diff --git a/.github/workflows/js_sdk_ci.yml b/.github/workflows/js_sdk_ci.yml
index 4fc8e831..97f31c87 100644
--- a/.github/workflows/js_sdk_ci.yml
+++ b/.github/workflows/js_sdk_ci.yml
@@ -22,9 +22,9 @@ jobs:
       - uses: actions/cache@v2
         with:
           path: ~/.npm
-          key: ${{ runner.os }}-node-${{ matrix.node-version }}-${{ hashFiles('**/package-lock.json') }}
+          key: ${{ runner.os }}-v1-node-${{ matrix.node-version }}-${{ hashFiles('**/package-lock.json') }}
           restore-keys: |
-            ${{ runner.os }}-node-${{ matrix.node-version }}
+            ${{ runner.os }}-v1-node-${{ matrix.node-version }}
 
       - name: Setup Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v1
diff --git a/src/__test__/unit/air.spec.ts b/src/__test__/unit/air.spec.ts
index 92a5f4f9..2f4fd753 100644
--- a/src/__test__/unit/air.spec.ts
+++ b/src/__test__/unit/air.spec.ts
@@ -1,4 +1,5 @@
 import { createLocalClient } from '../connection';
+import {subscribeForErrors} from "../../api";
 
 describe('== AIR suite', () => {
     it('check init_peer_id', async function () {
@@ -59,7 +60,7 @@ describe('== AIR suite', () => {
     it('call script without ttl', async function () {
         // arrange
         const client = await createLocalClient();
-        const script = `(call %init_peer_id% ("" "") [""])`;
+        const script = `(call %init_peer_id% ("op" "identity") [""])`;
 
         // act
         const promise = client.sendScript(script, undefined, 1);
diff --git a/src/internal/particle.ts b/src/internal/particle.ts
index c622e3ae..0bc949ef 100644
--- a/src/internal/particle.ts
+++ b/src/internal/particle.ts
@@ -147,12 +147,11 @@ export async function build(
         timestamp: currentTime,
         ttl: ttl,
         script: script,
+        // TODO: sign particle
         signature: '',
         data: Buffer.from([]),
     };
 
-    particle.signature = await signParticle(peerId, particle);
-
     return particle;
 }
 
@@ -187,33 +186,6 @@ export function parseParticle(str: string): ParticleDto {
     };
 }
 
-export function canonicalBytes(particle: ParticleDto) {
-    let peerIdBuf = Buffer.from(particle.init_peer_id, 'utf8');
-    let idBuf = Buffer.from(particle.id, 'utf8');
-
-    let tsArr = new ArrayBuffer(8);
-    new DataView(tsArr).setBigUint64(0, BigInt(particle.timestamp));
-    let tsBuf = Buffer.from(tsArr);
-
-    let ttlArr = new ArrayBuffer(4);
-    new DataView(ttlArr).setUint32(0, particle.ttl);
-    let ttlBuf = Buffer.from(ttlArr);
-
-    let scriptBuf = Buffer.from(particle.script, 'utf8');
-
-    return Buffer.concat([peerIdBuf, idBuf, tsBuf, ttlBuf, scriptBuf]);
-}
-
-/**
- * Sign a particle with a private key from peerId.
- */
-export async function signParticle(peerId: PeerId, particle: ParticleDto): Promise<string> {
-    let bufToSign = canonicalBytes(particle);
-
-    let signature = await peerId.privKey.sign(bufToSign);
-    return encode(signature);
-}
-
 export function genUUID() {
     return uuidv4();
 }