Legal
Legal notice
Who is behind Blockchain21 and how to reach us.
This translation is provided for convenience. Only the German version is legally binding.
Information pursuant to § 5 DDG
- Provider
- Konrad Klar
- Address
- Stiftsweg 18
13187 Berlin
Deutschland
Contact
- support@blockchain21.net
Pre-launch Messages to this address don’t arrive yet. Until then, you can reach us by post at the address above.
- Other channels
- Contact page
Responsible for content
- Responsible under § 18(2) MStV
- Konrad Klar, Anschrift wie oben
Consumer dispute resolution
We are neither willing nor obliged to take part in dispute resolution proceedings before a consumer arbitration board (§ 36 of the German Consumer Dispute Resolution Act, VSBG). We do not conclude contracts with consumers through this website.
About our activity
Blockchain21 is an editorial information service about Bitcoin. We do not provide crypto-asset services: we do not accept orders, we do not hold crypto assets or access credentials, and we do not give personal investment recommendations. You make any purchase yourself, directly with the respective provider. More in our risk notice.
Advertising and partner links
We are funded through partner links that we label as advertising (asterisk * or “Ad*”). How this works and which providers we work with is explained on How we are funded. The criteria we use to select providers are described in our methodology.
Links to other websites
We are responsible for our own content under the general laws. The operators of linked websites are responsible for their content. We check links before we publish them. If you notice incorrect, outdated or unlawful content behind one of our links, please let us know – we will review it promptly and remove the link if necessary.
Copyright and licences
Texts, graphics, illustrations and example screens on this website are protected by copyright and were created by Blockchain21 unless stated otherwise. Please ask us before reusing content. Short quotations with attribution are of course permitted within the legal limits.
- Icons: Lucide (ISC licence)
- Fonts: Schibsted Grotesk, Source Serif 4 and IBM Plex Mono (each SIL Open Font License 1.1) – served locally from our own server
- Example screens: they show made-up apps such as “Sample Exchange” or “Example Wallet”, not real provider interfaces.
- Image credits: the photos in the “Blockchain21 collection” come from Unsplash, Pexels and Wikimedia Commons (free licences). Creators, sources and licences are listed in the image credits on “About us”.
- Market data: public interfaces of mempool.space, Bitstamp, Kraken, Coinbase, Blockstream and blockchain.info – details in our methodology
Company and product names are trademarks of their respective owners. Mentioning them does not mean that these companies endorse or have reviewed our content.