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Schedule of convertible bonds (Details) - USD ($)
Dec. 31, 2025
Oct. 08, 2025
Dec. 31, 2024
Short-Term Debt [Line Items]      
Convertible Promissory Note - B $ 4,599,488 $ 4,000,000 $ 1,750,000
Net carrying amount 4,599,488 $ 4,000,000 1,750,000
Less: maturing within one year  
Mature after one year 4,599,488   1,750,000
Convertible Promissory Note A [Member]      
Short-Term Debt [Line Items]      
Convertible Promissory Note - B   1,750,000
Net carrying amount   1,750,000
Convertible Promissory Note B [Member]      
Short-Term Debt [Line Items]      
Convertible Promissory Note - B 4,599,488  
Net carrying amount $ 4,599,488