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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationDateOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, Date of Incorporation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total proceeds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Other Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedGainlossOnInvestmentInBitcoinSoldForRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain (loss) on investment in bitcoin sold for redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedGainlossOnInvestmentInBitcoinSoldForRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Realized Gainloss On Investment In Bitcoin Sold For Redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedGainlossOnInvestmentInBitcoinSoldForRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of net realized gain (loss) on investment in bitcoin sold for redemptions.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized appreciation (depreciation) on investment in bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fair Value, Change in unrealized appreciation (depreciation) on investment in bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain (loss) on investment in bitcoin sold to pay Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Other Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueOfBitcoinAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Changes in Quantity and the Fair Value of Bitcoin [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Fair Value, Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Fair Value, Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Bitcoin purchased for contributions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Bitcoin Purchased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount fair value, bitcoin purchased.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Bitcoin sold for redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Bitcoin Sold</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinSold_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount fair value, bitcoin sold.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinSoldToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Bitcoin sold to pay expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinSoldToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Bitcoin Sold To Pay Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FairValueBitcoinSoldToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value bitcoin sold to pay expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Shares redeemed (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Shares redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Redeemed or Called During Period, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Parties [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_TrustExpensesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Expenses (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayableInvestmentPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bitcoin purchased payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayableInvestmentPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payable, Investment, Purchase</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Bitcoin Sold Receivable [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Net asset value per Share, beginning of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net asset value per Share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Net asset value per Share, end of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Asset Value Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fair Value, Net realized gain (loss) on investment in bitcoin sold to pay Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain (loss) on investment in bitcoin sold to pay Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayablesAndAccrualsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Bitcoin Purchased Payable [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued and redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distribution to Shareholders [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Net assets, beginning of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Net assets, end of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedAndChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net realized and change in unrealized gain (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedAndChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Realized And Change In Unrealized Gain Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedAndChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of net realized and change in unrealized gain (loss).</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinChangeInUnrealizedAppreciationDepreciationOnInvestmentInBitcoin_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin, Change in unrealized appreciation (depreciation) on investment in bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinChangeInUnrealizedAppreciationDepreciationOnInvestmentInBitcoin_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoin Change In Unrealized Appreciation Depreciation On Investment In Bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinChangeInUnrealizedAppreciationDepreciationOnInvestmentInBitcoin_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin, change in unrealized appreciation (depreciation) on investment in bitcoin.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyCapitalShareTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Activity in Capital Share Transactions:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyCapitalShareTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Capital Share Transaction, Increase (Decrease) [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Change in Capital Transactions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity, Period Increase (Decrease), Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_UnrealizedGainLossOnSponsorFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized gain (loss) on Sponsor Fee payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_UnrealizedGainLossOnSponsorFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain Loss On Sponsor Fee Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_UnrealizedGainLossOnSponsorFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of unrealized gain (loss) on sponsor fee payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedGainOnInkindLiabilitiesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gain on in-kind liabilities paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedGainOnInkindLiabilitiesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Realized Gain On Inkind Liabilities Paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NetRealizedGainOnInkindLiabilitiesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of net realized gain on in-kind liabilities paid.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions for Shares redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Distributions for Shares redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Tax Return of Capital Distribution</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CreationandRedemptionofSharesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Creation and Redemption of Shares (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CreationBasketsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Creation Baskets [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CreationBasketsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Creation Baskets Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_RatioToAverageNetAssets4Abstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratio to average net assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_RatioToAverageNetAssets4Abstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ratio To Average Net Assets4 Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioExcludingIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioExcludingIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Expense Ratio, after Fee Waiver and before Incentive Fee Deduction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss), Per Share, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in net assets from operations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Net Asset Value, Per Share, Period Increase (Decrease)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Parties [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Digital asset purchases</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset, Purchase</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment in bitcoin, fair value cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorizedUnlimited_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock shares authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorizedUnlimited_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized, Unlimited [Fixed List]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_SchedulesOfInvestmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedules Of Investment Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CryptoAssetAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in-capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Contributions for Shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions for Shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation, State or Country Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Realized and change in unrealized gain (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, after Tax [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net increase (decrease) in net assets resulting from operations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Quantity of bitcoin, Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Quantity of bitcoin, Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Balance, Contracts</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin, Bitcoin purchased for contributions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoin Bitcoin Purchased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin, bitcoin purchased.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin, Bitcoin sold for redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoin Bitcoin Sold</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinSold_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin, bitcoin sold.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinSoldToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin, Bitcoin sold to pay expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinSoldToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoin Bitcoin Sold To Pay Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinBitcoinSoldToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin, bitcoin sold to pay expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinNetRealizedGainLossOnInvestmentInBitcoinSoldToPaySponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin, Net realized gain (loss) on investment in bitcoin sold to pay Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinNetRealizedGainLossOnInvestmentInBitcoinSoldToPaySponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoin Net Realized Gain Loss On Investment In Bitcoin Sold To Pay Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinNetRealizedGainLossOnInvestmentInBitcoinSoldToPaySponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin, net realized gain (loss) on investment in bitcoin sold to pay sponsor fee.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsors accrued liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Legal fees and expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Creation and Redemption of Shares [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CreationandRedemptionofSharesDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Creation and Redemption of Shares (Details) [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_RelatedPartiesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Parties (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TrustsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Expenses [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Net realized gain (loss) on investment in bitcoin sold for redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Investment Gains (Losses)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_ScheduleOfAuthorizedParticipantRedeemsSharesInKindTheTrustAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Authorized Participant Redeems Shares In Kind The Trust Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Authorized Participant Redeems Shares in-Kind, the Trust [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated earnings (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued and outstanding, no par value, unlimited amount authorized (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">% of Net Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Net Assets, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SponsorFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SponsorFees_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Sponsor fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SponsorFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net investment loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_TrustExpensesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_TrustExpensesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Expenses Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_TrustExpensesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Trust Expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration Risk</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_IndemnificationDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Indemnification [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Accounting</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_InvestmentTransactionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Transactions</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_InvestmentTransactionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for investment in financial asset.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal Income Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEffectOfSignificantUnobservableInputsChangesInPlanAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Unobservable Inputs, Including the Trust&#8217;s Assumptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEffectOfSignificantUnobservableInputsChangesInPlanAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Bitcoin [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Authorized Participant Redeems Shares in-Kind, the Trust</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Weighted Average Number of Shares [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Bitcoin Sold Receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesPurchaseOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchased shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesPurchaseOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Purchase of Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NonRule10b51ArrangementModified_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Rule 10b5-1 Arrangement Modified</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_NonRule10b51ArrangementModified_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Rule10b51 Arrangement Modified</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Unobservable Inputs, Including the Trust&#8217;s Assumptions [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investment in bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment in bitcoin, at fair value (cost $2,737,877, and $3,479,646, respectively)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset, Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_Rule10b51ArrangementModified_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rule 10b5-1 Arrangement Modified</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_Rule10b51ArrangementModified_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rule10b51 Arrangement Modified</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Per share price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Share Issuance, Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision for income tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), after Provision for Loan Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetNumberOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust purchased bitcoins</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetNumberOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset, Number of Units</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Bitcoin Purchased Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetHoldingTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Changes in Quantity and the Fair Value of Bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetHoldingTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset, Holding [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CalculationOfNetAssetValueNAVAndNAVPerSharesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Calculation of NAV and NAV per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CalculationOfNetAssetValueNAVAndNAVPerSharesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Calculation Of Net Asset Value NAVAnd NAVPer Shares Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_CalculationOfNetAssetValueNAVAndNAVPerSharesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for calculation of net asset value &#8220;NAV&#8221; and NAV per share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Valuation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Estimates</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share split</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity Note, Stock Split</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivableInvestmentSale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bitcoin sold receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivableInvestmentSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable, Investment, Sale</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_ScheduleOfFinancialHighlightsPerSharePerformanceAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Financial Highlights Per Share Performance [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinNetRealizedGainLossOnInvestmentInBitcoinSoldForRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin, Net realized gain (loss) on investment in bitcoin sold for redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinNetRealizedGainLossOnInvestmentInBitcoinSoldForRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoin Net Realized Gain Loss On Investment In Bitcoin Sold For Redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoinNetRealizedGainLossOnInvestmentInBitcoinSoldForRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin, net realized gain (loss) on investment in bitcoin sold for redemptions.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Common Stock, Shares Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Period Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_BitcoinMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment in bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_BitcoinMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bitcoin Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoins_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quantity of bitcoin</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoins_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Quantity Of Bitcoins</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_QuantityOfBitcoins_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Quantity of bitcoin.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FalconXBravoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">FalconX Bravo [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_FalconXBravoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Falcon XBravo Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesHeldInEmployeeTrustShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares of the trust, held by sponsor</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetSale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Digital asset sales</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CryptoAssetSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset, Sale</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Change in Capital Shares</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investment [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CryptoAssetDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crypto Asset [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_LiabilitiesInExcessOfOtherAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities in excess of other assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_LiabilitiesInExcessOfOtherAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities In Excess Of Other Assets Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_TrustExpensesDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_DescriptionOfWaiveTheSponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Description of waive sponsor fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_DescriptionOfWaiveTheSponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Description Of Waive The Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_DescriptionOfWaiveTheSponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Description of the waive sponsor fee.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_PercentageOfSponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of sponsor fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_PercentageOfSponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Sponsor Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_PercentageOfSponsorFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The percentage of sponsor fee.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized and change in unrealized gain(loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Gain (Loss) on Investment, Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturn_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturn_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Total Return</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss) Ratio</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturnAfterIncentiveFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total return, at net asset value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturnAfterIncentiveFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Total Return after Incentive Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="arkb_SponsorsFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of Sponsor&#8217;s fee payable.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
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