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Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2025

Accounting Policies [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The following is a summary of the fair value hierarchy as of September 30, 2025, and December 31, 2024:

	September 30, 2025		Level 1				Level 2				Level 3				Total
	Assets
	Investment in bitcoin		$	2,039,322,369			$	—			$	—			$	2,039,322,369
	December 31, 2024		Level 1				Level 2				Level 3				Total
	Assets
	Investment in bitcoin		$	1,280,450,332			$	—			$	—			$	1,280,450,332

Changes In Quantity Of Bitcoin And The Respective Fair Value [Table Text Block]

The following represents the changes in quantity of bitcoin and the respective fair value:

			Bitcoin				Fair Value
	Beginning balance as of January 1, 2025			13,716.83			$	1,280,450,332
	Bitcoin purchased			6,179.64				659,825,469
	Bitcoin sold			(2,043.38)				(198,105,870)
	Net change in unrealized appreciation (depreciation) from investment in bitcoin			—				243,902,664
	Net realized gain on investment in bitcoin			—				53,249,774
	Ending balance as of September 30, 2025			17,853.09			$	2,039,322,369

			Bitcoin				Fair Value
	Beginning balance as of January 1, 2024(a)			—			$	—
	Bitcoin purchased			17,847.12				1,145,131,271
	Bitcoin sold			(4,130.29)				(283,712,958)
	Net change in unrealized appreciation (depreciation) from investment in bitcoin			—				384,606,755
	Net realized gain on investment in bitcoin			—				34,425,264
	Ending balance as of December 31, 2024			13,716.83			$	1,280,450,332

(a) The Trust did not hold any bitcoin as of January 1, 2024.

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- Definition

Disclosure of changes in quantity of bitcoin and the respective fair value.

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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