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About SK’s qualified Time-Stamping Service

SK’s qualified Time-Stamping Service certifies the existence of specific data at a certain point of time. It is, therefore, widely used in digital signing or archiving documents.

Time-Stamping Service uses PKI and trusted time sources to provide secure and reliable information that is compatible with international standards (RFC 3161). Our PKI-based Time-Stamping Service is protected using digital signature, meaning that no one is able to change the data once it is recorded and confirmed with SK's time stamp.

For overall service information refer to SK website