TL;DR

• Independent PoL per zone
• Tx sequence numbers per zone
• blocks from different zones build a DAG
• Blocks for the same height are eligible iff
  • the zone updates have the correct zone sequence numbers
  • the blocks are from different zones
  • the PoLs are valid
• Use blocks from other zones as endorsers to achieve faster finality

Introduction

• Adding more PoLs turns out to be actually good for privacy.
• We can have to have 16 PoLs per slot. The blend network delay is $\Delta_{routing}+\Delta_{blend}+\Delta_{routing}+\Delta_{blend}+\Delta_{broadcast} = 2\Delta_{routing} + 2\Delta_{blend}+\Delta_{broadcast} \approx 15s$

Background: Sovereign Zones

In the current version of Nomos, sequencers create Mantle transactions, post these Mantle transactions and their proofs as blobs to NomosDA and then add the blobs to the mempool. Consensus nodes see the opaque data Mantle transaction blobs, select a set of them to construct a Cryptarchia block,