Need for normalized hashes of jsonld documents

Best to use is prob this from pyld:

for normalization/hashes use 
# normalize a document using the RDF Dataset Normalization Algorithm
# (URDNA2015), see: https://json-ld.github.io/normalization/spec/
normalized = jsonld.normalize(
    doc, {'algorithm': 'URDNA2015', 'format': 'application/n-quads'})
# normalized is a string that is a canonical representation of the document
# that can be used for hashing, comparison, etc.