Código PHP:
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyQualifiers|xades:SigPolicyQualifier|xades:SPURI','h_t_t_p_s://w_w_w.batuz.eus/fitxategiak/batuz/ticketbai/sinadura_elektronikoaren_zehaztapenak_especificaciones_de_la_firma_electronica_v1_0.pdf');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat',True,'ObjectReference','#Reference-7e6f3481-4acc-47de-90fd-67878ad15e8e');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description','');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier',True,'Qualifier','OIDAsURN');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier','urn:oid:1.2.840.10003.5.109.10');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description','');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType','text/xml');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding','');
CkXmlDSigGen_AddObject(gen,'',CkXml__getXml(object1),'','');