+1
What about attachment? I think it should be allowed, but it's not one we actually decided on. 

Also can you sign a sub-statement?



fugu13 <notifications@github.com> wrote:

>In xAPI.md:
>
>> > -* MUST specify an "objectType" property with the value "SubStatement"; > -* MUST NOT have the "id", "stored", or "authority" properties; > -* MUST NOT contain a sub-statement of their own i.e. cannot be nested. > +* A Sub-Statement MUST specify an "objectType" property with the value "SubStatement". > +* A Sub-Statement MUST NOT have the "id", "stored", or "authority" properties. 
>
>we should probably add version to this
>
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