Certification

We provide a series of workshop. For some of them we do offer a certification program.

We issue certificate on:

  • CryptoAML
  • Seed backup
  • Bitcoin fundamentals
  • Bitcoin multisig

How to verify a certificate

Certificates issued by Hodling SA are PGP signed.

Import key

First please import Hodling's certification public key:


curl https://keys.openpgp.org/vks/v1/by-fingerprint/B5C99FE3E04EC7201C373CB5A943C345A7FEFD74 | gpg --import

Scan QR-Code

To verify a certificate you need to scan the QR-Code. It contains a PGP clear-signed message and signature.

On Debian/Ubuntu, install `zbarcam-gtk `


sudo apt install zbarcam-gtk

Or use any QR scanner you prefer. Once you have the content of the QR code, save it locally on your machine. Navigate to that repository. Then type the following to verify the signature:


gpg --verify file_containing_PGP_signed_message_with_signature