curl --request GET \
  --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/lsu'

{
  "lsu": {
    "topologyFreezeTime": "2026-01-01T00:00:00Z",
    "upgradeTime": "2026-01-01T00:00:00Z",
    "successorPhysicalSynchronizerId": "string"
  }
}