It's old school Sovereign. You know, where the Sovereign gets to take your stuff...
Discussion
can you ELI5 what this “rollup” is actually doing?
It's sovereign because it's neither a sidechain nor L2 but a completely independent alt chain dumping block data to Bitcoin. Mastercoin 3,0 or is it 4,0 now?
There's a bunch of Consensys funded stuff happening if you haven't noticed.

