/rdf_hash

Calculate the hash of a RDF graph.

Primary LanguagePythonApache License 2.0Apache-2.0

RDF Hash

This libray generates a canonical serialization and cryptographic hash of a RDF graph.

The logic is drawn from a publication by Edzard Höfig and Ina Schieferdecker.

Note: This implementation represents RDF identifiers in their full N3 syntax: fully qualified IRIs are represented with angle brackets, literals with double quotes, and so on, e.g.:

<http://ex.org/a> # An IRI
"Ahoy"^^<http://www.w3.org/2001/XMLSchema#string> # A string literal
3 # An xsd:int literal

Note: there has been further development of this logic since the original publication. Most notably, prof. Miguel Ceriani discovered two edge cases that invalidate the logic. This implementation attempts to resolve the first one but the second one will require further research. See related discussion.