How to use social media without exposing your personal data — Normal social media platforms use centralisation of personal data, and it’s looking like a really bad thing for individuals, and indeed, society as a whole. However, we can make a decentralised social media platform to address the issues. Please see my article “Protect Your Social Media” for more information and…

How can you protect your personal data if organisations store it in central repositories? — I’ve got my personal data with me. It’s my email address, telephone number, home address, passport etcetera. Either I know what my personal data is, for example my mobile phone number, or I can produce it when required, for example my passport. My problem, and yours too I expect, is…

What difference does it make if Personal Data is Distributed instead of Centralised? — My personal data is my email address, telephone number, home address, date-of-birth, sex, etcetera. Basically, any data that is pertaining specifically to me. The practice of organisations keeping many individuals’ personal data in one place for easy processing is personal data centralised by organisations, normally called centralised data.

It’s time to transfer the control of personal data from organisations to people. — Summary In today’s world, our personal data is usually stored and controlled by organisations. In tomorrow’s world, personal data will be stored and controlled by its owners, us. Discussion What is personal data? It’s our email address, telephone numbers, home address, bank account details, location, preferred hot drink, basically any data pertaining…

This article discusses the ideal location to store personal data. — Discussion Where is the ideal location to store personal data? In this article, we discuss the person that owns the personal data and the organisation that uses the personal data. Other models are available. Each organisation interacts with multiple people:

This article discusses Solidity smart contracts sharing common data using libraries. — Introduction In our article “Smart Contracts Sharing Common Data”, we described why and how Solidity Smart Contracts share common data. However, the technique used to share common data amongst Solidity smart contracts is also applicable to Solidity libraries. …

This article discusses why and how some Solidity smart contracts share common data. — There are many possible models of interaction between multiple smart contracts. In the example for this article, we consider a simple Producer to Consumer model, so that we can focus on the theme of sharing common data:

This article considers using value arrays to improve sorting in Solidity, the defacto smart contract language for the Ethereum blockchain. — Background In my article “Sorting in Solidity without Comparison”, I compared various sorting techniques on Solidity memory arrays. In summary, my conclusion, according to the provided code, data and tests, was that the Unique Sort on dynamic uint memory arrays was most suitable for my particular application. …

We need our smart contracts to handle accounts with multiple roles. What is the most efficient way of doing that? — Accounts and Roles — Background During the development and testing of Datona Lab’s Solidity smart data access contracts (S-DAC), we often need to handle accounts with multiple roles, such as contract owner and data owner, or data auditor and data regulator. In the examples for this article, we investigate whether using dynamic value arrays, or…