adlnet/xAPI-Spec — pull request #192 by bscSCORM (2013-04-16 17:02:20+00:00)
Title: DISCUSS: (ALTERNATIVE) allow fileUrl-only attachments to skip mime/multipart format

May be easiest to look at finished result: https://github.com/bscSCORM/xAPI-Spec/blob/multipart2/xAPI.md#attachments

an alternative to: https://github.com/adlnet/xAPI-Spec/pull/184