At this level
id.sifa.project · 3- id.sifa.project.member record not from the namespace authority DEPRECATED, never implemented. An invitation to join a project team, written by a project owner in their PDS. Superseded by naming members inline on id.sifa.profile.project and having them affirm it with a generic id.sifa.confirmation record, which serves every people-link relation rather than only projects. Retained so the published schema record keeps resolving; write id.sifa.confirmation instead.
- id.sifa.project.membership record not from the namespace authority DEPRECATED, never implemented. Acceptance of an id.sifa.project.member invitation, written by the invited user in their own PDS. Superseded by the generic id.sifa.confirmation record, which affirms any record naming you rather than project invitations alone. Retained so the published schema record keeps resolving; write id.sifa.confirmation instead.
- id.sifa.project.self record not from the namespace authority A collaborative project record. Lives in the project creator's PDS. TID-keyed so one user can create multiple projects. Supports multiple owners — the creator is the first owner, and any owner can promote core members.