Blockchain Technology Architecture

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[@gowtham4JSP]

Thank you sir.. Waiting for more videos about BlockChain !!

[@prembhargav1859]

Really you are doing spoon feed the explanation is clyster clear great job

[@Mahesh-gq7fm]

Really great explanation ..Thank you so much fr ur videos

[@paulventura3118]

Thank you for the great explanation! Just subscribed! Keep it coming man

[@217officeoffice9]

Great. I am not the only one assuming this. Clear and well explained in short time [.~.movements.~.?].

[@Theananomousvj]

All the videos are awesome.. But Please make some more videos regarding to block chain..

[@hemamaliniveeranarayanan9901]

awesome videos sir.. very clear and simple

[@karthiks7811]

Navin reddy , Is it still worthy learning blockchain?Are there any implementation in real world?

[@revocatusfaustine4444]

Awesome. keep it up my brother.

[@mibo747]

GREAT VIDEO THANKS

[@vijayanandmehta6379]

Nice and simple explanation provided... thank you so much Naveen sir 😊

[@diteshpoojaritechgeek]

So if a particular block gets changed, for that new block will be created with new hash and updated data. And if so what happens to the old block? will it still be there?

[@debangshubanerjee1311]

just going by the above explanation, the last block can be manipulated easily r8? coz theres no more blocks containing the linkage, so lets say the last block is addedat time x. the next block will only be added in x+10 min, so in this 10 min the last block can be manipulated?

[@jagannathsahu4387]

Really nice explanation sir..Thank you so much.. excited for the next session..

[@Anonymous0224.]

PLZZ ANSWER SIR,......How to evaluate on in which block the change has made if in case of hacking how to analysie the block on which the change has been made as every hash is connected to new chain

[@ankittripathy7065]

Thank you so much...!

[@ushasaibaba8793]

sir i have one doubt suppose the last block will be hacked by some one hackers. bcz all datas are in last block there then the data must be losted then how it possible?

[@virajshah6362]

Sir how will block 2 know if the data is changed in block 3 ? Only H3 onwards the hashes will change right?

[@ashwinvnair8318]

Sir can i know the constraints for creating a block in ethereum?

[@kay_v_saiprakash1379]

Big big thanks for your videos .The videos are crisp and clear.

[@MohammedShirhaan]

Please make a tutorial on "Java Reflection API" please.

[@placement3608]

Sir u will get 1m subscription very quickly

[@yakkalurusathvik2169]

Thank you Sir.

[@abhiraj3477]

Nice Sir

[@saumyap07]

NICE EXPLANATION

[@shivkrishnajaiswal8394]

can the timestamp not be modified?? Should there not be a server from which timestamp must be validated. If I have installed a blockchain system in my system then whenever i modify/add/update a new block, how is timestamp calculated?

[@79ompatil26]

It's like a doubly linked list except it's filled with hash values and other complex stufff

[@carl5192]

I always describe it as that too.

[@DeepakKumar-uu6bl]

Make one video on Data science🙏🙏

[@harshanadendla5873]

Sir did not understand "need 50% of validation in blockchain network".....plz explain.

[@jitho7596]

iam enjoying it

[@gouravinsan1339]

Thnx sir 1st view,comment and like.....

[@FazalTechWorld]

mashallah best explanation

[@krishna.yaadav]

Sir when will you start real programming of BlockChain?

[@techwithwhiteboard3483]

@@Telusko you finished the series without you should keep promises lol

[@junaidahmed9617]

What if i do a mistake in a block and later after a year i find out that mistake and i want to rectify it , the whole chain for the year will change ?? Or

[@dn9416]

Transactions once added to blockchain cannot be changed for what ever reason.. If whole network is corrupted due one fault, when we have a beautiful feature called fork...

[@dazelmann6589]

You will work upon different branch after rectifying the correct change and will then fork the latter changes you did

[@boundlessgenie3893]

" Block chain can solve issues based on data , not all the problems "

[@madhanvb7222]

hi naveen if u upload a series of videos daily will b helpful coz its difficult to follow aftr long gap on block chain

[@babak.basharirad]

Good explanation, but wouldn't be much clearer, if you speak slower? Even youtube cannot understand and make the caption! POW is not clearly explained.

[@abdulazizalharbi6228]

what about changing the last block? there is no block a head of it that will causes a problem when the hash of the last block changes due to changing the data, how is this problem handled ?

[@debangshubanerjee1311]

my question too

[@hirenviramgami1936]

sir give me idea for phpmini project in last year of bcs project is frsh or no exist in real life but it to be needed in real life

[@coldfusiontv]

Hey!

[@noobie6784]

Intro song was nice. Can i get the name

[@soumyadipchowdhury297]

finally sir

[@sphercules1]

What happens if I change b5 then it won't have any blocks connected to it in forward direction

[@Riskw-mk1lo]

public ledger. all has one type of ledger but you'll have different, so the operation would be invalid

[@manassinha6155]

I don't think you know how to use air quotes 😅 anyway great video man 😇

[@muzmmilpathan7781]

Sir it looks like a linked list

[@victoryfile]

Think of the blocks as the elements of a linked list and the communication protocol between two blockchain nodes as the "link" and you'd be right. It LOOKS like Linkedlist.

[@alt-f4gaming222]

as i am a beginner , there is a question in my mind why are we using many blocks to store the data and connecting them with hash, why cant we just take on block only ...

[@alt-f4gaming222]

one block**

[@amanjain256]

If we have 5 blocks, we have made sure that previous blocks cannot change data without other blocks noticing it. But what if, the 5th block which is the latest added block, changes data present in it?

[@midwestmetro6361]

The data cannot be changed too, because it’ll need 50% of the majority of the blockchain network to approve of it. And a super computer. Same reason 😁

[@midwestmetro6361]

But if the data changes, the hash definitely changes

[@rishabhchaudhary6207]

Sir it is confirm that we can change data in blockchain

[@awsomekaran4836]

There is no way you can change data as it creates new key and it makes invalid to other blocks if u edit it . So even for changes it creates new block with new key nd changes are done thru voting which is later in series named consensus.

[@karysutariya1651]

don't you think will raise issue of black money. because, no one controls this blockchain.

[@amaljose116]

A nooby question : Does each block represent each coin in the crypto?

[@coldfusiontv]

Each Block Is Like A Receipt, Where You Can See The Transaction Details...The only thing is, you cannot manipulate the data around and within any block because it's a Blockchain!