1. http://www.bloter.net/archives/261939
(2018)
2. https://www.bigchaindb.com
(2018)
3. https://www.ibm.com/cloud-computing/bluemix/ko/architecture
(2018)
4. https://www.ibm.com/cloud-computing/bluemix/ko/watson
(2018)
5. https://www.media.mit.edu/projects/enigma
(2018)