https://www.w3.org/groups/wg/rch/
RDF Dataset Canonicalization and Hash | Working Groups | Discover W3C groups | W3C
The mission of the RDF Dataset Canonicalization and Hash Working Group is to define a standard to uniquely and deterministically calculate a hash of RDF...
working groupsrdfdatasetcanonicalizationhash
https://datatracker.ietf.org/doc/html/rfc8785
RFC 8785 - JSON Canonicalization Scheme (JCS)
JSON Canonicalization Scheme (JCS) (RFC 8785, )
rfcjsoncanonicalizationschemejcs
https://seositecheckup.com/tools/url-canonicalization-test
URL Canonicalization Test | SEO Site Checkup
Confirm www, apex, HTTP, and HTTPS variants of your site collapse to one canonical URL so ranking signals consolidate instead of splitting across duplicates.
urlcanonicalizationtestseosite