Schedules of Investments (Unaudited) - Investments (Details)	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Bitcoin	770,011	696,875		551,918	366,448	306,979		0
Investment in bitcoin, cost	$ 62,337,415,997	$ 53,376,118,281		$ 37,372,942,571	$ 21,511,514,705	$ 17,749,065,590		$ 0
Bitcoin fair value	87,952,924,873			51,530,013,513
Liabilities in Excess of Other Assets	(17,549,405)			(10,446,966)
Net Assets	$ 87,935,375,468	$ 74,705,557,367	$ 47,775,497,392	$ 51,519,566,547	$ 23,330,686,624	$ 19,449,621,956	$ 17,788,884,882	$ 100,000