Turn your self hosted Lightning Network node to public in 10 minutes

In April 2019 I decided to completely stop developing my cryptocurrency project ending entire year of full time work in failed tech startup which I wanted to create. During that time:

I spent about 2200 hours hardcore coding, writing, meeting, pitching, calling and everything else related to building a startup - in that case a software product I've implemented ~ 80 000 lines of code which never experienced production usage. Registered company which did not gained any profit only expanses. Finally spent about 10 000 USD on life living costs without any income;

I would like to share my story. I believe it may be an inspiration and bring some answers for anyone who dreams about running own startup. During that time I've done tons of mistakes but I've also achieved a lot of milestones. This was a very interesting adventure and I believe anyone can enjoy that chronicle.

I invite you for the story of a dream and a failure.

The recent news about 1400 bitcoins loss caused a lot of buzz: the amount of Bitcoins worth about 16.3 million $, not any kind of exchange hack, all happened using Electrum wallet - one of the oldest and still very popular Bitcoin wallet.
I share the lessons which could be learned from that story.

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.

Truffle Suite is the tool pack dedicated to Ethereum developers (focusing on smart contracts). That very actively developed project is currently one of the most popular frameworks for implementing, testing and running Ethereum based decentralized applications.

In this article:

I will describe the Truffle Suite tools;
I will describe and use the main tool of the suite - Truffle (name of the tool is the same as suite name);
I will initialize example project Pet Shop - implementing first features and corresponding tests;

zk-SNARK (Zero-Knowledge Succinct Non-Interactive Argument of Knowledge) is the protocol of zero knowledge proof. ZCash cryptocurrency will be the one of first opened blockchain projects, which will utilize the implementation of this fascinating algorithm in the mechanics of blockchain. Zero knowledge proofs have huge potential and can be used or even revolutionize a lot of data exchange processes.

In this article I explain:

what is the zero knowledge proof;
what is, how works and what kind of math mechanics are hidden behind zk-SNARK.

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.