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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/RelatedPartiesDetails3" id="RelatedPartiesDetails3">
        <link:definition>870035 - Disclosure - Related parties (Details 3)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/ConvertibleNotesPayableDetails" id="ConvertibleNotesPayableDetails">
        <link:definition>870036 - Disclosure - Convertible Notes Payable (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/ConvertibleNotesPayableDetails1" id="ConvertibleNotesPayableDetails1">
        <link:definition>870037 - Disclosure - Convertible Notes Payable (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/ConvertibleNotesPayableDetails2" id="ConvertibleNotesPayableDetails2">
        <link:definition>870038 - Disclosure - Convertible Notes Payable (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/ConvertibleNotesPayableDetailsNarrative" id="ConvertibleNotesPayableDetailsNarrative">
        <link:definition>870039 - Disclosure - Convertible Notes Payable (Details Narrative)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>870040 - Disclosure - Warrant Liabilities (Details)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/WarrantLiabilitiesDetailsNarrative" id="WarrantLiabilitiesDetailsNarrative">
        <link:definition>870041 - Disclosure - Warrant Liabilities (Details Narrative)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>870042 - Disclosure - Recurring fair value measurements (Details)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>870044 - Disclosure - Equity (Details)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>870046 - Disclosure - Concentration of risk (Details Narrative)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://class.com/role/SubsequentEventDetailsNarrative" id="SubsequentEventDetailsNarrative">
        <link:definition>870047 - Disclosure - Subsequent Event (Details Narrative)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:linkbaseRef xlink:type="simple" xlink:href="class-20260630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="class-20260630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
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  <element name="YiLiuMember" id="class_YiLiuMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="LuoHuiMember" id="class_LuoHuiMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="RevenuesMember" id="class_RevenuesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="PurchasesMember" id="class_PurchasesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="DreamGoIncMember" id="class_DreamGoIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="TimeBasedSubscriptionsMember" id="class_TimeBasedSubscriptionsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="CreditBasedSubscriptionsMember" id="class_CreditBasedSubscriptionsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="SilverRunGroupLLCMember" id="class_SilverRunGroupLLCMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="BottomMember" id="class_BottomMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="MarchThirtyOneTwentyTwentySixMember" id="class_MarchThirtyOneTwentyTwentySixMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="TotalClassBCommonSharesMember" id="class_TotalClassBCommonSharesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="RestOfClassoverDEShareholdersPriorToMergerClassBBMember" id="class_RestOfClassoverDEShareholdersPriorToMergerClassBBMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="CryptoAssetMember" id="class_CryptoAssetMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="BFACSponsorsClassBMember" id="class_BFACSponsorsClassBMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="FounderOfClassoverDEClassAMember" id="class_FounderOfClassoverDEClassAMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
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  <element name="ClassoverHoldingsIncMember" id="class_ClassoverHoldingsIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="ClassoverDEEquityHoldersSeriesAPreferredSharesMember" id="class_ClassoverDEEquityHoldersSeriesAPreferredSharesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="SeriesAPreferredSharesMember" id="class_SeriesAPreferredSharesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="BFACSponsorMember" id="class_BFACSponsorMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="PIPEInvestorMember" id="class_PIPEInvestorMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="TwoZeroTwoFourIncentivePlanMember" id="class_TwoZeroTwoFourIncentivePlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="TwoZeroTwoFiveLongTermEquityIncentivePlanMember" id="class_TwoZeroTwoFiveLongTermEquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="SeriesBConvertiblePreferredStockMember" id="class_SeriesBConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="WarrantLiabilitiesMember" id="class_WarrantLiabilitiesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="ClassACommonMember" id="class_ClassACommonMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
  <element name="ClassBCommonMember" id="class_ClassBCommonMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
</schema>
