ECFP Hash - JChem vs RDKit

Does anyone know if the hashes used for JChem and RDKit's ECFP are the same (e.g. unfolded bit position 832892 corresponds to the same set of molecules in both packages)? My old code was built on python and the RDKit implementation and I would prefer not to re-do my prior analysis if possible.

No, the hashing function is not standardized so the hashes (bit positions) can not be compared across implementations.