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Schedule of information about Trust's assets and liabilities measured at fair value (Details) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
[1]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Total Investments $ 505,489,906 $ 826,306,338 [1]  
Bitcoin [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Bitcoin 505,489,906 826,306,338
Fair Value, Inputs, Level 1 [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Total Investments 505,489,906 826,306,338  
Fair Value, Inputs, Level 1 [Member] | Bitcoin [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Bitcoin 505,489,906 826,306,338  
Fair Value, Inputs, Level 2 [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Total Investments  
Fair Value, Inputs, Level 2 [Member] | Bitcoin [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Bitcoin  
Fair Value, Inputs, Level 3 [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Total Investments  
Fair Value, Inputs, Level 3 [Member] | Bitcoin [Member]      
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]      
Bitcoin  
[1] The Trust did not hold bitcoin as of or prior to January 1, 2024