Effective date: June 21, 2026
Information pursuant to § 5 ECG and disclosure pursuant to § 25 MedienG.
Roman Sklyarevskiy
CheckCOA
Sole proprietorship / Einzelunternehmen
Pottendorfer Strasse 62
2700 Wiener Neustadt
Austria
Email: [email protected]
Website: https://checkcoa.com
Media owner and publisher: Roman Sklyarevskiy, CheckCOA.
Purpose of the medium: providing certificate lookup, fraud-risk information, collection tools and related educational content for collectors of autographs, graded cards and other collectibles.
CheckCOA is not affiliated with, endorsed by, or sponsored by PSA, Beckett, CGC, SGC, TAG, Wata, Fanatics, Upper Deck, JSA or any other authentication or grading provider. Provider names are used only to identify certificate lookup sources and supported verification workflows.
CheckCOA does not authenticate items. The service retrieves and displays provider records when available and adds Fraud Alert screening against known risky certificate numbers. A clean result does not guarantee authenticity.