authentication

au·then·ti·ca·tion
UK: /ɔːθˌɛntɪkˈe‍ɪʃən/   US: /ɔˌθɛntəˈkeɪʃən/
nafnorð
  • staðfesting
  • löggilding
  • auðkenning

Samheiti: assay-mark, certification, hallmark