. . . . . "SDN has developed metadata directories for organisations, cruises, research projects, databases, that are involved in, or used by, the datacenters when collecting data. In the metadata of the datasets there are refs to these metadata directories (instead of free text!)." . . . . "2019-12-31"^^ . "2019-01-01"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "ZZS22wvqDE9uXqprxnpGseIKoMcrIhxgOdilz6dsKpAOnt5roduO2BG1X0BAQW7iBFVLNETDtBC9vDPw3iNnJzG+DEMAXZn9Caghg+DtYXcan8no2i3i7tzu4xsR+NhLxjPGAhhZ6h8We1KjX16y1bsEpafC1foFu0xr0/i9QrA=" . . "2022-08-04T18:53:31Z"^^ . . . .