Significant Accounting Policies (Details) - Schedule of Investments at Fair Value - USD ($)	Jan. 31, 2024	Jan. 31, 2023
Level 1 [Member]
Schedule of Investments at Fair Value [Line Items]
Investment at fair value	$ 780,184,353	$ 656,592,807
Level 1 [Member] | Investment in gold [Member]
Schedule of Investments at Fair Value [Line Items]
Investment at fair value	780,184,353	656,592,807
Level 2 [Member]
Schedule of Investments at Fair Value [Line Items]
Investment at fair value
Level 2 [Member] | Investment in gold [Member]
Schedule of Investments at Fair Value [Line Items]
Investment at fair value
Level 3 [Member]
Schedule of Investments at Fair Value [Line Items]
Investment at fair value
Level 3 [Member] | Investment in gold [Member]
Schedule of Investments at Fair Value [Line Items]
Investment at fair value