Extprint3r Verified Online
The namesake of the protocol is no accident. The rise of distributed 3D printing has led to a crisis of provenance. With the extprint3r verified system, a design studio can sell digital files, and the buyer can prove they printed a specific number of units. Each print auto-verifies its own authenticity.
As of late 2025, the following material categories have the most verified options: extprint3r verified
Avoid "verified" woodfill or metal fill filaments—currently, the consortium has not finalized a standard for these exotic blends. The namesake of the protocol is no accident
Using XRF analyzers, the lab checks for lead, cadmium, and mercury. The limit is 0 ppm for lead in children’s product categories; otherwise, under 50 ppm. the lab checks for lead