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

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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