Privacy policy

This policy applies to bitcoin-powerlaw.com. It follows the EU General Data Protection Regulation (GDPR) and the Swiss Federal Act on Data Protection (FADP, DSG).

In short: you can use the site without signing up. We set no cookies, embed no third-party advertising or tracking services, and count visits without cookies and without storing your IP address. That is why there is no cookie banner.

Controller

The controller responsible for processing your data is the operator named in the imprint. Please send questions about privacy to the email address given there.

Visiting the site

When you open a page, your browser sends our server technically necessary information: your IP address, date and time, the address requested, the page you came from, and your browser and operating system. We need it to deliver the site and keep it secure. We run the servers that deliver the site ourselves; they may keep this information briefly in technical logs to detect faults and attacks. We do not combine it with other data and delete it after a short time.

The legal basis is our legitimate interest in a working and secure site (Art. 6(1)(f) GDPR).

Visitor counts without cookies

To see which pages are read and where visitors come from, we count visits with our own cookieless measurement (similar to Plausible Analytics). Each page sends its address and the page you came from to our server when it loads.

We count per day: page views, visitors, views per page, the referring website (only its name, for example google.com) and whether a phone or a computer was used.
To count a visitor only once a day, we derive a check value from the IP address and browser identifier with a random key. The key exists only in the server's memory and is replaced every day; the IP address is not stored. The next day no one can be recognised, and the figures cannot be traced back to anyone.
Nothing is stored on or read from your device. There is no profile across days or websites, and no data goes to third parties.
Visits by search engine bots are not counted.

The legal basis is our legitimate interest in improving the site (Art. 6(1)(f) GDPR). Only the daily totals are kept.

Cookies and browser storage

We set no cookies for visitors. Some settings you choose yourself are remembered in your browser's local storage so they still apply on your next visit:

light or dark design and the currency (EUR, CHF or USD),
Academy lessons you marked as read,
your goal in My Goal, only if you choose to save it locally.

This information stays on your device and is not sent to us. It is strictly necessary for the function you asked for (§ 25(2) no. 2 of the German TDDDG) and therefore needs no consent. You can delete it in your browser at any time.

Calculators, My Goal and the poster

The calculators and My Goal compute entirely in your browser. Your holdings and goals are not sent to our server. A shared link or the poster's QR code carries the figures in the part of the address after the "#", which browsers do not send to the server.

No third-party services

Fonts, graphics and scripts come from our own server. We use no advertising networks, no social media plugins, no embedded videos and no external font services. Our server fetches prices and market data (for example from OKX or Yahoo Finance) itself; your browser does not connect to these providers. If you follow a link to another website, its own privacy policy applies there.

Interfaces for AI agents

The public interfaces (MCP server and data API) need no account and set no cookies. Requests are processed technically like page views.

At the end of every magazine article you can sign up for our newsletter. We use double opt-in: after you sign up we send you an email with a confirmation link, and you are only subscribed once you click it. We store your email address, the language, the article you signed up on, the wording of your consent and when you signed up and confirmed, so that we can prove your consent (Art. 6(1)(a) GDPR). Unconfirmed sign-ups are deleted after seven days. You can unsubscribe at any time with the link in every issue; your address is then deleted. We send the emails through the outgoing mail server of our email provider, which delivers them on our behalf.

Contact by email

If you write to us, we use your details to answer your request (Art. 6(1)(b) and (f) GDPR) and delete them once they are no longer needed for that and no legal retention duty applies.

Disclosure and transfers abroad

We do not sell data or pass it on to third parties unless the law requires us to. The site runs on our own servers; no data is transferred to countries outside Switzerland and the European Economic Area in doing so.

Your rights

You have the right to access your data, to have it corrected, erased or its processing restricted, to data portability, and to object to processing based on legitimate interests (Art. 15 to 21 GDPR, Art. 25 ff. FADP). To exercise them, write to the address in the imprint.

You may also complain to a data protection supervisory authority: in the EU, for example, the authority where you live; in Switzerland, the Federal Data Protection and Information Commissioner (FDPIC).

Changes

We update this policy when the site or the law changes. Last updated: November 2026.