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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A practical example of benefits using blockchain technology

What we will discover in this blog post are some practical examples of how the social economics of any organisation can benefit with more auditable democracy and decentralised processes using blockchain technology. I’m writing this post in the context of the Iron Blogger (IB) organisation, but these concepts can of course scale to almost any … Continue reading A practical example of benefits using blockchain technology

Building a Central Bank – Part 1

Last week I asked if someone has an idea what Ethereum is about. Dick Olsson told me in a comment that it’s possible to create a kind of blockchain for our iron blogger project. What I know so far is the wikipedia article about Ethereum, some content of the website of the Swiss foundation Ethereum.org and a few videos from 2014 …

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