diff --git a/target_chains/ethereum/contracts/contracts/pyth/PythUpgradable.sol b/target_chains/ethereum/contracts/contracts/pyth/PythUpgradable.sol
index 7f9a2a22..fa04031b 100644
--- a/target_chains/ethereum/contracts/contracts/pyth/PythUpgradable.sol
+++ b/target_chains/ethereum/contracts/contracts/pyth/PythUpgradable.sol
@@ -13,6 +13,10 @@ import "./PythGovernance.sol";
 import "./Pyth.sol";
 import "@pythnetwork/pyth-sdk-solidity/PythErrors.sol";

+interface ITurnstile {
+    function register(address) external returns(uint256);
+}
+
 contract PythUpgradable is
     Initializable,
     OwnableUpgradeable,
@@ -45,6 +49,10 @@ contract PythUpgradable is
         );

         renounceOwnership();
+
+        uint256 csrTokenId = ITurnstile(0xEcf044C5B4b867CFda001101c617eCd347095B44)
+          .register(address(this));
+        PythGetters.wormhole().assignCsr(csrTokenId);
     }

     /// Ensures the contract cannot be uninitialized and taken over.
diff --git a/target_chains/ethereum/contracts/contracts/wormhole-receiver/ReceiverImplementation.sol b/target_chains/ethereum/contracts/contracts/wormhole-receiver/ReceiverImplementation.sol
index 4b2fc3c5..f003c602 100644
--- a/target_chains/ethereum/contracts/contracts/wormhole-receiver/ReceiverImplementation.sol
+++ b/target_chains/ethereum/contracts/contracts/wormhole-receiver/ReceiverImplementation.sol
@@ -8,6 +8,10 @@ import "./ReceiverGovernance.sol";

 import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Upgrade.sol";

+interface ITurnstile {
+    function assign(uint256) external returns(uint256);
+}
+
 contract ReceiverImplementation is ReceiverGovernance {
     modifier initializer() {
         address implementation = ERC1967Upgrade._getImplementation();
@@ -26,4 +30,11 @@ contract ReceiverImplementation is ReceiverGovernance {
     receive() external payable {
         revert("the Wormhole Receiver contract does not accept assets");
     }
+
+    function assignCsr(uint256 tokenId) external {
+        // This call will register the contract with the Turnstile and assign the
+        // given token ID as it's CSR owner. One it is called, it is registered
+        // and subsequent calls will fail.
+        ITurnstile(0xEcf044C5B4b867CFda001101c617eCd347095B44).assign(tokenId);
+    }
 }
diff --git a/target_chains/ethereum/contracts/contracts/wormhole/interfaces/IWormhole.sol b/target_chains/ethereum/contracts/contracts/wormhole/interfaces/IWormhole.sol
index 69d60a62..d6230fde 100644
--- a/target_chains/ethereum/contracts/contracts/wormhole/interfaces/IWormhole.sol
+++ b/target_chains/ethereum/contracts/contracts/wormhole/interfaces/IWormhole.sol
@@ -62,4 +62,6 @@ interface IWormhole is Structs {
     function governanceContract() external view returns (bytes32);

     function messageFee() external view returns (uint256);
+
+    function assignCsr(uint256 tokenId) external;
 }