diff --git a/contracts/SLI/Git3Hub.sol b/contracts/SLI/Git3Hub.sol
index 4d1e0a3..f496811 100644
--- a/contracts/SLI/Git3Hub.sol
+++ b/contracts/SLI/Git3Hub.sol
@@ -64,6 +64,19 @@ contract Git3Hub_SLI is Git3HubStorage_SLI {
         pathToHash[keccak256(bytes.concat(repoName, "/", path))] = data;
     }
 
+    function batchUpload(
+        bytes memory repoName,
+        bytes[] memory path,
+        bytes[] calldata data
+    ) external payable onlyOwner(repoName) {
+        require(path.length == data.length, "path and data length mismatch");
+        for (uint i = 0; i < path.length; i++) {
+            pathToHash[keccak256(bytes.concat(repoName, "/", path[i]))] = data[
+                i
+            ];
+        }
+    }
+
     function remove(
         bytes memory repoName,
         bytes memory path
diff --git a/contracts/nameservice/NameService.sol b/contracts/nameservice/NameService.sol
new file mode 100644
index 0000000..b2fc7f2
--- /dev/null
+++ b/contracts/nameservice/NameService.sol
@@ -0,0 +1,42 @@
+//SPDX-License-Identifier: GPL-3.0
+pragma solidity ^0.8.0;
+
+contract Git3NameService {
+    mapping(string => address) public nameHub;
+    mapping(string => address) public nameOwner;
+    string[] public nameList;
+
+    mapping(address => mapping(string => string)) public HubRecords;
+
+    constructor() {}
+
+    modifier onlyHubOwner(string memory name) {
+        require(nameOwner[name] == msg.sender, "Only name owner can do this");
+        _;
+    }
+
+    function registerHub(string memory name, address hub) public {
+        require(nameHub[name] == address(0), "Name already registered");
+        nameHub[name] = hub;
+        nameOwner[name] = msg.sender;
+        nameList.push(name);
+    }
+
+    function nameListLength() public view returns (uint256) {
+        return nameList.length;
+    }
+
+    function rebindHubAddress(
+        string memory name,
+        address hub
+    ) public onlyHubOwner(name) {
+        nameHub[name] = hub;
+    }
+
+    function transferNameOwner(
+        string memory name,
+        address newOwner
+    ) public onlyHubOwner(name) {
+        nameOwner[name] = newOwner;
+    }
+}
diff --git a/scripts/deploy-ns.ts b/scripts/deploy-ns.ts
new file mode 100644
index 0000000..653e564
--- /dev/null
+++ b/scripts/deploy-ns.ts
@@ -0,0 +1,31 @@
+import { ethers } from "hardhat";
+
+async function main() {
+  let provider = ethers.provider;
+  let [operator] = await ethers.getSigners();
+  let nonce = await operator.getTransactionCount();
+  console.log(operator.address, nonce, await operator.getBalance());
+
+  let price = await provider.getFeeData();
+  let net = await provider.getNetwork();
+  console.log(price, net.chainId);
+
+  const Nameservice = await ethers.getContractFactory("Git3NameService");
+  const ns = await Nameservice.deploy({
+    nonce: nonce,
+    type: 2,
+    maxFeePerGas: price.maxFeePerGas!,
+    maxPriorityFeePerGas: price.maxPriorityFeePerGas!,
+  });
+
+  let receipt = await ns.deployed();
+  console.log(receipt.deployTransaction.hash);
+  console.log("NS Contract", ns.address);
+}
+
+// We recommend this pattern to be able to use async/await everywhere
+// and properly handle errors.
+main().catch((error) => {
+  console.error(error);
+  process.exitCode = 1;
+});
diff --git a/scripts/deploy-sli.ts b/scripts/deploy-sli.ts
index 346a4d4..3f74174 100644
--- a/scripts/deploy-sli.ts
+++ b/scripts/deploy-sli.ts
@@ -16,7 +16,6 @@ async function main() {
     type: 2,
     maxFeePerGas: price.maxFeePerGas!,
     maxPriorityFeePerGas: price.maxPriorityFeePerGas!,
-    gasLimit: 3000000,
   });
 
   let logicReceipt = await git3.deployed();