No this is not a pool! It is solomining farm. Аlso i found another one 0xc8f595e2084db484f8a80109101d58625223b7c9. It's started at 03/10/2021.

So we have 3 unknown farms:
1. Starts at 03/10/2021 - 0xc8f595e2084db484f8a80109101d58625223b7c9 - 153 blocks/day (on 04/04/2021)
2. Starts at 03/19/2021 - 0xbcc817f057950b0df41206c5d7125e6225cae18e - 141 blocks/day (on 04/04/2021)
3. Starts at 03/31/2021 - 0xc365c3315cf926351ccaf13fa7d19c8c4058c8e1 - 122 blocks/day (on 04/04/2021)

Hello everybody. Like all of you, I also wonder why so fast growing up Hashrate and difficult of Eth network. I decided to do a little investigation and found two addresses (0xbcc817f057950b0df41206c5d7125e6225cae18e and 0xc365c3315cf926351ccaf13fa7d19c8c4058c8e1). The first address appeared on 03/19/2021, the second address - 03/31/2021. Most impressive is the speed of building a network at the second address. According to my calculations, this is impossible!!! How can you create the network for solomining with 15 TH/s in 6 days (that's 120,000 cards RTX3090) and earn 3.5 million dollars!!!
May be this is new eth asics?