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Concentration Risk (Details) - USD ($)
Sep. 30, 2025
Dec. 31, 2024
Additional Bitcoin Custodian [Member]    
Concentration Risk (Details) [Line Items]    
Investment Owned, Fair Value $ 2,039,322,369  
Bitcoin Custodian [Member]    
Concentration Risk (Details) [Line Items]    
Investment Owned, Fair Value   $ 1,280,450,332