In the study creator next to the "Cryptographic salt" option there could be a button to create a random salt of fixed length like a 12-digit character string (upper and lower case letters, numbers).
A random salt is actually helpful if one wants to publish data as in that case it would act like a kind of password. Even with longer content identifiers it is practically impossible to use identifiers to identify participants in case the salt is unknown. The only way to yet identify participants in such a data set are the timestamps.
In the study creator next to the "Cryptographic salt" option there could be a button to create a random salt of fixed length like a 12-digit character string (upper and lower case letters, numbers).
A random salt is actually helpful if one wants to publish data as in that case it would act like a kind of password. Even with longer content identifiers it is practically impossible to use identifiers to identify participants in case the salt is unknown. The only way to yet identify participants in such a data set are the timestamps.