diff --git a/backend/src/blockchain.ts b/backend/src/blockchain.ts
index 60d12bc..1c1ef63 100644
--- a/backend/src/blockchain.ts
+++ b/backend/src/blockchain.ts
@@ -24,6 +24,10 @@ export enum ValidatorStatus {
   UNKNOWN = 'UNKNOWN',
 }
 
+function convertNimiqTimestamp(timestamp: bigint): number {
+  return Number(timestamp);
+}
+
 /**
  * Gets the RPC client to retrieve data from the blockchain
  * @returns
@@ -84,16 +88,16 @@ export async function getBlock(blockNumber: number) {
  * @returns
  */
 
-async function getPaymentTime(amount: number, timestamp: bigint) {
+async function getPaymentTime(amount: number, timestamp: number) {
   const price = await getDollarPriceHistory(timestamp);
   const transactionValue = lunaToNim(amount) * price;
   if (transactionValue > periodCost * (1 - tolerance)) {
-    return BigInt(period);
+    return period;
   } else {
     console.log('Payment not close to tolerance. Not processing. ');
   }
 
-  return 0n;
+  return 0;
 }
 
 /**
@@ -127,14 +131,21 @@ export async function getPaymentStatus(address: Address): Promise<any> {
     }
   }
   valdatorPayemnts.sort((a, b) => (a.timestamp > b.timestamp ? 1 : -1));
-  let paymentEndTS: bigint = 0n;
+  let paymentEndTS: number = 0;
   for (const payment of valdatorPayemnts) {
-    if (payment.timestamp > paymentEndTS) {
-      const addedTime = await getPaymentTime(payment.value, payment.timestamp);
-      paymentEndTS = payment.timestamp + addedTime;
+    if (convertNimiqTimestamp(payment.timestamp) > paymentEndTS) {
+      const addedTime = await getPaymentTime(
+        payment.value,
+        convertNimiqTimestamp(payment.timestamp),
+      );
+      paymentEndTS = convertNimiqTimestamp(payment.timestamp) + addedTime;
     } else {
       paymentEndTS =
-        paymentEndTS + (await getPaymentTime(payment.value, payment.timestamp));
+        paymentEndTS +
+        (await getPaymentTime(
+          payment.value,
+          convertNimiqTimestamp(payment.timestamp),
+        ));
     }
   }
   return paymentEndTS;
diff --git a/backend/src/pricing.ts b/backend/src/pricing.ts
index 270fef2..f57b368 100644
--- a/backend/src/pricing.ts
+++ b/backend/src/pricing.ts
@@ -8,24 +8,20 @@ export function nimToLuna(amount: number): number {
   return Math.round(amount * 1e5);
 }
 
-function getSecondsTimestamp(timestamp: bigint): number {
-  return Number(timestamp / 1000n);
-}
-
 /**
  * Returns the price given a timestamp. TODO: INACCURATE as coingecko only returns the price of the day
  * Caches prices in node-persist
  * @param timestamp
  * @returns
  */
-export async function getDollarPriceHistory(timestamp: bigint) {
+export async function getDollarPriceHistory(timestamp: number) {
   await storage.init();
   if ((await storage.getItem(timestamp.toString())) !== undefined) {
     console.log('Found price in cache');
     return await storage.getItem(timestamp.toString());
   }
 
-  const date = new Date(getSecondsTimestamp(timestamp));
+  const date = new Date(timestamp);
   const datestring = `${date.getDate()}-${
     date.getMonth() + 1
   }-${date.getFullYear()}`; // 30-12-2022