diff --git a/random_request_cid b/random_request_cid
index affa806..654ee9b 100644
--- a/random_request_cid
+++ b/random_request_cid
@@ -1 +1 @@
-bafkreih6hhv5m44xz6fhklhqhcpdgd3znrs6w5332trjxb3qz5ychjy4se
\ No newline at end of file
+bafkreih6hhv5m44xz6fhklhqhcpdgd3znrs6w5332trjxb3qz5ychjy4se
diff --git a/random_request_cid.js b/random_request_cid.js
new file mode 100644
index 0000000..aa706a2
--- /dev/null
+++ b/random_request_cid.js
@@ -0,0 +1 @@
+export const cidBuffer = 'bafkreicnannsz4gqqk3ccfwfd3z2hfzonr63z3hgsplefgrmz37psay23y';
\ No newline at end of file
diff --git a/scripts/utils.ts b/scripts/utils.ts
index 16668e4..0f87228 100644
--- a/scripts/utils.ts
+++ b/scripts/utils.ts
@@ -1,7 +1,6 @@
 import dotenv from 'dotenv';
 dotenv.config();
 import { Cache, Field, Mina, PrivateKey, PublicKey } from 'o1js';
-import * as fs from 'fs';
 import {
   LotteryAction,
   TicketReduceProgram,
@@ -16,6 +15,7 @@ import { ZkOnCoordinatorAddress } from '../src/constants.js';
 import { RandomManagerManager } from '../src/StateManager/RandomManagerManager.js';
 import { FactoryManager } from '../src/StateManager/FactoryStateManager.js';
 import { PlotteryFactory } from '../src/Factory.js';
+import { cidBuffer } from '../random_request_cid.js';
 
 export const configDefaultInstance = (): { transactionFee: number } => {
   const transactionFee = 100_000_000;
@@ -198,7 +198,5 @@ export const getIPFSCID = (): { hashPart1: Field; hashPart2: Field } => {
     return { hashPart1, hashPart2 };
   }
 
-  let cidBuffer = fs.readFileSync('./random_request_cid');
-
   return segmentHash(cidBuffer.toString());
 };
diff --git a/src/Factory.ts b/src/Factory.ts
index 6c83194..23700f5 100644
--- a/src/Factory.ts
+++ b/src/Factory.ts
@@ -16,7 +16,7 @@ import {
   Cache,
   UInt32,
 } from 'o1js';
-import fs from 'fs';
+import { vkJSON } from '../vk';
 import { BLOCK_PER_ROUND } from './constants.js';
 import { MerkleMap20 } from './Structs/CustomMerkleMap.js';
 import { RandomManager } from './Random/RandomManager.js';
@@ -36,9 +36,6 @@ const emptyMerkleMapRoot = new MerkleMap().getRoot();
 //   cache: Cache.FileSystem('cache'),
 // });
 
-let vkString = fs.readFileSync('./vk.json').toString();
-let vkJSON = JSON.parse(vkString);
-
 const randomManagerVK = {
   hash: Field(vkJSON.randomManagerVK.hash),
   data: vkJSON.randomManagerVK.data,
diff --git a/src/util.ts b/src/util.ts
index 1994074..1b9fc70 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -1,4 +1,4 @@
-import * as fs from 'fs';
+// import * as fs from 'fs';
 
 import {
   Field,
@@ -15,6 +15,7 @@ import {
 import { MerkleMap20 } from './Structs/CustomMerkleMap.js';
 // import { PackedUInt32Factory } from 'o1js-pack';
 import { StringCircuitValue } from 'zkon-zkapp';
+import { cidBuffer } from '../random_request_cid.js';
 
 const MAX_BITS_PER_FIELD = 254n;
 const L = 7; // 7 32-bit uints fit in one Field
@@ -197,7 +198,5 @@ export const getIPFSCID = (): { hashPart1: Field; hashPart2: Field } => {
     return { hashPart1, hashPart2 };
   }
 
-  let cidBuffer = fs.readFileSync('./random_request_cid');
-
   return segmentHash(cidBuffer.toString());
 };
diff --git a/vk.json b/vk.js
similarity index 99%
rename from vk.json
rename to vk.js
index bbd3478..8f8126e 100644
--- a/vk.json
+++ b/vk.js
@@ -1,4 +1,4 @@
-{
+export const vkJSON = {
   "randomManagerVK": {
     "hash": "17330540658263117468185091323910434567490388801197480248529120280889605935477",
     "data": "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"