  The Gauss self-linking integral of an unframed knot is not a knot invariant,
but it can be turned into an invariant by adding a correction term which
requires adding extra structure to the knot. We collect the different
definitions/theorems/proofs concerning this correction term, most of which are
well-known (at least as folklore) and put everything together in an accessible
format. We then show simply and elegantly how these approaches coincide.
