phase A: each of 3 agents writes 5 memories to scenario17-stats
  ai:alice on 45.55.229.227
  ai:bob on 165.227.122.47
  ai:charlie on 209.97.157.77
settle 15s for W=2 fanout
phase B: querying count on every peer
  node-1 count=15 (expected 15)
  node-2 count=15 (expected 15)
  node-3 count=15 (expected 15)
  node-4 count=15 (expected 15)