27 hours ago to 11.5 hours ago the minting block rate was 1.55min/block on average;
11.5 hours ago to 5.8 hours ago it was 1.13;
5.8 hours ago until now it is 0.82.
The minting diff changed from 0.000247 to 0.000240 to 0.000241 (edit: this is from memory because the blockexplorer doesn’t displyenough significant digits)
It seems that the minting difficulty adjustment is too slow to regulate the block rate within a time frame of at least 6 hours, causing great fluctuation.
How is the minting difficulty adjusted for Nushares?