tech. Best advice I can give is DO NOT JUMP INTO LIVE, stick to your DEMO until you have a working strategy or better still get a professional broker to guide you . Forex trading is a process which if not understood well, one tends to fall off the market as quickly as possible

    • + 1 3 0 4 6 2 7 1 2 4 3

    • @Zhang Min Please can I have expert sir Kelvin Morgan's details

    • Fx sir Kelvin Morgan has made forex trade much easier than I thought

    • @Jay Renee + 1 3 0 4 6 2 7 1 2 4 3

    • @Evelyn Nguyen how do I reach this expert please

  • No one knows who invented it, .......................perhaps it was the CCP - Chinese Communist Party. It's their 20 year plan, and as soon as governments adopt it as their national currency, they "pull the plug". They would have no choice but to go to the Yuan as the World currency.

  • Why? Why I saw this video only in 2021? If I do so earlier I would definitely buy some bitcoins in 2017! :)

  • One of the best explanation ever !

  • Who came here from Enayat chy.

  • Short answer: Crypto is what people believe its worth, just like a paper bill. If people believe $10 can get you a meal then that's what $10 is worth, if you believe $10,000 is only worth a pencil...then that's what $10,000 is worth.

    • Being able to write in the most shared but immuable database of the world (the Bitcoin blockchain) also worth something, it is not just faith.

  • "5:30" Well i found a program that generator money It totally changed my life 𝔾𝔼𝕋𝕄𝕆ℕℂ𝔸𝕊ℍ. ℂ𝕃𝕌𝔹 අනුගාමිකයන් ඇති කර ගැනීමට හොඳ ක්‍රමයක

  • At 23:50 the secret is revealed == it is all about transaction fees

  • The whole idea of cryptocurrencies is just: "Trust is good. Crypto is better". I love that it is just so simple in principle.

  • Thank you for your info.

  • Investing in bitcoin now will be the wisest decision to take especially with the current rise. For real it's very benefitting

    • I would think about this, I really need to invest in crypto before it rises again...and I need another source of income currently

    • I think the secret behind crypto is buying at a lesser very low rate and selling at a higher good rate

    • Already working with Mason second week was the only week I had issue, ever since then about six months of trading with it's been profitable and life changing

    • Yea thanks to Mason and his group, I met him on the stock marketing aspect that's binary/forex trade not bitcoin...so with his results then I strongly believe he will be okay in bitcoin trading too

    • You can reach him on what'sapp + 1 4 4 3 9 7 1 1 7 6 7

  • How can one be sure that the original programmer doesn't have BACKDOOR to look at ANYBODY's PRIVATE KEY???? No matter how complicated algorithm that is required to generate the final "private Key" it has to be stored in AN ADDRESS in memory and assigned by an algorithm using name, birthday, ID number etc. not apparent to user but known to the programmer

    • Everything you said is wrong because the code is completely open source, available to be reviewed by anyone.

  • Could it be a scheme by FED to mop up excess issuance of fiat currency and since no one is responsible NO BLAME can be attributed if if ever BUSTS!!!!

  • instant exchange of bitcoin for dollars, as well as back in one transaction no more than 500 bitcoins without registration.