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About COLOP Verification App

Feel confident about the authenticity of an important document, regardless if it is your screen or printed on paper. Demand the issuer to seal the document with the COLOP e-mark secure solution.
With this Verification app, you can verify the seal and its context within seconds. Retrieve all the following details from a blockchain database:
- Authorized Organization
- Stamped by
- Stamp Device ID-No.
- Stamped at Location
- Stamp date, time, number
- Stamp notes
- Document scan