A few weeks ago, I received a book with the collected writings of Georg Cantor, edited by Ernst Zermelo and entitled “Georg Cantor: Gesammelte Abhandlungen: Mathematischen und Philosophischen Inhalts.” It is a reprint of the original from 1932. I had read some Cantor before, but having all of his writing…


TLDNR — Reintroducing the use of peer-to-peer credit on a large scale, with governments partially guaranteeing the IOUs being issued, could help mitigate the cash crisis many companies face because of COVID-19.

In a short LinkedIn article, entitled IOUs as tools of economic autonomy, I recently noted that direct credit…


I have been involved in blockchain for close to five years now, and was a co-organizer of what was probably the first “serious” blockchain conference in Luxembourg in the summer of 2015, focusing mostly on researchers and academics rather than evangelists. I saw the potential of this technology, but was…


Isekai (https://github.com/sikoba/isekai) is a verifiable computation framework that will allow to work with several programming languages and verifiable computation systems while using a single code-to-circuit module. This article provides a quick and basic intro to installing isekai on Windows.

Install Ubuntu on Windows

isekai is written in Crystal, which has not yet been ported…


This month, we held an isekai workshop and our new CTO Guillaume Drevon has started integration testing of isekai. Development of the Sikoba mobile app is proceeding as planned, with a first “internal” release due in the second half of March.

websitetwitterfacebookreddit •…


Zero-knowledge rendering of “Isekai” © Klaudia Kampa

Isekai is a verifiable computation framework that will work with several programming languages and verifiable computation systems while using a single code-to-circuit module. Isekai is being developed by Sikoba Research using Crystal, with the support of Fantom Foundation. …


TL;DR — in the context of a state machine replication system, so-called “smart contracts” are user-defined components of the transition function. The idea that they must be immutable does not make much sense.

State machines

The essential part of a state machine replication system is the replication mechanism, also called the consensus


In casual use, the word “money” carries a very wide range of meanings. Let’s introduce a simple vocabulary to help clarify the meanings of this word.

Private property, jewellery and the need of keeping track

For over a million years, and until about 10,000 years ago, our ancestors lived as…


With the rise of crypto-assets, more people are getting exposed to the concept of cryptographic accounts, “wallets”, public and private keys. Also, there are now numerous projects working on identity management and digital ID using cryptography and blockchain technology.

As a human being, you have very strong assurance that, as…


So you want to get filthy rich? No problem pal, just send a dollar worth of bitcoins to my good friends at BitWise, they will take care of you. Make sure to quote my very special discount code SUCKERRR and they will even credit your bitcoin sending fees.

Too good…

Alex Kampa

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store