Blockchain Explained

Learn more about Blockchain technology: http://ibm.biz/learn-blockchain-technology
Check out this blog on the different types of Blockchain: http://ibm.biz/different-blockchain-types-blog
Learn about different Blockchain use cases: http://ibm.biz/blockchain-use-cases

Blockchain is a distributed and immutable ledger allowing you to track anything, including tangible or intangible goods. This enables users or organizations to digitally and securely record entries, that are in-turn endorsed and secured by a community of users.

Check out this lightboard video with Sai Vennam from IBM Cloud as he takes a deep dive into blockchain technology and covers everything from smart contracts to permissioned and permissionless blockchains

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Giới thiệuThúy Navi

Thúy Navi 26 tuổi đam mê du lịch, công nghệ,đang sống và làm việc tại Hà Nội. Founder,Blogger tại Website: http://www.internetviettelnhatrang.com/

49 Bình luận

  1. Thank you for the overview but jut have a couple questions. In a permissioned blockchain do all parties run an independent node to validate data integrity? Also how would blockchain perform better than a distributed database if it is just hinged on majority consensus?

  2. I just have a question and I could not find the answer, would you guide me, please? I try to write my question in many different forms hopefully, you may get my question. I know what is blockchain and how it works, but I just want to know what kind of data are putted into blockchain transactions, I mean why the blockchain system is used for coding data? who is the sender of data that pay miners as bitcoin for trying to solve a block? who will receive the uncoded and completed blocks as a package? are blockchains governments classified information, that they wanted to transfer, or are such blockchain transactions just people daily transactions which spread out through the blockchain system (encrypted) as a safer, faster way with a non-central server room which can not be destroyed, produce too much heat or use too much electrical power in a local area or need repeatedly upgrades? I want to know the substance of the information which are coded through math equations and blockchain, senders and receivers of the information, and why they gave credit to such a huge encryption system that needs millions of miners to guess answers block by block? (byzantine algorithm) what kind of information can be that important to be coded like this? for example: all transactions, even generated bomb codes that are changing repeatedly and every 1-2 minutes can be safely encrypted with a simple hex 64. why the blockchain system created? and who use it as a tool to solve accidental math equations. I believe it is more likely for spying purposes for some governments. imagine you forgot the code of your suitcase (2 locks), and you don't want to try all numbers from 1 to 999 for each sides, so you hire 2 networks of people to find both answers separately, as soon as the answers found, the network members will verify it separately, and you will pay them but no group can open your pandora box because they just know one code of it and only you (the owner) have access to both solved codes. I am looking for THE OWNER of blockchains data who pay the system for solving such shitty math equations.

  3. I’m looking for a good video to help a friend of mine learn about blockchain . I’m not a noob by any means and I can tell you I had a hard time understanding what the hell you were talking about . After only 1 minute the average person would most likely abandon your explanation to never return again . You have done an injustice to the space and the progress we all hope to achieve . Terrible !

  4. makes sense until 4:40 then it all falls apart as an explanation. what is a client? what are transactions submitted to? to a node? where do nodes pick transactions from? is it one transation per block? now it looks like it's more than one in a block. what are you validating if you are still picking the next block to add? what does unlocking the position of the next block mean? that a node gets to pick? is the position a number, it sounds like there is more to it. It sounds to me you can only understand from this video if you already know.

  5. This is utterly useless to me, I'm afraid. I stopped watching after a couple of minutes, totally lost in incomprehensible technicalities and terminology. Can you recommend an explanation that starts at a much lower level, please? Why use blockchain as opposed to other 'ordinary' methods? What are the advantages, if any, of using blockchain? What alleged problems does it avoid or solve? What use is it, if you need a degree in IT to understand it?

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