diff --git a/.vscode/settings.json b/.vscode/settings.json
index c46432c1bf..0145107988 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,7 +2,9 @@
     "liveServer.settings.port": 5502,
     "todo-tree.tree.scanMode": "workspace",
     "conventionalCommits.scopes": [
-        "contracts-sdk"
+        "contracts-sdk",
+        "lit-node-client-nodejs",
+        "core",
     ],
     // "restoreTerminals.terminals": [
     //     {
diff --git a/apps/html/manual_tests.html b/apps/html/manual_tests.html
index 06745152d5..8ee3d22511 100644
--- a/apps/html/manual_tests.html
+++ b/apps/html/manual_tests.html
@@ -44,7 +44,7 @@
       var CheckAndSignAuthMessageWithBlockhash = async() => {
         // Currently this will be undefined but later we should replace it with the hardcoded blockhash
         const TEST_BLOCKHASH = "0xfe88c94d860f01a17f961bf4bdfb6e0c6cd10d3fda5cc861e805ca1240c58553";
-        const nonce = litNodeClient.getLatestBlockhash() || TEST_BLOCKHASH;
+        const nonce = await litNodeClient.getLatestBlockhash() || TEST_BLOCKHASH;
 
         const authSig = await LitJsSdk.checkAndSignAuthMessage({
             chain: "ethereum",
diff --git a/apps/react/src/app/lit-node-client-page.tsx b/apps/react/src/app/lit-node-client-page.tsx
index 1e0ac3c2ee..047e6ed5f7 100644
--- a/apps/react/src/app/lit-node-client-page.tsx
+++ b/apps/react/src/app/lit-node-client-page.tsx
@@ -41,7 +41,7 @@ const LitNodeClientPage = () => {
       debug: true,
     });
 
-    const latestBlockhash = client.getLatestBlockhash();
+    const latestBlockhash = await client.getLatestBlockhash();
 
     const authsig = await authBrowser.checkAndSignAuthMessage({
       chain: 'ethereum',
diff --git a/e2e-nodejs/0_manual-tests/test-block-has-update-after-exp.mjs b/e2e-nodejs/0_manual-tests/test-block-has-update-after-exp.mjs
index e9e831022d..010864d571 100644
--- a/e2e-nodejs/0_manual-tests/test-block-has-update-after-exp.mjs
+++ b/e2e-nodejs/0_manual-tests/test-block-has-update-after-exp.mjs
@@ -18,7 +18,7 @@ export async function main() {
   console.log(client.hdRootPubkeys);
   let subnetKey = '' + client.subnetPubKey;
   let rootKeys = client.hdRootPubkeys;
-  let blockhash = client.getLatestBlockhash();
+  let blockhash = await client.getLatestBlockhash();
   await new Promise((resolve, _reject) => {
     setTimeout(resolve, 35_000);
   });
diff --git a/e2e-nodejs/group-connection/test-latest-blockhash.mjs b/e2e-nodejs/group-connection/test-latest-blockhash.mjs
new file mode 100644
index 0000000000..13e6161533
--- /dev/null
+++ b/e2e-nodejs/group-connection/test-latest-blockhash.mjs
@@ -0,0 +1,32 @@
+import path from 'path';
+import { success, fail, testThis } from '../../tools/scripts/utils.mjs';
+import LITCONFIG from '../../lit.config.json' assert { type: 'json' };
+import { LitNodeClient } from '@lit-protocol/lit-node-client';
+
+const LIT_NETWORK = 'cayenne';
+
+export async function main() {
+  // ==================== Test Logic ====================
+  const client = new LitNodeClient({
+    litNetwork: globalThis.LitCI.network,
+    debug: globalThis.LitCI.debug,
+    checkNodeAttestation: globalThis.LitCI.sevAttestation,
+  });
+  await client.connect();
+
+  const latestBlockhash = await litNodeClient.getLatestBlockhash();
+
+  // ==================== Post-Validation ====================
+  if (!latestBlockhash) {
+    return fail('latest blockhash not found');
+  }
+
+  if (!latestBlockhash.startsWith('0x')) {
+    return fail('latest blockhash not in hex format');
+  }
+
+  // ==================== Success ====================
+  return success(`Latest blockhash found: ${latestBlockhash}`);
+}
+
+await testThis({ name: path.basename(import.meta.url), fn: main });
diff --git a/e2e-nodejs/group-hotwallet-with-blockhash/test-hotwallet-with-blockhash.mjs b/e2e-nodejs/group-hotwallet-with-blockhash/test-hotwallet-with-blockhash.mjs
index 7e7ce45ff3..0770662b5d 100644
--- a/e2e-nodejs/group-hotwallet-with-blockhash/test-hotwallet-with-blockhash.mjs
+++ b/e2e-nodejs/group-hotwallet-with-blockhash/test-hotwallet-with-blockhash.mjs
@@ -62,7 +62,7 @@ export async function main() {
   });
   await litNodeClient.connect();
 
-  let nonce = litNodeClient.getLatestBlockhash();
+  let nonce = await litNodeClient.getLatestBlockhash();
   console.log('Eth blockhash nonce- ', nonce);
 
   if (!nonce) {
diff --git a/e2e-nodejs/group-latest-blockhash-update/test-block-has-update-after-exp.mjs b/e2e-nodejs/group-latest-blockhash-update/test-block-has-update-after-exp.mjs
index e9e831022d..010864d571 100644
--- a/e2e-nodejs/group-latest-blockhash-update/test-block-has-update-after-exp.mjs
+++ b/e2e-nodejs/group-latest-blockhash-update/test-block-has-update-after-exp.mjs
@@ -18,7 +18,7 @@ export async function main() {
   console.log(client.hdRootPubkeys);
   let subnetKey = '' + client.subnetPubKey;
   let rootKeys = client.hdRootPubkeys;
-  let blockhash = client.getLatestBlockhash();
+  let blockhash = await client.getLatestBlockhash();
   await new Promise((resolve, _reject) => {
     setTimeout(resolve, 35_000);
   });
diff --git a/e2e-nodejs/group-pkp-encryption-decryption/test-pkp-encryption-decryption-nodes.mjs b/e2e-nodejs/group-pkp-encryption-decryption/test-pkp-encryption-decryption-nodes.mjs
index 061c4ff951..8790a72750 100644
--- a/e2e-nodejs/group-pkp-encryption-decryption/test-pkp-encryption-decryption-nodes.mjs
+++ b/e2e-nodejs/group-pkp-encryption-decryption/test-pkp-encryption-decryption-nodes.mjs
@@ -58,7 +58,7 @@ export async function main() {
     uri: 'https://localhost/login',
     version: '1',
     chainId: 1,
-    nonce: litNodeClient.getLatestBlockhash(),
+    nonce: await litNodeClient.getLatestBlockhash(),
     expirationTime: new Date(Date.now() + 60_000 * 60).toISOString(),
   });
   const messageToSign = siweMessage.prepareMessage();
diff --git a/e2e-nodejs/loader.mjs b/e2e-nodejs/loader.mjs
index ade935863e..fecfaca878 100644
--- a/e2e-nodejs/loader.mjs
+++ b/e2e-nodejs/loader.mjs
@@ -36,7 +36,7 @@ if (loadEnv) {
 
   await litNodeClient.connect();
 
-  let nonce = litNodeClient.getLatestBlockhash();
+  let nonce = await litNodeClient.getLatestBlockhash();
   console.log('GENERATED NONCE: ', nonce);
 
   const domain = 'localhost';
diff --git a/packages/core/package.json b/packages/core/package.json
index 2555d07688..b99558a880 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -24,7 +24,5 @@
   },
   "tags": [
     "universal"
-  ],
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  ]
 }
diff --git a/packages/core/src/lib/lit-core.ts b/packages/core/src/lib/lit-core.ts
index bba32ebaa0..54234bced2 100644
--- a/packages/core/src/lib/lit-core.ts
+++ b/packages/core/src/lib/lit-core.ts
@@ -484,6 +484,23 @@ export class LitCore {
   };
 
   /**
+   * Return the latest blockhash from the nodes
+   * @returns { Promise<string> } latest blockhash
+   */
+  getLatestBlockhash = async (): Promise<string> => {
+    await this.connect();
+
+    if (!this.latestBlockhash) {
+      throw new Error(
+        `latestBlockhash is not available. Received: "${this.latestBlockhash}"`
+      );
+    }
+
+    return this.latestBlockhash;
+  };
+
+  /**
+   *
    * Connect to the LIT nodes
    *
    * @returns { Promise } A promise that resolves when the nodes are connected.
diff --git a/packages/lit-auth-client/package.json b/packages/lit-auth-client/package.json
index ef1487bed5..aacb7265e3 100644
--- a/packages/lit-auth-client/package.json
+++ b/packages/lit-auth-client/package.json
@@ -29,7 +29,5 @@
     "@simplewebauthn/browser": "^7.2.0",
     "@simplewebauthn/typescript-types": "^7.0.0",
     "nanoid": "3.3.4"
-  },
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  }
 }
diff --git a/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts b/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts
index 3c5b9de0cd..46e053b884 100644
--- a/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts
+++ b/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts
@@ -28,6 +28,7 @@ import {
 } from '@lit-protocol/constants';
 import { LitCore } from '@lit-protocol/core';
 import {
+  checkSevSnpAttestation,
   combineEcdsaShares,
   combineSignatureShares,
   encrypt,
@@ -80,6 +81,7 @@ import type {
   GetSigningShareForDecryptionRequest,
   GetWalletSigProps,
   JsonExecutionRequest,
+  JsonHandshakeResponse,
   JsonPkpSignRequest,
   LitClientSessionManager,
   LitNodeClientConfig,
@@ -253,7 +255,7 @@ export class LitNodeClientNodeJs
       throw new Error('Failed to verify capabilities for resource');
     }
 
-    const nonce = this.getLatestBlockhash();
+    const nonce = await this.getLatestBlockhash();
 
     // -- get auth sig
     let siweMessage = new siwe.SiweMessage({
@@ -474,25 +476,6 @@ export class LitNodeClientNodeJs
     return LitNodeClientNodeJs.getExpiration();
   };
 
-  /**
-   * returns the latest block hash.
-   * will call refresh if the block hash is expired
-   * @returns {Promise<string>} latest block hash from `handhsake` with the lit network.
-   */
-  getLatestBlockhash = (): string => {
-    if (!this.ready) {
-      logError('Client not connected, remember to call connect');
-      throwError({
-        message: 'Client not connected',
-        errorKind: LIT_ERROR.LIT_NODE_CLIENT_NOT_READY_ERROR.kind,
-        errorCode: LIT_ERROR.LIT_NODE_CLIENT_NOT_READY_ERROR.code,
-      });
-    }
-
-    // we are confident in this value being non null so we return
-    return this.latestBlockhash!;
-  };
-
   /**
    *
    * Get the signature from local storage, if not, generates one
diff --git a/packages/logger/package.json b/packages/logger/package.json
index f0c9a48977..3dba07e3e3 100644
--- a/packages/logger/package.json
+++ b/packages/logger/package.json
@@ -8,7 +8,5 @@
   "publishConfig": {
     "access": "public",
     "directory": "../../dist/packages/logger"
-  },
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  }
 }
diff --git a/packages/pkp-base/package.json b/packages/pkp-base/package.json
index 38668abe41..65d348ed34 100644
--- a/packages/pkp-base/package.json
+++ b/packages/pkp-base/package.json
@@ -24,7 +24,5 @@
   },
   "tags": [
     "universal"
-  ],
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  ]
 }
diff --git a/packages/pkp-client/package.json b/packages/pkp-client/package.json
index 279c63cc19..e878e25885 100644
--- a/packages/pkp-client/package.json
+++ b/packages/pkp-client/package.json
@@ -24,7 +24,5 @@
   },
   "tags": [
     "universal"
-  ],
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  ]
 }
diff --git a/packages/pkp-cosmos/package.json b/packages/pkp-cosmos/package.json
index e5e02b9723..a88af68255 100644
--- a/packages/pkp-cosmos/package.json
+++ b/packages/pkp-cosmos/package.json
@@ -24,7 +24,5 @@
   },
   "tags": [
     "universal"
-  ],
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  ]
 }
diff --git a/packages/pkp-sui/package.json b/packages/pkp-sui/package.json
index 252e9c74a2..0b5cbbeb78 100644
--- a/packages/pkp-sui/package.json
+++ b/packages/pkp-sui/package.json
@@ -24,7 +24,5 @@
   },
   "tags": [
     "universal"
-  ],
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  ]
 }
diff --git a/packages/pkp-walletconnect/package.json b/packages/pkp-walletconnect/package.json
index 3c72456bd8..9729b4d707 100644
--- a/packages/pkp-walletconnect/package.json
+++ b/packages/pkp-walletconnect/package.json
@@ -31,7 +31,5 @@
   },
   "tags": [
     "universal"
-  ],
-  "main": "./dist/src/index.js",
-  "typings": "./dist/src/index.d.ts"
+  ]
 }