diff --git a/README.md b/README.md
index a1ec6be..0b7534e 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ This repository tracks all REPs proposed by the RSS3 Community.
 | [REP-16](./REPs/REP-16.md) | Staking Rewards Taxation Adjustment            | [Albert](mailto:iavl@proton.me), [HenryQW](mailto:hi@henry.wang)                                                                                                                                                                                                                                        | Core     | Final     |
 | [REP-20](./REPs/REP-20.md) | Data Availability Layer Integration            | [Albert](mailto:iavl@proton.me), [HenryQW](mailto:hi@henry.wang)                                                                                                                                                                                                                                        | Core     | Final     |
 | [REP-26](./REPs/REP-26.md) | Chip Mechanism Upgrade                         | [BruceXC](mailto:xichang1510@gmail.com)                                                                                                                                                                                                                                                                 | Core     | Final     |
-| [REP-33](./REPs/REP-33.md) | Node State Transition                          | [KallyDev](mailto:kallydev@rss3.io), [BruceXC](mailto:xichang1510@gmail.com)                                                                                                                                                                                                                            | Core     | Review    |
+| [REP-33](./REPs/REP-33.md) | Node State Transition                          | [KallyDev](mailto:kallydev@rss3.io), [BruceXC](mailto:xichang1510@gmail.com)                                                                                                                                                                                                                            | Core     | Candidate |
 | [REP-38](./REPs/REP-38.md) | Demotion and Slashing Mechanism                | [Polebug](mailto:polebug@rss3.io)                                                                                                                                                                                                                                                                       | Core     | Draft     |
 | [REP-40](./REPs/REP-40.md) | Whitepaper Updates                             | [pseudoyu](mailto:pseudoyu@connect.hku.hk)                                                                                                                                                                                                                                                              | Core     | Candidate |
 | [REP-43](./REPs/REP-43.md) | Introducing Payment Processor for Request Fees | [Nya Candy](mailto:dev@candinya.com)                                                                                                                                                                                                                                                                    | Core     | Review    |
diff --git a/REPs/REP-33.md b/REPs/REP-33.md
index 064d6d2..0b6add1 100644
--- a/REPs/REP-33.md
+++ b/REPs/REP-33.md
@@ -1,7 +1,7 @@
 ```
 REP: REP-33
 Title: Node State Transition
-Status: Review
+Status: Candidate
 Type: Core
 Created: 19 Jul 2024
 Author(s): KallyDev <kallydev@rss3.io>, BruceXC <xichang1510@gmail.com>
@@ -19,6 +19,7 @@ Discussions: https://forum.rss3.io/t/proposal-on-node-state-transition/173
   - [Node State Transition Path](#node-state-transition-path)
   - [Reward Mechanism](#reward-mechanism)
 - [Rationale](#rationale)
+- [Reference Implementations](#reference-implementations)
 
 ## Abstract
 
@@ -67,3 +68,7 @@ Nodes in `Online`, `Initializing`, `Slashing` or `Exiting` states are eligible t
 ## Rationale
 
 The core objective of this proposal is to standardize Node states, improve clarity, and simplify maintenance. This proposal will ensure consistent operations across the Network, enable efficient troubleshooting, and provide a solid foundation for future enhancements.
+
+## Reference Implementations
+
+1. Upgraded contract : <https://scan.rss3.io/address/0x1FF6c3BC97841a3DF41e51Fc19223252ba373728>