. . . . . "DOIs required for collections, e.g. yearly data sets." . . . . "2022-12-31"^^ . "2022-01-01"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "f9kHM9/wlhyNPQT8p0tr+6w3QAirKbmPOeXgVCbW9GITynf8o+XRviy/3TAIzUrnMG7SVF6GiUHtfrkNMdiVT7XwImgMbaPzjAIqYKFAbs9E93UnPcX8VprLN3EO8YPkzWcCkYwoiK7xNVJKA5a3vbvvUJPh/73PTFkAgN0WefU=" . . "2023-04-25T00:36:22Z"^^ . . . .