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Imprint / Impressum

Angaben gemäß § 5 DDG (Digitale-Dienste-Gesetz) und § 18 Abs. 2 MStV

Operator

Hadamard Corporation
8206 Louisiana Blvd NE, Ste A #2316
Albuquerque, New Mexico 87113, USA
Entity ID: 7388314

German Branch (Zweigniederlassung)

Hadamard Corporation
c/o Matteo Ludwig
Rudolf-Hahn-Straße 67A
53225 Bonn, Germany
Trade Register: AG Bonn, HRB 29251
VAT ID (USt-IdNr.): DE449785620

Contact

Email: info@hadamard.com
Phone: +1 717 479 4212

Person Responsible for Content (§ 18 Abs. 2 MStV)

Matteo Ludwig, at the German branch address above.

Scope

This imprint applies to bb84.com (this site), the BB84 Wallet app (iOS, Android, web), and the BB84 L2 network's public web services (RPC, explorer, status page, ENS gateway). It is the same operating entity as hadamard.com.

Disclaimer

Despite careful content control, we assume no liability for the content of external links. The operators of linked pages are solely responsible for their content. BB84 is an experimental protocol currently operating on the Ethereum Sepolia testnet; see the Terms of Service for the testnet disclaimer and further limitations of liability.

Copyright

All content on this site, unless otherwise noted, is © 2026 Hadamard Corporation. Source code for the BB84 protocol and wallet app is published separately under its own license terms on GitHub.