I not only want to thank Ivan for the help, coz this dummy just learned some, but thank you all in your posts for being kind to each other, you all communicate and collaborate kinder than most any other threads I find on this YT search engine! Keep spreading the love!
@@gaborfzks and who are you to judge any one? are you on the level to judge someone? i mean what made you think that you can actually judge a person? earth was there billion years ago and will be some billion years more, its just that you came to earth little early beside that what are you and what you have?
Excellent video, Ivan!! Nice and fast and kept me totally interested. I definitely got a good understanding of how the blockchain works, as only coding can do. Thanks and keep up the good work! -- laura, a new subscriber
Brooooooo your the big one Master! Thanks for this video. 2 days ago i was asking myself about How to program my own Blockchain from scract! Really appreciate!
Ivan: I need some sort of artificial lighting .... fast forward 2020: Industry standard lighting, professional grade microphone... 5 TV sets! Congrats man, you have come a long way, keep succeeding - Paul
Superb explanation and coding demo of a difficult concept. Thanks Ivan. Keep your videos coming. And the lighting is very good. No need to adjust the curtains.
Great video Ivan, very clear and concise. Would be nice to see you explain Genetic Algorithms and Neural Networks(preferably using Java) and maybe an Evolutionary Neural Network as a conclusion for both topics
Total outsider with no tech knowledge but I understood what you were saying. Thanks, Ivan. Great job explaining. Btw, is there a more elaborate video for total newbies like me to learn more on how to use the program and such ?
Amazing video, thank you, I'm a junior developer myself and was interested in how it would all work and your video has shed some light on this. I can see where this can go from here. My guess is, when a genesis block is created and verified it is distributed to what ever network is specified, then which ever block handles a new transaction verifies it by checking with all other blockchains in that network. if its correct (no edits are made) the next block accept/added and distributed again and then on and on. In the case of the other block not being verified it gets rejected and those transactions don't get added. I know its hard (probably impossible due to the verification checks before a new block is accepted but humour me) what if some how two networks of chains within the same system get created somehow, will all transactions cease? how will anyone know which network is the correct one and then move on. Anyway, you've gained a new subscriber, as I want to learn more about this. how you make more and expand, maybe teach a blockchain class or something for programmers
I think automatically the longest chain is accepted as the correct one. If an incorrect chain is created by someone it's incredibly difficult to sustain it and keep making blocks fast enough because of the computing power required to beat the rest of the network. So normally the correct set of transactions defaults to the longest chain.
But how can I confirm the length of the blockchain from the implementation point of view? I mean it is possible for someone to change the transaction and hash it and make it some nth(some large number) transaction, right?
sort of got it, except who verifies that the hashes remain the same throughout? If my hash compares with the next guys' but then it diverts with guy/girl # 4, what happens then? who polices it? have to dig more into it. Good start for me, though.
like comparing pieces to determine if it matches 100percent, to verify authenticate the data. like a password? it's just buying into over complicating things. maybe you should use your smarts to create a simple process. that's how you bring humanity together, if we all get it! verses too complicated and people are like whatever and that lack of understanding becomes power
“Lets give her this amount 999 of BTC to mom”. She deserves even more. You will be the one who taught me a hash is just a digital signature. Great video. Thank you.
"This kind of hash is very hard to crack" - wrong. The example could very well use MD5 or even better: SHA256. Very easy to use with Java. You could claim that it's very hard to crack then. The regular Java class's hash function is not a cryptographic hash function in the sense that it'd be hard to crack.
@WinterXL If we were demoing a front-end library for a notes example application I'd agree. But security is the most important (!) cornerstone of blockchains. I'd even agree to use the `hash` function for demo purposes, in case the author warns excessively against using it. But saying that it's hard to crack? He may meant that *cryptographic* hash functions are hard to crack... but it doesn't seem like it.
Hi Ivan! Great video! I've been following these concepts for a bit, but I haven't dived super deep and I stumbled upon your video. Excellent explanation! Cheers man!
First two and a half minutes: Ok, this is some very basic stuff. I already know what a hash is. How are you possibly going to explain this whole thing in just 15 minutes? Literally one minute later: Mind blown!
Ivan on Tech So, it's using a class for store a data previus and for futher it using for hashing to make a blockchain, can i useing Linkedlist method, or stack or another of memory store techninc?
Thanks for this great video! That's a classic scenario when greed and ignorance are meeting. I have friends buying Cryptos without any minimal knowledge what is a block chain! GREED and IGNORANCE, I'm sorry about them.
Ivan you are a legend. Made it really clear to explain the security of the blockchain. Can you do a similar video on other consensus methods like Hashgraph and Tangle. That would be legendary. Thanks mate.
Hit the like button if you are using GorillaGPUs mining service and watching this! I really can't deal with spending much on mining rigs when I can use THF online and make them the same rewards.
great video ! i am not particularly interested in informatics, maybe because i didn't graps the informatic system you operate in, but I learned a lot, so thanks. keep up the great work
Yes, I have been using their online services for a long time. I must say I am impressed with the figures I make through their services than using these physical mining rigs that are very expensive and hard to set up when you can make a good amount of money using an online mining server like GorillaGPUs
Really good video! But some questions you answer there, raise more question. So it would of been really great if you could elaborate on these: 1) When some one sand coins to someone where does this transaction request goes: is it being broadcasted to every registered miner or it goes to some intermediary computer where all the miners get it from. 2) Does the bock of particular coin always has the same number of transactions or it varies. 3) how is it enforced that miners put the same transactions in the same block. 4) where the transactions stored before they make it into a block(in a sql database or flat file or else), also where are the blocks saved(in a sql database or flat file or else). 5)How is it addressed, if for example block # 12 in blockchain and block # 3098 produce the same hash value or does it matter at all as previous block has value is also taken into account. Sorry for the long comment/request, my list is much longer, but I already feel like I am abusing you good will, so I will stop here. Once again thank you for your videos, they are very informative and straight to the point.
Really nice explained and easy to follow up. Thank you very much for taking the time to produce the video! Can you let us know which app you are using to work with JavaScript? I cannot see in the video which app you are using. Thank you :-)
Наука
New 2020 version: ruclips.net/video/4FwBB6vhilU/видео.html
helloo please how can i contact you ?? i have a lot of questions to ask !!! pleaseee thank you
Ivan, your performance in 3 years time is awesome!
Wow nice video ....03155797844 me watsep nmbr
Hi 2021 Russian
The link is marked as private . Thanks for the above video. one more step to being able to program a block chain myself
I not only want to thank Ivan for the help, coz this dummy just learned some, but thank you all in your posts for being kind to each other, you all communicate and collaborate kinder than most any other threads I find on this YT search engine! Keep spreading the love!
What I understood from this video is that I'm not a fast learner
This made me laugh so hard lol
I can morse code
@@Seren2010kinder lol
How much would this cost if hiring a contractor to develop /complete ?
@@emekabronson8697 1000 to 1700$
Thank you, Ivan! It makes me understanding this technology in Java terms and how to code blockchain.
Wow, time fly’s! A young boy becomes a grown man in front of our eyes.
He was 21 years old in this video 3 years ago... he‘s born in 96
He no longer uses the window as a light source
gaborfzks Werent you young once? Wow a kid once in daipers commenting on youtube
@@aayo_gorkhali Growing old is inevitable, growing up is optional.
@@gaborfzks and who are you to judge any one? are you on the level to judge someone? i mean what made you think that you can actually judge a person? earth was there billion years ago and will be some billion years more, its just that you came to earth little early beside that what are you and what you have?
Awesome video Ivan! Thank you so much for putting such a complex topic into digestible format!
Thank you, brother, I put my finger up! You really met in 15 minutes and everything was clearly explained!
Hello, does your blockchain course teach Solidity?
Simple and straightforward. Need more people like this.
You're great!
I'm a tech guy my entire life and was never interested in programming.
You just changed that!
Thank you!
Thanks mate, very concise and clear explanation. I've been looking for exactly this for a while now.
the last 2min were the best thing i watched in 2019. great job
Ivan, super stuff you made! Thanks a million!
Excellent video, Ivan!! Nice and fast and kept me totally interested. I definitely got a good understanding of how the blockchain works, as only coding can do. Thanks and keep up the good work! -- laura, a new subscriber
your videos is absolutly awesome, the smoth talking the clear expelation the topics, thanks Ivan!
Thank you Ivan. Your intro to Blockchain is the best I had the chance to see. Have a nice day.
The lighting looks good to me.
Natural light that's the best when you can use it
To say "digital signature" is just a way of making it understandable. Good explanation and very clear, Heja Sverige!!!
Brooooooo your the big one Master! Thanks for this video. 2 days ago i was asking myself about How to program my own Blockchain from scract!
Really appreciate!
You've opened my eyes on blockchain technology. Thank you so much!
Ivan: I need some sort of artificial lighting .... fast forward 2020: Industry standard lighting, professional grade microphone... 5 TV sets! Congrats man, you have come a long way, keep succeeding - Paul
like, subscribe, bell button, all (UACA remix)
The lighting is OK bro ty for the educational video!
Well done, brother. Following your code was spot on, but the greater benefit is just showing it and giving viewers a glimpse of the process.
I`m a Norwegian newbie into blockchain and coding. You explained it great, easy and understandable.
That was REALLY interesting and easy to understand. Thank you. Have subscribed👍
Solid upload, pretty straightforward and easy example to grasp from someone with no programming background.
+1 Subscriber
Keep up the great work!
Superb explanation and coding demo of a difficult concept.
Thanks Ivan. Keep your videos coming.
And the lighting is very good. No need to adjust the curtains.
Great video Ivan, very clear and concise. Would be nice to see you explain Genetic Algorithms and Neural Networks(preferably using Java) and maybe an Evolutionary Neural Network as a conclusion for both topics
If you understand blockchains I need a developer
Loved it. Thanks mate!! Keep Going :)
Thanks dude, you make it simple for us. Great job!
I found this video in 2021. It's unbelievable how you developed from 2017. Well done, you're doing a great job!
T:h:a:n:k:: f:o:r:: w:a:t:c:h:i:n:g: a:n:d::: f:e:e:d:b:a:c:k:: w:r:i:t:e:: m:e:: n:o:w::f:o:r: m:o:r:e:: i:n:f:o:r:m:a:t:i:o:n::
W::h::a::t::s::a::p::p::
+1::9:::7:::1:::9:::1:::0-3::6::0::9:..
Thanks! Your new subscriber.
welcome my man, glad having you here!
Your videos are very good...I am a new subscriber, too.
Great description of what is at the core of a blockchain. Suddenly a mystery is solved. Thank you so much!
Total outsider with no tech knowledge but I understood what you were saying.
Thanks, Ivan. Great job explaining.
Btw, is there a more elaborate video for total newbies like me to learn more on how to use the program and such ?
You didn’t search for this. It was recommended
T:ԋ:α:ɳ:ƙ:: ϝ:σ:ɾ:: ɯ:α:ƚ:ƈ:ԋ:: ι:ɳ:ɠ: α:ɳ:ԃ:: ϝ:ҽ:ҽ:ԃ:Ⴆ:α:ƈ:ƙ:: ɯ:ɾ:ι:ƚ:ҽ:: ɱ:ҽ:: ɳ:σ:ɯ::ϝ:σ:ɾ: ɱ:σ:ɾ:ҽ:: ι:ɳ:ϝ:σ:ɾ:ɱ:α:ƚ:ι:σ:ɳ:
W::ԋ::α::ƚ::ʂ::α::ρ::ρ:::
+1::(7::0::3)::7::7::5::0::9::3::9:..
Really nice video, to explain the concept in the simplest easiet way ever. Thanks a lot man.
This video gives a really good demo of a blockchain in action. Seeing some code really helps in understanding the concept.
Thank you, handsome boy~
Amazing video, thank you, I'm a junior developer myself and was interested in how it would all work and your video has shed some light on this. I can see where this can go from here. My guess is, when a genesis block is created and verified it is distributed to what ever network is specified, then which ever block handles a new transaction verifies it by checking with all other blockchains in that network. if its correct (no edits are made) the next block accept/added and distributed again and then on and on. In the case of the other block not being verified it gets rejected and those transactions don't get added.
I know its hard (probably impossible due to the verification checks before a new block is accepted but humour me) what if some how two networks of chains within the same system get created somehow, will all transactions cease? how will anyone know which network is the correct one and then move on.
Anyway, you've gained a new subscriber, as I want to learn more about this. how you make more and expand, maybe teach a blockchain class or something for programmers
I think automatically the longest chain is accepted as the correct one. If an incorrect chain is created by someone it's incredibly difficult to sustain it and keep making blocks fast enough because of the computing power required to beat the rest of the network. So normally the correct set of transactions defaults to the longest chain.
longest meaning most transactions or created the first or older?
Longest meaning the chain with the largest amount of blocks.
Leighton Jacobs you're right bro..
But how can I confirm the length of the blockchain from the implementation point of view? I mean it is possible for someone to change the transaction and hash it and make it some nth(some large number) transaction, right?
One of the best explanation of the block chain... Awesome man!!
Been trying to get this basic concept for a while now. Thanks for your much sought after knowledge.
Ok! How many people got it and how many people did not get it? Your comment below.
AlphaMale Mc5 Got it partially, some aspects were not clarified - but I think this was only due to limited time/for the sake of simplicity.
Didn't get it
AlphaMale Mc5 don't understand a damn thing
sort of got it, except who verifies that the hashes remain the same throughout? If my hash compares with the next guys' but then it diverts with guy/girl # 4, what happens then? who polices it? have to dig more into it. Good start for me, though.
like comparing pieces to determine if it matches 100percent, to verify authenticate the data. like a password? it's just buying into over complicating things. maybe you should use your smarts to create a simple process. that's how you bring humanity together, if we all get it! verses too complicated and people are like whatever and that lack of understanding becomes power
“Lets give her this amount 999 of BTC to mom”. She deserves even more. You will be the one who taught me a hash is just a digital signature. Great video. Thank you.
THIS is why i love your channel so much! GREAT Video! love the developer angle!
after 9++ videos i've watch, this is the one that help me understand blockchain. Thanks man.
"This kind of hash is very hard to crack" - wrong. The example could very well use MD5 or even better: SHA256. Very easy to use with Java. You could claim that it's very hard to crack then. The regular Java class's hash function is not a cryptographic hash function in the sense that it'd be hard to crack.
Agreed!
+1
MD5 isn't really a good encryption method now days
@@marcosrun9837 yes, I shouldn't even mentioned it. But thta's why I said "or even better: SHA256"
@WinterXL If we were demoing a front-end library for a notes example application I'd agree. But security is the most important (!) cornerstone of blockchains. I'd even agree to use the `hash` function for demo purposes, in case the author warns excessively against using it. But saying that it's hard to crack? He may meant that *cryptographic* hash functions are hard to crack... but it doesn't seem like it.
dijital signatsur bliet
Hi Ivan! Great video! I've been following these concepts for a bit, but I haven't dived super deep and I stumbled upon your video. Excellent explanation! Cheers man!
How hv u reached so far after 4 years?
Wonderful, following you since 2018 !
First two and a half minutes: Ok, this is some very basic stuff. I already know what a hash is. How are you possibly going to explain this whole thing in just 15 minutes?
Literally one minute later: Mind blown!
Can you upload the code?
boom github.com/ivan-liljeqvist/SimpleBlockchain
yeah you wouldn't wanna type all of these 4 lines all over again ;)
LMAO
BAM
Ivan on Tech
So, it's using a class for store a data previus and for futher it using for hashing to make a blockchain, can i useing Linkedlist method, or stack or another of memory store techninc?
Hey Ivan! You are awesome! Thanks for sharing.
Never thought anyone can explain this detail.Thank you so much
Thanks for this great video! That's a classic scenario when greed and ignorance are meeting. I have friends buying Cryptos without any minimal knowledge what is a block chain! GREED and IGNORANCE, I'm sorry about them.
Do you know how to make a complete cryptocurrency? We are looking for a developer for our project... let me know, if you might be interested.
I'll pay you $10,000.
I can assist in your project? I've got 2 years of coding experience and have been helping with a few other coin developing their project such as $BUZZ
Lol why should you pay someone 10k when he offers only 4k? As a business that would be very dumb lmao
I was looking for this kind of video and i really thank you ! That was clearly explained !
So awesome, really amazingly described the working of blockchain. Thanks a lot
I know I'm late, but thank you! This is the best explanation I’ve found of what a blockchain really is. Great stuff.
Showcasing this example is very elementary for understanding the technology. Thx!
It was the best explanation of the concept on youtube! Thanks man!!!
really good one Ivan ... crisp for a techie... highly recommended... keep it up ...
Really helped me understand the concept of blockchain a bit more for a beginner programmer. Thanks buddy, great video
Ivan you are a legend. Made it really clear to explain the security of the blockchain. Can you do a similar video on other consensus methods like Hashgraph and Tangle. That would be legendary. Thanks mate.
Very useful. Thanks for your videos. Keep up the good work!
Hit the like button if you are using GorillaGPUs mining service and watching this! I really can't deal with spending much on mining rigs when I can use THF online and make them the same rewards.
Really smart way of explaining the blockchain. Thanks!
I really enjoyed thus and finally knew how this works. Basic cleared so nicely brother. 😊
Great video to understand about the block chain coding for beginners like me. thanks.
Tanks Ivan! This was super! Made me understand more of the underlying technology for sure! 👍😊
Amazing stuff. I’m not a programmer. Completely understood ur explanation. Thanks 🙏🏾
Subbed for perfectly adjusted lighting. Yes, I'm serious.
Excellent presentation; this gave me a good idea of how blockchain is implemented.
Easy to understand , sample is perfect for beginners, thanks ivan.
Thanks so much for keeping it simple. Cheers!!!
I have heard a lot about GorillaGPUs, and I will start today. My friends are making money with these services.
great video ! i am not particularly interested in informatics, maybe because i didn't graps the informatic system you operate in, but I learned a lot, so thanks. keep up the great work
Awesome thanks. I have been wondering about this for a while.
Man that was a great explanation in a short time..great video 👍
Excellent demonstration video thanks!
cool and simple explaination man! Thanks!
Ivan keep this up, you're the man!
Thank you for this video that has helped me, a non coder, understand how blockchain works.
Great video Ivan, it rally helps me to grab the blockchain concept
great vid!! how do you undo a hash? (So you can see it?)
Thank you for the informative video - it helped to clarify some concepts.
Thank you very much! I finally understood what makes blockchain so safe! Could be used in some of my implementations...
Thanks for posting that! You made it look really easy haha
Subscribed! Learning to code right now... my first language. And your content is awesome. I’m going to do an ICO one day for a startup
Yes, I have been using their online services for a long time. I must say I am impressed with the figures I make through their services than using these physical mining rigs that are very expensive and hard to set up when you can make a good amount of money using an online mining server like GorillaGPUs
Nice easy explanation. Thank you!
Love you bro, u kept it simple n Engaging. :)
Awesome video! Best explanation I found out there. Thank you Ivan!
T:h:a:n:k:: f:o:r:: w:a:t:c:h:i:n:g: a:n:d::: f:e:e:d:b:a:c:k:: w:r:i:t:e:: m:e:: n:o:w::f:o:r: m:o:r:e:: i:n:f:o:r:m:a:t:i:o:n::
W::h::a::t::s::a::p::p::
+1::9:::7:::1:::9:::1:::0-3::6::0::9:.
Hey man love your videos! Would you happen to know how to deploy your own blockchain and create a mainnet for it?
Thank you very much. Very good explanation of how to construct a simple blockchain.
Very good and easy explanation Ivan.
thanks for the most simple explanation on how public ledger blockchain works, I only wish I could have seen this earlier in 2017 :)
>>T•e•x•t_m•e_f•o•r_s•o•m•e•t•h•i•n•g_n•ew_n•o•w_o•n_m•y•_t•r•a•d•i•n•g_t•i•p•s
Really good video!
But some questions you answer there, raise more question. So it would of been really great if you could elaborate on these:
1) When some one sand coins to someone where does this transaction request goes: is it being broadcasted to every registered miner or it goes to some intermediary computer where all the miners get it from.
2) Does the bock of particular coin always has the same number of transactions or it varies.
3) how is it enforced that miners put the same transactions in the same block.
4) where the transactions stored before they make it into a block(in a sql database or flat file or else), also where are the blocks saved(in a sql database or flat file or else).
5)How is it addressed, if for example block # 12 in blockchain and block # 3098 produce the same hash value or does it matter at all as previous block has value is also taken into account.
Sorry for the long comment/request, my list is much longer, but I already feel like I am abusing you good will, so I will stop here.
Once again thank you for your videos, they are very informative and straight to the point.
well done.. It's so important to demystify this stuff for a general audience :)
Great!!! It's the best video about this theme. Thanks to teach us
Really nice explained and easy to follow up. Thank you very much for taking the time to produce the video! Can you let us know which app you are using to work with JavaScript? I cannot see in the video which app you are using. Thank you :-)