. . . . . "DOI is used to link metadata with data." . . . . "2050-01-01"^^ . "2023-02-28"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "Vorb2FgJO9eFIublOpK6ffDt3Ih12Y/yD9K4TWl1gAzByag1mIQofWbkX3YARYfGDhEQgCoEVztkEnGJ/IMUeEkwpRiGzi0MFP069BMag9Knlt/IBUQGm9J/Z/wj9m0flzJxU58oRxYhOgY7hZpk3GCJDDnHtixeT7QmYKHvvXg=" . . "2023-07-04T12:23:27Z"^^ . . . .