. . . . . "DOI is used to link metadata with data." . . . . "2050-01-01"^^ . "2023-02-28"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "P2Qc/+0AvbR6nlKvfYKdRPMtCTZDXcKFs/b9NWFiEWv0VgPDzOn6F9xTWOhyd0WJdW0MEprL3DAnjNlCWP79D+NiFgrF9Yw+Lfn/TISHyZZafyS/g9X45VIRaDhm0bDaJVEu0mNLaScXq3kbe20Tv9SnM8aM4DrsgutAVbJC92o=" . . "2024-01-16T20:07:55Z"^^ . . . .