Beginning with 2019 graduates, Universidad Nacional de Colombia offers online verification of an electronic copy of the degree (título) through eTítulo:
https://www.etitulo.com/validate
The document can be verified either by entering the verification code (Código CSV) from the document or by scanning the QR code.
This is in addition to this institution's online verification of transcripts mentioned in a previous new item:
https://theconnection.ece.org/NewsItem/1478
eTítulo is used by a number of universities in Colombia, the Dominican Republic, and Spain to issue and verify electronic copies of their títulos.