MD Identifier2

From Earth Science Information Partners (ESIP)
Elements Definition and Recommended Practice Examples
1 authority 0..* Citation to person or party responsible for maintenance of the code value.
Example is needed
2 code 1 The alphanumeric value that uniquely identifies the referenced resource. When the identifer has a permanent URL, then use the gmx:Anchor field instead of gco:CharacterString field.
4326