Certificates and Provenance
From 1 Sept 2021 I add a nfc tag in the pen and on the certificate used for authenticity and provenance.
This can be checked on the NFC Pen Certificationpage
Reselling to someone else:
Provenance only works when the link is not broken. Be sure to have a reference back to the previous owner on the certificate.
Older Certificates.
The certificates page for paper certificates issued before January 2020 are no longer used. Requests for a new authenticity/provenance certificate can be submitted via the contact form. I will then contact you by email and ask you to send an image of the certificate showing the SKU number and model.