1. Norwegian University of Science and Technology,Trondheim,Norway,7491
2. Old Dominion University,Norfolk,VA,United States,23529
3. University of Brescia,Brescia,Italy,25123
4. National Resilience,CA,USA,92037
5. Guidehouse,San Francisco,CA,USA
6. Open Access Technology International Inc.,Minneapolis,MN,USA
7. Blockchain Engineering Council,Houston,TX,USA