Added note on the frequency of vote sortition

docs/technical-report-1.md

@@ -212,7 +212,11 @@ The plots below indicate that the phase length $L$ should be several times ${f_\
   
 
 ### Votes  
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+
+> [!NOTE]
+>
+> The discusison in section assumes that the committee changes every pipeline. If the committee were stable for a longer period like an Epoch or KES period, then votes and/or certificates could be made smaller by having them reference the proofs for voter eligibilty and for their evolving keys.
+
 The sortition for voting differs from that for blocks because, in principle, a node may win several votes in the lottery.  
 
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