. . . . . "DOIs required for collections, e.g. yearly data sets." . . . . "2022-12-31"^^ . "2022-01-01"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "HnbyRO4M25tnJk8zWP9Dt3tWdjLTE2ZtNpP+wHyxpQVoi7lqcqnBo9iIKeNC7yYQkxHb7lGzpgjevYYa2UPtxLUCWtkTXz7KSahkny3tfga+ESlLGbjaULfgi4qtUtl6cA15mG8n53qpuWjjqbRAfAxaDkgUkfqBcBpinWgsKnY=" . . "2023-02-22T09:19:52Z"^^ . . . .