Today Algorand TestNet became public, so now anyone can join and safely start getting hands dirty since this is the test chain. To start, you can jump right into the Developer documentation which has step-by-step explanations to install an Algorand node and information about the node CLI interface. Apart from…

Securely scaling blockchains is a significant problem to solve. Failing to do so could compromise real-world impact of public-blockchain technology. Here I’ll give a light-talk about Fraud Proofs and how they can help, but before some little introduction into scalability. Blockchain scalability mini-review If we dig a little in the numbers, we usually…

Hash functions are used all over computer science, but I want to mention they usefulness within probabilistic data structures and algorithms. We all know that data structures are the building blocks of most algorithms. A bad choice could lead to hard and inefficient solutions instead of elegant and efficient ones. …

In part 1, we discussed what is immutability, in which circumstances it’s important, and how all this relates to blockchains. Further discussion about blockchain immutability involves talking about specific implementations. In this part, I’m going to talk about public and a private blockchain; to be specific, Bitcoin and Hyperledger Fabric…

Immutability is a core value of a blockchain implementation. Before talking about technical details about this matter in public and private blockchains, it may be useful to step back and think about what does it mean and why it’s important. What does immutability mean? Being as literal as possible immutability means that something can’t…