Signatures can be a merkle proof so a large group of chains with the same validators can have all their next blocks signed with a single signature by creating signatures for the root hash, then distributing these to all the chains.
This can help with speed as running chains internally is much faster than across block boundaries.
Signatures can be a merkle proof so a large group of chains with the same validators can have all their next blocks signed with a single signature by creating signatures for the root hash, then distributing these to all the chains.
This can help with speed as running chains internally is much faster than across block boundaries.