What is the use of seed for items?

Grim Dawn Modding - Tutorials and Help
1

I decrypted transfer.gst.
Found some items that have seed.
For example
Focusing on Prism,seed : 861731766
Chthonic Seal of Binding,seed : 419893793

What are these seeds for?

2

Do you mean what seeds are for these particular items or items in general?

3

They tell the game’s RNG how to calculate the variable part of the item stats.