Cargo Cult veldexperiment

Cargo Cult veldexperiment NRC schreef onlangs in hun redactioneel commentaar: Interessanter is de benadering die de Nederlandse denktank Sustainable Finance Lab (SFL) deze maand suggereerde. Nederland is volgens het SFL bij uitstek een geschikt land om te experimenteren met een door de centrale bank gecontroleerde digitale munt, omdat het gebruik van cash in ons land… Continue reading Cargo Cult veldexperiment

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Privacy, proportionaliteit en subsidiariteit

Privacy, proportionaliteit en subsidiariteit Onderstaande is een fragment uit de brief die ik in januari 2019 gestuurd heb naar Minister Hoekstra (Financiën) via de internet consultatie Implementatiewet Wijziging Vierde Anti-Witwasrichtlijn. De gehele brief is hier te lezen. De voorgestelde wet is nog steeds in behandeling. Uit recente voorstellen zoals het delen van identiteitsgegevens van cryptocurrency… Continue reading Privacy, proportionaliteit en subsidiariteit

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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 carcinogen. Cacao was too clearly associated with oppression. These… Continue reading A Crime on Testnet

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Van wie is deze bitcoin?

Van wie is deze bitcoin? This post is in Dutch. The short English version is in this Twitter thread: You may want to turn off transaction email notifications, and ask your favorite wallet provider to use PGP. In general email notications are a big privacy / security risk; they form a detailed record of stuff that's… Continue reading Van wie is deze bitcoin?

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Bitcoin Core Wishlist

Bitcoin Core Wishlist I started to contribute code and reviews to Bitcoin Core a few months ago and gradually accumulated lists of stuff I’d like to see. Some of these I can do myself, others are still beyond my level of expertise, still others might be terrible ideas and never happen.

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Decoding a BIP-70 Payment Request

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 included. If the fee isn’t sufficient to allow the transaction to… Continue reading Decoding a BIP-70 Payment Request

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