v3.23.1
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2022
Jan. 05, 2023
Jun. 30, 2022
Document Information Line Items      
Entity Registrant Name Osprey Bitcoin Trust    
Trading Symbol N/A    
Document Type 10-K    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   8,340,536  
Entity Public Float     $ 42,119,707
Amendment Flag false    
Entity Central Index Key 0001767057    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Shell Company false    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag true    
Document Annual Report true    
Document Transition Report false    
Entity File Number 000-56307    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 37-6695894    
Entity Address, Address Line One 1241 Post Road    
Entity Address, Address Line Two 2nd Floor    
Entity Address, City or Town Fairfield    
Entity Address, State or Province CT    
Entity Address, Postal Zip Code 06824    
City Area Code 914    
Local Phone Number 214-4697    
Title of 12(b) Security N/A    
Security Exchange Name NONE    
Entity Interactive Data Current Yes    
Auditor Firm ID 248    
Auditor Name GRANT THORNTON LLP    
Auditor Location New York, New York