Thoughts on Bitcoin, Ethereum and other interesting projects.

Ik hou rechtspraak.nl in de gaten op uitspraken die iets met Bitcoin te maken hebben. De site publiceert slechts een selectie van alle zaken, waar ik in september 2018 al eens over schreef in het artikel Van wie is deze bitcoin?

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Dec 28, 2018

A Crime on Testnet

On a warm summer day I crave a frappuccino. Unfortunately drugs such as caffeine, sugar and cacao were declared illegal decades ago. This happened because young unemployed college graduates often felt triggered by loud caffeinated rich people. Sugar was causing mass obesity and was also a…

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Sep 5, 2018

Van wie is deze bitcoin?

This post is in Dutch. The short English version is in this Twitter thread:

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Jun 28, 2018

Bitcoin on an Orange Pi (using Armbian)

There are some good articles on how to run a Bitcoin Core full node on a Raspberry Pi. But…

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May 10, 2018

Bitcoin Core + Lightning + Rails on AWS

Recently I’ve been working on a project code-named Matreon. It’s like Patreon, but for the…

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Jan 4, 2018

Decoding a BIP-70 Payment Request

I was trying to understand BIP-70 Payment Requests a bit better, mainly because I am confused by BitPay’s claim that they can somehow block “mistaken” transactions:

We can also analyze transactions to make sure an adequate bitcoin miner fee is…

On Fees

When sending less than €1,000 of Bitcoin it’s worth paying attention to fees, but keep mind that your payment is competing with transactions that move €100,000 on equal terms. Transactions are charged per byte, not as a percentage of the amount. But willingness to pay is obviously a percentage of the amount.