The "first robin" is already here 
Marathon Digital Holdings, Inc. (NASDAQ:MARA) (“Marathon" or "Company"), one of the largest enterprise Bitcoin self-mining companies in North America, today announced that the Company will be launching the first Bitcoin mining pool based in North America that is fully compliant with U.S. regulations, including anti-money laundering (AML) and the Office of Foreign Asset Control’s (OFAC’s) standards.
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To set up its pool, Marathon has exclusively licensed technology from DMG Blockchain that allows the Company to filter transactions. Marathon intends to leverage this technology to ensure that its mining pool adheres to AML regulations and that all transactions are compliant with OFAC’s standards. As such, the pool will refrain from processing transactions from those listed on the U.S. Department of Treasury’s Specially Designated Nationals and Blocked Persons List (SDN). By excluding these transactions, all bitcoin Marathon mines will be compliant with U.S. regulatory standards.
http://www.globenewswire.com/news-release/2021/03/30/2201996/0/en/CORRECTION-Marathon-Digital-Holdings-to-Launch-the-First-North-American-Based-Bitcoin-Mining-Pool-Fully-Compliant-with-U-S-Regulations.html
Marathon Digital Holdings, Inc. (NASDAQ:MARA) (“Marathon" or "Company"), one of the largest enterprise Bitcoin self-mining companies in North America, today announced that the Company will be launching the first Bitcoin mining pool based in North America that is fully compliant with U.S. regulations, including anti-money laundering (AML) and the Office of Foreign Asset Control’s (OFAC’s) standards.
...
To set up its pool, Marathon has exclusively licensed technology from DMG Blockchain that allows the Company to filter transactions. Marathon intends to leverage this technology to ensure that its mining pool adheres to AML regulations and that all transactions are compliant with OFAC’s standards. As such, the pool will refrain from processing transactions from those listed on the U.S. Department of Treasury’s Specially Designated Nationals and Blocked Persons List (SDN). By excluding these transactions, all bitcoin Marathon mines will be compliant with U.S. regulatory standards.
http://www.globenewswire.com/news-release/2021/03/30/2201996/0/en/CORRECTION-Marathon-Digital-Holdings-to-Launch-the-First-North-American-Based-Bitcoin-Mining-Pool-Fully-Compliant-with-U-S-Regulations.html