This page summarizes the current understanding of different aspects of the OCM specifications and the existing implementations

Spec aspect	Status	Usage and maturity
Discovery endpoint	Production	CERNBox on v1.2 format, all other implementations on v1.1
Invite endpoint	Production	All known implementations can interoperate
Sharing of Files/Folders via webdav	Production	Most implementations interoperate, with different auth methods
Notifications of changes to shares	Production	Implemented by Nextcloud and oCIS, interoperability to be validated
Sharing of Telcos via talk	Production	Implemented by Nextcloud only
Sharing of Files via webapp	Prototype	Demonstrated by CERNBox only
Sharing of Files/Folders for datatx access	Concept	Partially demonstrated as part of the ScienceMesh project in 2022
Sharing of Files/Folders via ssh	Concept	Prototype being developed
Enforce criteria in a share	Concept	No implementations available
Enforce must-use-mfa requirement	Prototype	Partial development in Nextcloud
Enforce must-exchange-token requirement	Dev	Being developed in Nextcloud
Sharing of RO-Crates	Dev	Being developed in CERNBox for EOSC
Sharing of Maps via custom GIS-specific protocol	Dev	Being developed in connection with Open Geospatial Consortium (OGC)
Requesting to share	Early concept	-
Publishing of datasets	Early concept	-
DNS-based discovery via TXT records Issue	Prototype	Was in the spec, no impl.
Journaling / listing shares	Early concept	Spec to be written
Sharing to groups or federations Issue	Early concept	Discussions ongoing