How I lost 1 year of life doing failed crypto startup

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…


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Lessons learned from 1400 Bitcoins loss

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…


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How to deploy chaincode in Hyperledger Fabric 2.0?

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…


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Truffle Suite – Ethereum developer toolbox: Truffle.

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…


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Truffle Suite – niezbędnik developera Ethereum: Truffle.

Truffle Suite to zestaw narzędzi developerskich dla programistów tworzących projekty w Ethereum (smart contracty). Ten bardzo aktywnie rozwijany projekt, jest aktualnie jednym z…


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Understanding zero knowledge proofs and zk-SNARK.

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…


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Zrozumieć dowody z wiedzą zerową. Wyjaśniam działanie zk-SNARK.

zk-SNARK (ang. Zero-Knowledge Succinct Non-Interactive Argument of Knowledge) to protokół "dowodzenia z wiedzą zerową" (ang. Zero Knowledge Proof). Kryptowaluta ZCash będzie…


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Blockchain publiczny i prywatny. Co je konkretnie różni?

Blockchain publiczny, to taki z którego korzystać może każdy. Blockchain prywatny to taki, którego uczestnikami są tylko wybrani. To najprostsza i bardzo ogólna różnica między…


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Private and public blockchains. What is the difference?

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…


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Tworzę sidechain w Lisk. Opis, analiza i wnioski.

Lisk umożliwia stworzenie aplikacji opartej o własny blockchain w języku programowania Javascript. Z chwilą opublikowania Alpha SDK możliwe stało się prototypowanie pierwszych…


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