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Business combination (Tables)
12 Months Ended
Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]  
Schedule of fair value of business combination
     
   Fair Value
Consideration paid  $1,340,903 
Fair value of noncontrolling interest   966,862 
Less: fair value of net assets of Shanghai Qishuo     
 Cash   36,369 
 Other current assets   98,830 
 Fixed assets   55,550 
 Intangibles – customer relationship   172,514 
 Other current liabilities   (64,101)
Total fair value of net assets   299,162 
Goodwill as of acquisition date  $2,008,603