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PREPAYMENTS AND OTHER CURRENT ASSETS, NET (Details)
 1 Months Ended 12 Months Ended
Mar. 31, 2021
USD ($)
item
Dec. 31, 2022
CNY (¥)
item
Dec. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
item
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
PREPAYMENTS AND OTHER CURRENT ASSETS, NET              
Employee advances   ¥ 1,785,204   $ 258,830 ¥ 1,294,840    
Input VAT recoverable   2,632,299   381,647 2,310,475    
Prepayments and deposits   266,027,845   38,570,412 465,073,710    
Receivable in relating to disposal of a subsidiary | ¥         55,251,240    
Other receivables, net of allowance for doubtful accounts of RMB 6,619,312 and RMB 5,655,941, as of December 31, 2020 and 2021, respectively   2,042,230   296,096 4,179,023    
Prepayments and other current assets, total   272,487,578   $ 39,506,985 528,109,288 $ 82,871,871  
Purchase of Antminer Bitcoin Mining Machines | item 24,000            
Total consideration payable for Bitcoin mining machines | $ $ 82,800,000            
Perpayments for purchased servers for the cryptocurrency business   ¥ 513,700,000 $ 74,500,000        
Number of antminer bitcoin mining machines received and confirmed as fixed assets | item   11,614   11,614      
Antminer Bitcoin Mining Machines   ¥ 273,200,000   $ 39,600,000      
Other receivables, allowance for doubtful accounts | ¥         ¥ 22,738,176   ¥ 5,655,941
Total payment commitment   135,500,000 $ 19,600,000        
Prepayments of service agreements   ¥ 23,700,000   $ 3,400,000