diff --git a/README.md b/README.md
index edca160..6460519 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,8 @@ TIP stands for Tapyrus Improvement Proposal. A TIP is a design document providin
 or describing a new feature for Tapyrus or its processes or environment. 
 The TIP should provide a concise technical specification of the feature and a rationale for the feature.
 
-| Number           | Type    | Layer | Title       | Author           | Status |
-|------------------|---------|-------|-------------|------------------|--------|
-| [1](tip-0001.md) | Process |       | TIP Process | Shigeyuki Azuchi | Active |
-| [44](tip-0044.md) | Informational | Application | HDWallet cointype | Yukishige Nakajo | Draft |
+| Number             | Type    | Layer | Title   | Author           | Status |
+|--------------------|---------|--|---------|------------------|--------|
+| [1](tip-0001.md)   | Process |  | TIP Process | Shigeyuki Azuchi | Active |
+| [44](tip-0044.md)  | Informational | Application | HDWallet cointype | Yukishige Nakajo | Draft |
+| [100](tip-0100.md) | Informational | Application | Soulbound Tokens | Shigeyuki Azuchi | Draft |