quoting nevent1q…dhegwe have multiple DATUM pools now:
https://pool.iohzrd.tech
https://b.pyblock.xyz:8443/wavicles.php
RATUM's blocks just show up as "mhr6091" on the main viewer, but that's just one of the many individual miner tags in its coinbase transactions. Other miners and pools similarly have weird logic for determining and extracting what tags are consistently there and what tags are not.