The clash of two worlds – kitties and Wall Street brokers

This has certainly been a crazy week in the cryptocurrency landscape. I keep writing about this topic, because it truly fascinates me. For years, this crypto thing has been looked at with pessimism, laughed at, and misunderstood. Cryptocurrencies are still misunderstood, but now suddenly both aspiring digital cat owners and Wall Street brokers alike, wants … Continue reading The clash of two worlds – kitties and Wall Street brokers

Bitcoin is not money

It’s sometimes hard to frame conversations around cryptocurrencies like Bitcoin and Ether. That’s largely down to the fact that no one can truly express what these things are, and what they mean to humans and our society. These are entirely new organisms that lack precedence. Is Bitcoin money? Is Bitcoin a network or a protocol? … Continue reading Bitcoin is not money

How governance works for the Ethereum blockchain

It’s a common misconception that the creator and/or the developers are in sole control of the blockchains they create, such as Bitcoin or Ethereum. But in reality governance of blockchains involves different parties that act according to whatever incentive they have. In the case of the Ethereum network, it consists of various participants that all … Continue reading How governance works for the Ethereum blockchain

Securing your digital home – part 3: keys and other secrets

In part 2 of this series we walked through the thought process around your digital ID. Once that’s established, you need to protect the keys and other secrets attached to this identity, such as passwords and cryptographic keys. In this blog post I will write about my own personal approach to this with some recommendations. … Continue reading Securing your digital home – part 3: keys and other secrets

Fungibility – why Bitcoin or Ether aren’t the most democratic currencies yet

Fungible currency is, or must be, a cornerstone of a democratic and free society. In this blog I will explore what a fungible currency is and why Bitcoin and Ether currently are lacking in this respect. What does “fungible” mean? Goods or items in a collection are “fungible” if all of the items have the … Continue reading Fungibility – why Bitcoin or Ether aren’t the most democratic currencies yet

Simple yet comprehensive explanation of blockchains

I’ve been writing about blockchain technology and Ethereum for a while on my blog. But as these technologies are becoming wider spread I’ve found it challenging to explain these concepts to people not familiar with them. There’s a few layers of technology that are important to understand. When talking about blockchains you often hear about … Continue reading Simple yet comprehensive explanation of blockchains

Building dapps on Ethereum – part 5: Ethereum Name Service and Swarm

A common usability problem with cryptographic systems like blockchains is that accounts, smart contracts and content on the blockchain are addressed with hashes like 0x7eF963588706a8d39D481634eB46f5c54A04c584. These addresses are easy for machines to securely verify but hard for humans to type and remember. And anything that’s difficult for humans creates vulnerability vectors, like phishing attacks by … Continue reading Building dapps on Ethereum – part 5: Ethereum Name Service and Swarm

Building dapps on Ethereum – part 2: smart contracts

This is the second post in my series about building decentralised apps (dapps) on Ethereum. In this post we will cover installation and configuration of the development environment for coding, compiling and testing smart contracts. You’ll also learn how to set up two different Ethereum blockchains on your local computer, firstly with testrpc for automated … Continue reading Building dapps on Ethereum – part 2: smart contracts

Building a Central Bank – Part 2

Three weeks ago I played around with Ethereum and was wondering what I can do with it (Building a Central Bank – Part 1). Meanwhile Dick wrote blog posts about Free lunch, blockchains (benefits and costs) and dapps.  He scribbled an example how smart contracts can help to organise a project like iron blogger in a …

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