2019-03-11 UTC
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cjslep[m] It's been living in my head forever and I finally typed it all out. It solves the problem of: Let's say I have a server A with a resource (such as a Collection) A. It has no human users, but user B on server B can modify resources owned on A. But so can user C on server C. How can A best ensure B and C don't have colliding Activities modifying it, and act as the linked data authority, while also not spoofing users B and C?