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  <xs:element name="AsOfDecember312025Abstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_AsOfDecember312025Abstract"/>
  <xs:element name="LessAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_LessAbstract0"/>
  <xs:element name="PlusAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PlusAbstract0"/>
  <xs:element name="AdministrativeServicesFeePayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdministrativeServicesFeePayable"/>
  <xs:element name="AdministrativeServicesFeeRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdministrativeServicesFeeRelatedParty"/>
  <xs:element name="ListingFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_ListingFees"/>
  <xs:element name="AdjustmentToAdditionalPaidInCapitalContributionForPurchaseOfPrivatePlacementUnits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdjustmentToAdditionalPaidInCapitalContributionForPurchaseOfPrivatePlacementUnits"/>
  <xs:element name="AdjustmentsToAdditionalPaidInCapitalIssuanceOfClassAOrdinarySharesInIPO" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdjustmentsToAdditionalPaidInCapitalIssuanceOfClassAOrdinarySharesInIPO"/>
  <xs:element name="SaleOfPrivatePlacementUnits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_SaleOfPrivatePlacementUnits"/>
  <xs:element name="SaleOfPrivatePlacementUnitsShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SaleOfPrivatePlacementUnitsShares"/>
  <xs:element name="SaleOfRepresentativeShares" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_SaleOfRepresentativeShares"/>
  <xs:element name="SaleOfRepresentativeSharesShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SaleOfRepresentativeSharesShares"/>
  <xs:element name="FormationGeneralAndAdministrativeExpensesPaidBySponsorUnderPromissoryNoteRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_FormationGeneralAndAdministrativeExpensesPaidBySponsorUnderPromissoryNoteRelatedParty"/>
  <xs:element name="IncreaseDecreaseInAdministrativeSupportFeePayableRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_IncreaseDecreaseInAdministrativeSupportFeePayableRelatedParty"/>
  <xs:element name="ContributionsForPurchaseOfPrivatePlacementUnits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_ContributionsForPurchaseOfPrivatePlacementUnits"/>
  <xs:element name="PaymentOfUnderwritingFeesAndReimbursements" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_PaymentOfUnderwritingFeesAndReimbursements"/>
  <xs:element name="PrepaidExpensesPaidBySponsorInExchangeForIssuanceOfOrdinaryShares" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_PrepaidExpensesPaidBySponsorInExchangeForIssuanceOfOrdinaryShares"/>
  <xs:element name="DeferredOfferingCostsPaidBySponsorUnderIPOPromissoryNoteRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_DeferredOfferingCostsPaidBySponsorUnderIPOPromissoryNoteRelatedParty"/>
  <xs:element name="DeferredOfferingCostsIncludedInAccruedOfferingCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_DeferredOfferingCostsIncludedInAccruedOfferingCosts"/>
  <xs:element name="RemeasurementOfSharesSubjectToPossibleRedemption" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_RemeasurementOfSharesSubjectToPossibleRedemption"/>
  <xs:element name="PrepaidExpensesPaidBySponsorUnderIPOPromissoryNoteRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_PrepaidExpensesPaidBySponsorUnderIPOPromissoryNoteRelatedParty"/>
  <xs:element name="InitialFairValueOfClassAOrdinarySharesSubjectToPossibleRedemption" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_InitialFairValueOfClassAOrdinarySharesSubjectToPossibleRedemption"/>
  <xs:element name="PrivatePlacementTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PrivatePlacementTextBlock"/>
  <xs:element name="EmergingGrowthCompanyStatusPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_EmergingGrowthCompanyStatusPolicyTextBlock"/>
  <xs:element name="CashHeldInTrustAccountPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_CashHeldInTrustAccountPolicyTextBlock"/>
  <xs:element name="OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock"/>
  <xs:element name="ClassAOrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_ClassAOrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock"/>
  <xs:element name="RightsPilicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_RightsPilicyTextBlock"/>
  <xs:element name="SIGNIFICANTACCOUNTINGPOLICIESScheduleofBasicandDilutedNetIncomeLossPerOrdinaryShareDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_SIGNIFICANTACCOUNTINGPOLICIESScheduleofBasicandDilutedNetIncomeLossPerOrdinaryShareDetailsTable"/>
  <xs:element name="SIGNIFICANTACCOUNTINGPOLICIESScheduleofBasicandDilutedNetIncomeLossPerOrdinaryShareDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SIGNIFICANTACCOUNTINGPOLICIESScheduleofBasicandDilutedNetIncomeLossPerOrdinaryShareDetailsLineItems"/>
  <xs:element name="RemeasurementOfClassRedeemableSharesToRedemptionValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_RemeasurementOfClassRedeemableSharesToRedemptionValue"/>
  <xs:element name="NetIncomeIncludingAccretionOfTemporaryEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_NetIncomeIncludingAccretionOfTemporaryEquity"/>
  <xs:element name="TemporaryEquityTotalNumberOfSharesinShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_TemporaryEquityTotalNumberOfSharesinShares"/>
  <xs:element name="ProceedsAllocatedToPublicRights" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_ProceedsAllocatedToPublicRights"/>
  <xs:element name="OfferingCostsAllocatedToClassAOrdinarySharesSubjectToPossibleRedemption" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_OfferingCostsAllocatedToClassAOrdinarySharesSubjectToPossibleRedemption"/>
  <xs:element name="AccretionOfClassAOrdinarySharesSubjectToPossibleRedemption" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_AccretionOfClassAOrdinarySharesSubjectToPossibleRedemption"/>
  <xs:element name="FAIRVALUEMEASUREMENTSScheduleofFairValueHierarchytheCompanysAssetsandLiabilitiesthatwereAccountedforatFairValueonaRecurringBasisDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_FAIRVALUEMEASUREMENTSScheduleofFairValueHierarchytheCompanysAssetsandLiabilitiesthatwereAccountedforatFairValueonaRecurringBasisDetailsTable"/>
  <xs:element name="FAIRVALUEMEASUREMENTSScheduleofFairValueHierarchytheCompanysAssetsandLiabilitiesthatwereAccountedforatFairValueonaRecurringBasisDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_FAIRVALUEMEASUREMENTSScheduleofFairValueHierarchytheCompanysAssetsandLiabilitiesthatwereAccountedforatFairValueonaRecurringBasisDetailsLineItems"/>
  <xs:element name="ImpliedOrdinarySharePrice" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_ImpliedOrdinarySharePrice"/>
  <xs:element name="PublicRightsMeasurementInput" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_PublicRightsMeasurementInput"/>
  <xs:element name="CalculatedValuePerPublicRight" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_CalculatedValuePerPublicRight"/>
  <xs:element name="ORGANIZATIONANDBUSINESSOPERATIONSDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_ORGANIZATIONANDBUSINESSOPERATIONSDetailsTable"/>
  <xs:element name="ORGANIZATIONANDBUSINESSOPERATIONSDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_ORGANIZATIONANDBUSINESSOPERATIONSDetailsLineItems"/>
  <xs:element name="InceptionDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_InceptionDate"/>
  <xs:element name="PurchasedNumberOfPrivatePlacementUnits" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_PurchasedNumberOfPrivatePlacementUnits"/>
  <xs:element name="DeferredUnderwritingFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_DeferredUnderwritingFee"/>
  <xs:element name="StockIssuedPeriodValueIssuanceOfRepresentativeShares" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_StockIssuedPeriodValueIssuanceOfRepresentativeShares"/>
  <xs:element name="MinimumPercentageOfInitialBusinessCombinationFairMarketValueOfNetAssetsHeldInTrustAccount" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_MinimumPercentageOfInitialBusinessCombinationFairMarketValueOfNetAssetsHeldInTrustAccount"/>
  <xs:element name="MinimumPercentageOfOwnershipRequiredToCompleteBusinessCombination" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_MinimumPercentageOfOwnershipRequiredToCompleteBusinessCombination"/>
  <xs:element name="PercentageOfRedeemPublicShares" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PercentageOfRedeemPublicShares"/>
  <xs:element name="DepositAmountPerPublicShares" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_DepositAmountPerPublicShares"/>
  <xs:element name="InterestUsedToPayDissolutionExpensesMaximum" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_InterestUsedToPayDissolutionExpensesMaximum"/>
  <xs:element name="PublicPerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_PublicPerShare"/>
  <xs:element name="WorkingCapitalDeficit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_WorkingCapitalDeficit"/>
  <xs:element name="SIGNIFICANTACCOUNTINGPOLICIESDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_SIGNIFICANTACCOUNTINGPOLICIESDetailsTable"/>
  <xs:element name="SIGNIFICANTACCOUNTINGPOLICIESDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SIGNIFICANTACCOUNTINGPOLICIESDetailsLineItems"/>
  <xs:element name="NonredeemableWeightedAverageSharesOutstanding" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_NonredeemableWeightedAverageSharesOutstanding"/>
  <xs:element name="INITIALPUBLICOFFERINGDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_INITIALPUBLICOFFERINGDetailsTable"/>
  <xs:element name="INITIALPUBLICOFFERINGDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_INITIALPUBLICOFFERINGDetailsLineItems"/>
  <xs:element name="PRIVATEPLACEMENTDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_PRIVATEPLACEMENTDetailsTable"/>
  <xs:element name="PRIVATEPLACEMENTDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PRIVATEPLACEMENTDetailsLineItems"/>
  <xs:element name="PurchaseOfPrivatePlacementShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_PurchaseOfPrivatePlacementShares"/>
  <xs:element name="RELATEDPARTYTRANSACTIONSDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_RELATEDPARTYTRANSACTIONSDetailsTable"/>
  <xs:element name="RELATEDPARTYTRANSACTIONSDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_RELATEDPARTYTRANSACTIONSDetailsLineItems"/>
  <xs:element name="NumberOfSharesAllottedToBrokerDealer" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_NumberOfSharesAllottedToBrokerDealer"/>
  <xs:element name="PaidToSponsor" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_PaidToSponsor"/>
  <xs:element name="Overpayment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_Overpayment"/>
  <xs:element name="AdministrativeServicesFeeToRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdministrativeServicesFeeToRelatedParty"/>
  <xs:element name="OutstandingAdministrativeServiceFeePayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_OutstandingAdministrativeServiceFeePayable"/>
  <xs:element name="Workingcapitalloansamount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="bldc_Workingcapitalloansamount"/>
  <xs:element name="TypeOfUnderwritingDomainDomain" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_TypeOfUnderwritingDomainDomain"/>
  <xs:element name="COMMITMENTSANDCONTINGENCIESDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_COMMITMENTSANDCONTINGENCIESDetailsTable"/>
  <xs:element name="COMMITMENTSANDCONTINGENCIESDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_COMMITMENTSANDCONTINGENCIESDetailsLineItems"/>
  <xs:element name="OptionForUnderwritersToPurchaseAdditionalUnitsTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_OptionForUnderwritersToPurchaseAdditionalUnitsTerm"/>
  <xs:element name="AdditionalUnitsThatCanBePurchasedToCoverOverallotments" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdditionalUnitsThatCanBePurchasedToCoverOverallotments"/>
  <xs:element name="PercentageOfCashUnderwritingDiscount" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PercentageOfCashUnderwritingDiscount"/>
  <xs:element name="PercentageOfDeferredUnderwritingDiscount" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PercentageOfDeferredUnderwritingDiscount"/>
  <xs:element name="DescriptionOfUnderwritersDeferredCommissions" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_DescriptionOfUnderwritersDeferredCommissions"/>
  <xs:element name="IssuanceOfRepresentativeShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_IssuanceOfRepresentativeShares"/>
  <xs:element name="DescriptionOfRepresentativeShares" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_DescriptionOfRepresentativeShares"/>
  <xs:element name="SHAREHOLDERSDEFICITDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_SHAREHOLDERSDEFICITDetailsTable"/>
  <xs:element name="SHAREHOLDERSDEFICITDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SHAREHOLDERSDEFICITDetailsLineItems"/>
  <xs:element name="ConversionOfCommonStockSharesPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_ConversionOfCommonStockSharesPercentage"/>
  <xs:element name="MajorityShareholderPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_MajorityShareholderPercentage"/>
  <xs:element name="AffirmativeVotePercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_AffirmativeVotePercentage"/>
  <xs:element name="FAIRVALUEMEASUREMENTSDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_FAIRVALUEMEASUREMENTSDetailsTable"/>
  <xs:element name="FAIRVALUEMEASUREMENTSDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_FAIRVALUEMEASUREMENTSDetailsLineItems"/>
  <xs:element name="FairValueOfPublicRights" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="bldc_FairValueOfPublicRights"/>
  <xs:element name="PricePerPublicRight" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PricePerPublicRight"/>
  <xs:element name="SUBSEQUENTEVENTSDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="bldc_SUBSEQUENTEVENTSDetailsTable"/>
  <xs:element name="SUBSEQUENTEVENTSDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SUBSEQUENTEVENTSDetailsLineItems"/>
  <xs:element name="TypeOfUnderwritingAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem" id="bldc_TypeOfUnderwritingAxis"/>
  <xs:element name="AdministrativeSupportAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_AdministrativeSupportAgreementMember"/>
  <xs:element name="AlbertoPontonioMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_AlbertoPontonioMember"/>
  <xs:element name="BlockfusionMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_BlockfusionMember"/>
  <xs:element name="CalculatedValuePerPublicRightMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_CalculatedValuePerPublicRightMember"/>
  <xs:element name="CashUnderwritingDiscountMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_CashUnderwritingDiscountMember"/>
  <xs:element name="CommonClassASubjectToRedemptionMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_CommonClassASubjectToRedemptionMember"/>
  <xs:element name="DeferredUnderwritingDiscountMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_DeferredUnderwritingDiscountMember"/>
  <xs:element name="FounderMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_FounderMember"/>
  <xs:element name="IPOPromissoryNoteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_IPOPromissoryNoteMember"/>
  <xs:element name="ImpliedOrdinarySharePriceMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_ImpliedOrdinarySharePriceMember"/>
  <xs:element name="NonRedeemableClassAAndClassBOrdinarySharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_NonRedeemableClassAAndClassBOrdinarySharesMember"/>
  <xs:element name="NonredeemableClassAAndClassBOrdinarySharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_NonredeemableClassAAndClassBOrdinarySharesMember"/>
  <xs:element name="OwnershipPercentageMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_OwnershipPercentageMember"/>
  <xs:element name="ProbabilityOfAcquisitionMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_ProbabilityOfAcquisitionMember"/>
  <xs:element name="PromissoryNoteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PromissoryNoteMember"/>
  <xs:element name="PublicRightsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_PublicRightsMember"/>
  <xs:element name="RedeemableClassAOrdinarySharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_RedeemableClassAOrdinarySharesMember"/>
  <xs:element name="RedeemableSharesClassAOrdinarySharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_RedeemableSharesClassAOrdinarySharesMember"/>
  <xs:element name="RobertsRyanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_RobertsRyanMember"/>
  <xs:element name="SeriesACommonStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SeriesACommonStockMember"/>
  <xs:element name="SeriesBCommonStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SeriesBCommonStockMember"/>
  <xs:element name="SponsorMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_SponsorMember"/>
  <xs:element name="UnderwritersOverAllotmentOptionMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_UnderwritersOverAllotmentOptionMember"/>
  <xs:element name="WorkingCapitalLoansMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_WorkingCapitalLoansMember"/>
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  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="bldc_DocumentAndEntityInformationAbstract"/>
</xs:schema>
