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Stock option liabilities (Tables)
 3 Months Ended
Oct. 31, 2025
Stock option liabilities [Abstract]  
Continuity of Derivative Stock Option Liabilities
The following is a continuity of the Company’s derivative stock option liabilities:

Balance as at July 31, 2024
  
$
-
  
Stock options fair value upon change De-SPAC transaction (Note 4)
    
330,090
  
Change in fair value of stock option liabilities
    
(196,625
)
Balance as at July 31, 2025
  
$
133,465
  
Change in fair value of stock option liabilities     (71,959 )
Balance as at October 31, 2025   $ 61,506