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Organization - Additional Information (Detail)
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 08, 2024
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
shares
Jun. 17, 2024
USD ($)
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2025
Creationbasket
shares
Organization [Line Items]            
Shares issued (in shares) | shares   4,000   160,000 275,000  
Stock issued | $   $ 100,000   $ 3,368,191 $ 6,425,219  
Number of shares issued per Creation Basket | shares           5,000
Minimum number of Creation Baskets that can be purchased | Creationbasket           1
Redemption value | $   $ 0   $ 0 $ 1,450,909  
Initial Seed Shares            
Organization [Line Items]            
Shares issued (in shares) | shares     4,000      
Stock issued | $     $ 100,000      
Share issued price per share | $ / shares $ 25          
Redemption value | $ $ 100,000          
Creation Baskets            
Organization [Line Items]            
Number of creation basket shares | shares 3,000          
Creation Baskets | Ethereum            
Organization [Line Items]            
Number of ethereums, per share | $ / shares $ 30.042