Currently, the caption of example 1 is "A minimal DID document".
Given the only core property that is mandatory is "id", the example in 1 is small but perhaps not minimal.
In order to avoid suggesting the "authentication" property is mandatory in the example, I would suggest rephrasing the caption to smth along the lines of "A concise DID document"?
(Of course, this is from the point of me, as non-native English speaker, as to the meaning of 'minimal' being the smallest possible.)
Currently, the caption of example 1 is "A minimal DID document". Given the only core property that is mandatory is "id", the example in 1 is small but perhaps not minimal. In order to avoid suggesting the "authentication" property is mandatory in the example, I would suggest rephrasing the caption to smth along the lines of "A concise DID document"? (Of course, this is from the point of me, as non-native English speaker, as to the meaning of 'minimal' being the smallest possible.)