These are the differences (errors field), see PR for the actual data returned

{'check_equality': True, 'equal': False, 'errors': ['Namespace {http://synbiohub.org#} not found in sbh3requestcontent', 'Namespace {http://www.w3.org/2001/XMLSchema#dateTime/} not found in sbh3requestcontent', 'Namespace {http://www.sybio.ncl.ac.uk#} not found in sbh3requestcontent', 'Namespace {http://www.ncbi.nlm.nih.gov#} not found in sbh3requestcontent', 'Namespace {http://sbols.org/genBankConversion#} not found in sbh3requestcontent', 'Namespace {http://www.ncbi.nlm.nih.gov/genbank#} not found in sbh3requestcontent', 'Namespace {http://purl.obolibrary.org/obo/} not found in sbh3requestcontent'], 'output_file': 'https://validator.sbolstandard.org/work/eb862204-af64-4977-90ce-d9917bd92efd.rdf', 'valid': True}