| Document and Entity Information | Dec. 02, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Dec. 2, 2021 |
| Entity Registrant Name | Bitwise 10 Crypto Index Fund |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 000-56270 |
| Entity Tax Identification Number | 82-3002349 |
| Entity Address, Address Line One | 400 Montgomery Street |
| Entity Address, Address Line Two | Suite 600 |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94111 |
| City Area Code | 415 |
| Local Phone Number | 968-1843 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Description | Bitwise Investment Advisers, LLC (the “Sponsor”) on behalf of the Bitwise 10 Crypto Index Fund (BITW) (the “Trust”) is filing this amended Current Report on Form 8-K/A (the “Current Report”) to amend the Company’s current report on Form 8-K originally filed on December 2, 2021 (the “Original Form 8-K”) and amended on December 21, 2021 (the “Amended Form 8-K/A”), to remove the below highlighted language setting forth the steps that management of the Sponsor had previously planned to take in conjunction with the Trust’s change in valuation policy, and to clarify the actual next steps taken.As set forth in the Amended Form 8-K/A, the Trust had determined that the previous valuation policy, which utilized a blended average approach for calculating the price of a digital asset instead of identifying a principal market for such digital asset, was not in keeping with the proper application of U.S. GAAP, specifically Financial Accounting Standards Board Accounting Standards Codification 820-10 (“ASC 820”), which outlines the application of fair value accounting under accounting principles generally accepted in the United States of America (“U.S. GAAP”), and, therefore, resulted in what was determined by the Sponsor to be an immaterial error in the Trust’s financial statements.Initially, the Sponsor on behalf of the Trust, planned to re-issue audited financial statements for the Trust’s fiscal years 2019 and 2020. However, in accordance with the Financial Accounting Standards Board Accounting Standards Codification 250 (“ASC 250”), the correct course of action for the Trust to take with regard to an immaterial error is to make the changes to the valuation policy and the financial statements in subsequent periods as an out of period adjustment rather than a restatement of the financial statements as originally planned. The Quarterly Report on Form 10-Q filed on November 10, 2021 reflects the changes to the valuation policy and out of period adjustment. |
| Entity Central Index Key | 0001723788 |
