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REVENUE AND CONTRACT BALANCES (Q2) (Tables)
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
REVENUE AND CONTRACT BALANCES [Abstract]    
Schedule of contracts with customers, Revenue

The Group derives revenues in the following major categories:

 
 ​ ​
Periods ended June 30,
In thousands of USD
 ​ ​
2022
 ​ ​
2023
Self-mining business
 ​ ​
41,010
 ​ ​
34,713
Cloud hash rate
​ ​
 
 ​ ​
 
Hash rate subscription
 ​ ​
46,861
 ​ ​
21,877
Electricity subscription
 ​ ​
24,583
 ​ ​
13,994
Additional consideration from acceleration plan arrangements
 ​ ​
3,449
 ​ ​
168
Sales of mining machines
 ​ ​
442
 ​ ​
2
Cloud hosting arrangements(2)
 ​ ​
6,787
 ​ ​
1,805
Membership hosting
 ​ ​
—
 ​ ​
40,435
General hosting
 ​ ​
53,000
 ​ ​
49,911
Others(1)
 ​ ​
3,487
 ​ ​
3,498
Total revenues
 ​ ​
179,619
 ​ ​
166,403

(1)
Others include revenue generated primarily from providing technical and human resources service, repairment services of hosted mining machines, lease of investment properties, and the sale of mining machine peripherals. 
(2)
The Group did not generate any revenue from the additional consideration from Cloud Hosting arrangements offered under accelerator mode for the periods ended June 30, 2022 and 2023.
Details of revenues for each category are as follows:

 
 ​ ​
Years ended December 31,
 
 ​ ​
2020
 ​ ​
2021
 ​ ​
2022
In thousands of USD
 ​ ​
(Restated)
 ​ ​
 
 ​ ​
 
Self-mining
 ​ ​
88,493
 ​ ​
191,693
 ​ ​
62,359
Cloud hash rate
​ ​
 
 ​ ​
 
 ​ ​
 
Hash rate subscription
 ​ ​
31,389
 ​ ​
53,952
 ​ ​
77,862
Electricity subscription
 ​ ​
45,242
 ​ ​
35,113
 ​ ​
39,525
Additional consideration from Cloud Hash Rate arrangements under acceleration mode
 ​ ​
1,657
 ​ ​
35,140
 ​ ​
3,954
Sales of mining machines
 ​ ​
15,844
 ​ ​
45,693
 ​ ​
705
Cloud hosting arrangements(2)
 ​ ​
2,929
 ​ ​
7,568
 ​ ​
12,723
General hosting
 ​ ​
—
 ​ ​
18,312
 ​ ​
99,251
Membership hosting
 ​ ​
—
 ​ ​
—
 ​ ​
26,056
Others(1)
 ​ ​
833
 ​ ​
7,190
 ​ ​
10,907
Total revenues
 ​ ​
186,387
 ​ ​
394,661
 ​ ​
333,342

(1)
Others include revenue generated primarily from providing technical and human resources service, repairment services of hosted mining machines, lease of investment properties, and the sale of mining machine peripherals.
(2)
The Group did not generate any revenue from the additional consideration from Cloud Hosting arrangements offered under accelerator mode for the years ended December 31, 2020, 2021 and 2022.