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The European Student Identifier can take on one of two forms, depending on the qualifiers needed to make a given student code globally unique:
ESI with nation-wide (or region-wide) scope student code:
urn:schac:personalUniqueCode:int:esi:<country-code>:<code>
ESI with HEI-wide scope student code:
urn:schac:personalUniqueCode:int:esi:<sHO>:<code>
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