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        <EOYAmt>285466</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>52050</BOYAmt>
        <EOYAmt>96806</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <TotalAssetsGrp>
        <BOYAmt>1360977</BOYAmt>
        <EOYAmt>1520039</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>58967</BOYAmt>
        <EOYAmt>64120</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>493137</BOYAmt>
        <EOYAmt>513158</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>552104</BOYAmt>
        <EOYAmt>577278</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>808873</BOYAmt>
        <EOYAmt>942761</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>808873</BOYAmt>
        <EOYAmt>942761</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1360977</BOYAmt>
        <EOYAmt>1520039</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>133888</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleC documentId="990C">
      <SubstantiallyAllDuesNondedInd>false</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>true</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>false</AgreeCarryoverPriorYearInd>
    </IRS990ScheduleC>
    <IRS990ScheduleF documentId="990F">
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Europe including Iceland and Greenland</RegionTxt>
        <OfficesCnt>1</OfficesCnt>
        <EmployeeCnt>1</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Program services</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>See supplemental inf</SpecificServicesProvidedTxt>
        <RegionTotalExpendituresAmt>874976</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Europe including Iceland and Greenland</RegionTxt>
        <OfficesCnt>1</OfficesCnt>
        <EmployeeCnt>1</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Conducting board meetings</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>1966</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>2</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>2</SubtotalEmployeesCnt>
      <TotalOfficeCnt>2</TotalOfficeCnt>
      <TotalEmployeeCnt>2</TotalEmployeeCnt>
      <SubtotalSpentAmt>876942</SubtotalSpentAmt>
      <TotalSpentAmt>876942</TotalSpentAmt>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Supplemental Information (Part V, Other)</FormAndLineReferenceDesc>
        <ExplanationTxt>Part I, line 3, column (e):Specific Types of Program Services in Region: Members govern the Digital Object Identifier System, setting policy, choosing serviceproviders and overseeing operation of the System.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Members or stockholder classes and rights Part VI line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization is an international membership corporation. All corporations, other business entities, governmental agencies,not-for-profit organizations, academic institutions and other interested parties or individuals who, as determined by the Corporations Board of Directors, support the goals and subscribe to the purposes of the Corporation and commit to pay the applicable level of annual dues of the Corporation, are eligible to apply for membership. Members are selected and admitted by majority vote of the Corporations Board of Directors.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Member election for additional members Part VI line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Membership in the Corporation is divided into 4 classes, designated Charter Members, General Members, Registration Agency Members, and Affiliate Members. Charter Members, General Members, and Registration Agency Members,(each voting separately as a class), are entitled to elect the number of Directors to the Board of Directors as set forth in, and in accordance with the procedures specified in, the By-laws of the Corporation. In no event shall any class of Member, other than Affiliate Members,have fewer than 1 seat on the Corporations Board of Directors. Affiliate Members shall not have any voting rights or privileges on any matter (including, without limitation, the election of Directors), unless otherwise provided by the By-laws or by vote of the Board of Directors.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Directors may request a copy of the Form 990 for review prior to filing, but it is not automatically provided to the Board.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>CEO executive director top management comp Part VI line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>There is no compensation provided to officers or directors. The Organization has no employees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The governing documents and financial statements are not available to the public.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>