an independent collection of blockchain knowledge and news

May 17, 2020

Blockchain frees itself from bullshit

In the 2017/18 Crypto Hype there were many PoCs and product ideas, where I asked myself why they were realized with blockchain. If the word blockchain had been replaced by database in the projects, the ideas would still have made sense and would have been much…

Ivica Aračić

Jan 2, 2018

Is it a blockchain or is it a DLT?

In various discussions I often hear people saying “But that’s not blockchain! That’s DLT!”. This sounds like blockchain and DLT would be two totally different things, while in fact, blockchain is a specific implementation of a DLT. What most people actually mean is…

Andreas Albrecht

May 7, 2017

Blockchain vs. Database

When should I use blockchain and when a database?

Andreas Albrecht

Feb 5, 2017

Marketing usecase based on blockchain

Liverpool gets its own currency

The company colu from Tel Aviv has generated a local digital currency for Liverpool. Local currencies are not new. Many municipalities use some kind of local coupons to buy in the…

Ivica Aračić

Nov 27, 2016

A generic “Claim and Endorse” Contract

Did you already endorse someone at LinkedIn? For instance, someone claims that he knows C++ and you endorse this claim because you know it’s true.

A large number of processes can be modelled in this way:

Ivica Aračić

Nov 13, 2016

Rebuilding Ripple on Ethereum

Ripple is a P2P payment network with an integrated foreign exchange market. It supports any possible currency. In it’s core it is based on a public distributed ledger containing liabilities between individuals and organisations ( IOUs). The network depends on the trust…