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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2025
Significant Accounting Policies [Abstract] |
Schedule of Unobservable Inputs, Including the Trust’s Assumptions | Level 3: Unobservable inputs, including the Trust’s assumptions used in determining the fair value of investments, where there is little or no market activity for the asset or liability at the measurement date.
|  | Amount at |  |  | Fair Value Measurement Using |
(Amounts in thousands) |  | Fair Value |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Investment in bitcoin |  | $ | 3,305,394 |  |  | $ | 3,305,394 |  |  | $ | – |  |  | $ | – |
|  | Amount at |  |  | Fair Value Measurement Using |
(Amounts in thousands) |  | Fair Value |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Investment in bitcoin |  | $ | 4,352,648 |  |  | $ | 4,352,648 |  |  | $ | – |  |  | $ | – |

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- Definition Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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