Subsequent Events	2 Months Ended
Sep. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	11. Subsequent Events As of the close of business on October 28, 2024, the fair value of Bitcoin determined in accordance with the Trust’s accounting policy was $69,616.92 per Bitcoin. On October 24, 2024, the Sponsor of the Trust announced its intention to change the name of the Trust to Grayscale Bitcoin Mini Trust ETF, effective November 4, 2024. In connection with the name change the Sponsor plans to amend the Amended and Restated Declaration of Trust and Trust Agreement, as amended, to reflect the name change, also effective November 4, 2024. Trading under the new name is expected to begin on November 4, 2024. Following effectiveness of the name change, Shares of the Trust will continue to trade on NYSE Arca under the trading symbol “BTC.” There are no known events that have occurred that require disclosure other than that which has already been disclosed in these notes to the financial statements.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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