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«The Cloud» does not exist
What is cloud anyway? And why are not all clouds the same? An overview to create clarity. The topic of the cloud is currently on everyone’s lips again, and decisions are pending in many places. Clarity is essential for assessing the impact on individuals, the economy and society. That’s why we’re starting a small series…
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What is an NFT, behind the scenes?

“NFT” is currently on everyone’s lips again, and not only because of Pro Senectute. But what is actually behind the full-bodied promises of the NFT advocates? For more insights on NFTs and the entire blockchain ecosystem, click here. You can also read this text in German 🇩🇪. “NFT” stands for “Non-Fungible Token” and is being…
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The NFT Danger Zone

Susanna Petrin closes her NFT experiment with a dystopia of life after we destroyed our environment: Admiring our NFTs while strolling through the metaverse. I hope we can avert both.
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Blockchain in a nutshell

People often try to claim blockchain use cases without much deliberation. Here is a condensed, quotable version of «Hitchhiker’s Guide to the Blockchain» and «Data lifecycle questions, not only for Blockchains».
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Solana Blockchain: Proof of History analogies

Here are some attempts to compare Proof of History (PoH), as used by the Solana blockchain, with Proof of Work (PoW). Comparisons to real-world activities, such as dice rolling or outer-space rubber-stamp throwing are also included.
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Array Thickening: More can be less
When turning flexible file formats into data structures, the consensus seems to be to avoid using arrays whenever possible. However, more arrays may reduce code and coding errors. A plea against the extinction of arrays.
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CompanyON: Serving as gutSTEIN

Our gift card solution for regional brick-and-mortar stores and restaurants has been successfully used in Stein am Rhein for almost a year. As of today, the local version of our gift card for Stein am Rhein, provided by the regional business association, also has a local name: gutSTEIN. The card has become an important asset…
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Contact Tracing — Quo Vadis?

How much we are all looking forward to returning to normal lives: Meeting friends, hugging family, a cool beer, culture. After more than a year, we really deserve it! However, there are still roadblocks in the form of a bloody virus and the countermeasures. Anyone promising a quick end is hailed as a saviour. (This…

