Private and public blockchains. What is the difference?
2019-12-03Business,Hyperledger,Fabric,fabricENGLISH
Public blockchains can be used by everyone. Private blockchains can be used by selected group of participants. This is the most basic and overall difference between public and private blockchains. What is the real difference based on?
What are the concrete differences between public and private blockchains?
Who can be the user of public and private blockchain?
I invite you to read the article.
0 Comments5 Minutes
Do we need “closed” blockchains?
2019-08-14Business,Blockchain,blockchain,Hyperledgerhyperledger,#business,#permissioned,ENGLISH
The blockchain technology spreads. Mainly this can be visible in the context of cryptocurrencies popularity gain (which can be noticed by rising Bitcoin price). Blockchain became useful or even created plenty of new branches like tokenization which who knows - maybe will revolutionize the investments and the way we represent the ownership in general.
0 Comments3 Minutes
Hyperledger Fabric chaincode performance. Node.js vs Java.
2019-06-24Blockchain,Software Development,dapp,blockchain,Hyperledgerhyperledger,Fabric,fabric,chaincode,ENGLISH
Choosing the right technology can impact development process and among the others: the performance of the solution. I would like to compare the performance of the Hyperledger Fabric chaincode implemented in the Node.js and Java.
0 Comments4 Minutes
The rise of Hyperledger blockchain army.
2019-06-12Blockchain,blockchain,Hyperledgerhyperledger,ENGLISH
Entering the Blockchain world you can be sure, that sooner or later you will hear about the Hyperledger. Even if the blockchain technology is most often related to Bitcoin or Ethereum as the grandfathers of that technology, Hyperledger is very important player which grows stronger very fast.
0 Comments4 Minutes

My name is Przemek.
I do blockchain.
I would like to share with you my knowledge and experience from the journey through the crypto world.
I am engineer, developer and enthusiast of blockchain. You can find here technical expertise and analysis of the cryptourrencies and blockchain solutions.
Be my guest.
Follow me on Twitter.
Follow me on Medium.
How to deploy chaincode in Hyperledger Fabric 2.0?
2020-02-06Hyperledger,Fabric,ENGLISH#fabric #hyperledger #chaincode
With the new release of Hyperledger Fabric 2.0 the lifecycle of chaincode has been changed. It implies also the changes in the chaincode deployment process - what basically means that commands used to deploy chaincode in < 2.0 release (no matter if using peer binary or SDK) will not work. In this article I show how to deploy chaincode to the Hyperledger Fabric 2.0.
0 Comments5 Minutes
Private and public blockchains. What is the difference?
2019-12-03Business,Hyperledger,Fabric,fabricENGLISH
Public blockchains can be used by everyone. Private blockchains can be used by selected group of participants. This is the most basic and overall difference between public and private blockchains. What is the real difference based on? What are the concrete differences between public and private blockchains? Who can be the user of public and private blockchain? I invite you to read the article.
0 Comments5 Minutes
Do we need “closed” blockchains?
2019-08-14Business,Blockchain,blockchain,Hyperledgerhyperledger,#business,#permissioned,ENGLISH
The blockchain technology spreads. Mainly this can be visible in the context of cryptocurrencies popularity gain (which can be noticed by rising Bitcoin price). Blockchain became useful or even created plenty of new branches like tokenization which who knows - maybe will revolutionize the investments and the way we represent the ownership in general.
0 Comments3 Minutes
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My name is Przemek.
I do blockchain.
I would like to share with you my knowledge and experience from the journey through the crypto world.
I am engineer, developer and enthusiast of blockchain. You can find here technical expertise and analysis of the cryptourrencies and blockchain solutions.
Be my guest.
Follow me on Twitter.
Follow me on Medium.