Evermoon Seal is are item found in Nod-Krai in Genshin Impact. See how to get, trove location, uses, Evermoon Seal guide, secret troves, and where to find them!
Evermoon Seal How to Get
Evermoon Seal from Nod-Krai

Evermoon Seal is an item that can be randomly found around the Nod-Krai region, and is somewhat similar to the Obsidian Rings mechanics, where you need to gather each piece or fragment of it and forge it into one item.
Use the Evermoon Seal to Unlock Lunar Treasury

According to the Developers during the Luna I Version livestream (6.0), the Evermoon Seal can be used to unseal and unlock certain treasure locations around Nod-Krai.
Evermoon Seal Trove Locations
Evermoon Seal Trove Locations
More information will be added here soon once the Evermoon Seal is officially added in the game. Please check back again to get more updates!
Evermoon Seal - Reward
Get A Sanctifying Elixir Upon Getting the Evermoon Seal

Similar to the Obsidian Fragments in Natlan, you can get a Sanctifying Elixir as a reward for collecting them, hence it might be the same with the Evermoon Seal when gathering them as well.
Sanctifying Elixir - Uses & How To Get