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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2025
Significant Accounting Policies [Abstract]  
Schedule of Unobservable Inputs, Including the Trust’s Assumptions

Level 3: Unobservable inputs, including the Trust’s assumptions used in determining the fair value of investments, where there is little or no market activity for the asset or liability at the measurement date.

   Amount at   Fair Value Measurement Using 
(Amounts in thousands)  Fair Value   Level 1   Level 2   Level 3 
December 31, 2025                
Assets                
Investment in bitcoin  $3,305,394   $3,305,394   $
–
   $
–
 

 

   Amount at   Fair Value Measurement Using 
(Amounts in thousands)  Fair Value   Level 1   Level 2   Level 3 
December 31, 2024                
Assets                
Investment in bitcoin  $4,352,648   $4,352,648   $
–
   $
–