Interestingly these three entries show close association with each other
ECSD
https://www.kannapedia.net/strains/rsp12922
SOUR D
https://www.kannapedia.net/strains/rsp11343
NYCD
https://www.kannapedia.net/strains/rsp11225
So I guess this site, should you want to submit a sample, can tell you...