Dosh has split into 3 different blockchains lately. As speaking from yesterday since being on youpool.io.

Top blocks: 70236, 72369 and 71635.

From having my blockchain since the start of DOSH. It should be 70236.

Since blocks from 72369 and 71635 are not accepted into my chain.

Someone is already mining at 70236. What number it further will be I don't know But not the others as of yet.