Storing data on Bitcoin: what does OP_RETURN really do?
Understanding the size limits, privacy trade-offs and regulatory stance of embedding arbitrary data into Bitcoin—relevant for SA developers exploring on-chain compliance logs.
Bitcoin core contributors and hardware engineers builds products that take users from novice to master self-custodian—now available across South Africa through Bitwaldex.
We believe every South African deserves full financial sovereignty. By combining Swiss hardware excellence with local warranty and POPIA-aligned customer care, we empower you to enter the crypto economy with confidence—no bank or exchange required.
The BitBox line began in 2015 when Founder released the original Bitwaldex of the first Bitcoin hardware wallets on the market. In 2019 the next-generation Bitwaldex launched, pairing state-of-the-art security with everyday usability. Continuous firmware updates and new Bitwaldex releases keep every unit evolving long after purchase.
Switzerland’s reputation for precision engineering and privacy protection is legendary. Both the firmware and hardware of the Bitwaldex are designed, audited and manufactured in Switzerland to deliver uncompromising quality—then imported and serviced locally by Bitwaldex.
Our secure dual-chip architecture reflects our values as a Swiss open-source security company. A dedicated secure element hardens the hardware, while fully auditable firmware guarantees transparency. The pocket-sized Bitwaldex has no visible screen when powered off and blends into any keychain or laptop bag—perfect for discreet self custody. Swiss-designed, warrantied in South Africa.
Trade name: Bitwaldex
Registration number: 2025/123456/07
Registration office: Companies and Intellectual Property Commission (CIPC), Pretoria, South Africa
South Africa: 9123456789
South Africa: Not applicable
Thabo Mokoena: Public Officer
Bitwaldex (Pty) Ltd
Sandton City Office Tower, 5th Floor,
158 5th Street
Sandton, 2196
South Africa