Bitcoin is about being in control of your money. For this to be really true, all the components have to be trustable. It is worth nothing if the application is fully open source, when it is run on a compromised platform. On the desktop this is easy. Linux distributions have been well supported, and more… Continue reading Lightning wallet for ubports
Author: ulrichard
Lightning operated chocolate arcade
After the Covid lockdowns are only a faint memory, conferences are back again. Last October I was at the Lugano PlanB Forum with lots of familiar speakers. The talks were good, but not as technical as I would prefer. And last month I was at the Swiss Bitcoin Conference in Kreuzlingen. The talks there were… Continue reading Lightning operated chocolate arcade
Two decades of paragliding
According to my flight log book, it was the first of April 2002 when I had my first flight on a paraglider as pilot in control. Prior to that I did a tandem flight as the passenger and a few days at the training hill. Of course it all started much earlier. I wanted to… Continue reading Two decades of paragliding
Rest in peace Seppel & Hoppel
Yesterday I had to bury the beloved pet bunnies of our kids. But let’s start from the beginning. While I had plenty of pets in my childhood, my wive was less lucky in that regard. So she was especially eager to enable that possibility for our kids. Before they went to school, we bought a… Continue reading Rest in peace Seppel & Hoppel
Creating proof of reserves for an Electrum wallet
In my last post I promised to write about how you can produce a “proof of reserves” for your own wallet including hardware wallets. So, here we go. First you need an electrum multisig wallet that involves at least one hardware wallet. I won’t go into the details of how to construct this. Recently I… Continue reading Creating proof of reserves for an Electrum wallet
Proof of Reserves
As part of my work at SEBA Bank, I recently implemented a “Proof of Reserves” feature for our cold storage. The idea behind “Proof of Reserves” is that custodial businesses holding cryptocurrency should create attestations as to their reserves. Essentially proofing that they indeed hold, and have control over the coins that customers deposited. We… Continue reading Proof of Reserves
Blaming the healthy
More and more often I hear claims that the unvaccinated occupy beds in hospitals and shall somehow be solely responsible for spreading the virus. In reality 3% of hospital beds are currently occupied by Covid patients, and about half of them are fully vaccinated. 22% of beds in the supposedly overcrowded hospitals are empty. In… Continue reading Blaming the healthy
The flood came close
The last big flood around here was in 2005. Back then I lived in Schwyz and worked in Unterägeri. I could not go to work for three days because all the roads were closed due to floods and mud slides. During this event, the apartment complex that we have been living in for the last… Continue reading The flood came close
No internet at the Dolder Grand
Today was our wedding anniversary. We usually celebrate this with a meal in a nice restaurant. Last year we went to the Swiss Chalet in Merlischachen. It was very nice and delicious. The reason we went there was that they accept payments in Bitcoin. So I decided to make this a tradition. Thing is, The… Continue reading No internet at the Dolder Grand
a decade of accepting Bitcoin for paragliding
Today marks the 10th anniversary of an important blog post. It was the announcement that I started accepting Bitcoin for paragliding tandem flights. I had interest in the nascent internet currency for a couple of months prior to that. And I felt that what was missing were places where people could spend their coins. Only… Continue reading a decade of accepting Bitcoin for paragliding