-export const RESOURCE_UUID_PATTERN = '.{5}-.{5}-.{15}';
-export const RESOURCE_UUID_REGEX = new RegExp(RESOURCE_UUID_PATTERN);
+export const RESOURCE_UUID_PATTERN = '[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{15}';
+export const RESOURCE_UUID_REGEX = new RegExp("^" + RESOURCE_UUID_PATTERN + "$");
+export const COLLECTION_PDH_REGEX = /^[a-f0-9]{32}\+\d+$/;