Osenia was a Minecraft Realm of the Sylphe Project. It was a FTB Infinity 1.12.1 server based on Minecraft 1.7 and was hosted by Weyard.
osenia.sylphe.fr
Osenia, as well as each active Realm, was locally archived each hour for the last 48 hours. That way it could be reverted in case of griefing or data corruption. On top of that, a copy of the latest backup was sent to Neudaiz so that an emergency replacement Realm could be created immediately.