diff --git a/src/lib.rs b/src/lib.rs
index 5dc33c9..0024fe3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -23,6 +23,13 @@ pub mod silentpayments;
 
 pub const MAX_PRD_PAYLOAD_SIZE: usize = u16::MAX as usize; // 64KiB sounds reasonable for now
 
+const DEMIURGE: &str = "demiurge";
+const PAIRING: &str = "pairing";
+const APOPHIS: &str = "apophis";
+
+const MEMBERPUBLICNAME: &str = "memberPublicName";
+const PAIREDADDRESSES: &str = "pairedAddresses";
+
 #[derive(Debug, PartialEq, Eq)]
 pub enum SpecialRoles {
     DEMIURGE, // Only valid for the first state of a process