...
The start of the first element is implied and is always equal to zero.
Contains A value area contains data for each tuple field one after another as described above. Potentially a field can contain any kind of data. However there are rules how to represent values of specific types as binary tuple fields. Data types for which there are no specified rules still may be put into a tuple as a Binary
field, but interpretation in this case is up to a particular application.
...
The list of supported data types for tuple fields is based on the list of types in IEP-54[1] with few additions. Namely, the additional types are:
...