diff --git a/src/feeder.ts b/src/feeder.ts
index ddef714..9c73a5c 100644
--- a/src/feeder.ts
+++ b/src/feeder.ts
@@ -28,15 +28,19 @@ if (cluster.isPrimary) {
   console.log("Feeding the server...");
   const data = readFileSync(TESTNET_CSV, 'utf8')
   const lines = data.split('\n').map(line => {
-    const [ from, to, weight ] = line.split(' ')
-    return { from, to, weight }
-  }).filter(line => line.from !== 'from' && line.from !== '');
+    const [ fromStr, toStr, amountStr ] = line.split(' ')
+    return {
+      from: parseInt(fromStr),
+      to: parseInt(toStr),
+      amount: parseFloat(amountStr)
+    };
+  }).filter(obj => !isNaN(obj.from) && !isNaN(obj.to) && !isNaN(obj.amount));
   for (let lineNo = mod; lineNo < lines.length; lineNo += numCPUs) {
     // console.log(process.pid, mod, lineNo, cumm);
     let cmd;
-    if (lines[lineNo].from === '0') {
+    if (lines[lineNo].from === 0) {
       cmd = 'DISBURSEMENT';
-    } else if (lines[lineNo].to === '0') {
+    } else if (lines[lineNo].to === 0) {
       cmd = 'RECLAMATION';
     } else {
       cmd = 'STANDARD';
diff --git a/src/inmem.ts b/src/inmem.ts
index 304fa37..a3f482f 100644
--- a/src/inmem.ts
+++ b/src/inmem.ts
@@ -7,7 +7,7 @@ export class InMemStores {
   constructor() {
     this.balances = {};
   }
-  ensureBalance(thisParty: string, otherParty: string): void {
+  ensureBalance(thisParty: number, otherParty: number): void {
     if (typeof this.balances[thisParty] === 'undefined') {
         this.balances[thisParty] = {};
     }
@@ -21,7 +21,7 @@ export class InMemStores {
   async disconnect(): Promise<void> {
     // noop
 }
-  async storeTransaction({ thisParty, otherParty, amount }: { thisParty: string, otherParty: string, amount: number }): Promise<number> {
+  async storeTransaction({ thisParty, otherParty, amount }: { thisParty: number, otherParty: number, amount: number }): Promise<number> {
     this.ensureBalance(thisParty, otherParty);
     this.balances[thisParty][otherParty] += amount;
     return this.balances[thisParty][otherParty];
diff --git a/src/redis.ts b/src/redis.ts
index c10bcdc..cdc4af0 100644
--- a/src/redis.ts
+++ b/src/redis.ts
@@ -14,7 +14,7 @@ export class RedisStores {
   async disconnect(): Promise<void> {
     await this.client.quit();
   }
-  async storeTransaction({ thisParty, otherParty, amount }: { thisParty: string, otherParty: string, amount: number }): Promise<number> {
+  async storeTransaction({ thisParty, otherParty, amount }: { thisParty: number, otherParty: number, amount: number }): Promise<number> {
     // don't wait for this to finish:
     this.client.incrByFloat(`${thisParty}:${otherParty}`, amount);
     // console.log('stored transaction', thisParty, otherParty, amount, newValueString);
diff --git a/src/tigerbeetle.ts b/src/tigerbeetle.ts
index eb7d7b2..92165a4 100644
--- a/src/tigerbeetle.ts
+++ b/src/tigerbeetle.ts
@@ -4,7 +4,7 @@ export class TigerBeetleStores {
     client;
     constructor() {
     }
-    async ensureBalance(thisParty: string, otherParty: string): Promise<{ ledgerId: bigint, thisPartyId: bigint, otherPartyId: bigint}> {
+    async ensureBalance(thisParty: number, otherParty: number): Promise<{ ledgerId: bigint, thisPartyId: bigint, otherPartyId: bigint}> {
       // `thisParty` is 1,2,3,... and is multiplied by 1,000,000 to create the ledgerId.
       // It is multiplied by 1,000,001 to create thisPartyId.
       // `otherParty` is 0,1,2,3,... (where 0 is the bank for DISBURSEMENT and RECLAMATION) and
@@ -13,9 +13,9 @@ export class TigerBeetleStores {
       // ledgerId: 37,000,000
       // thisPartyId: 37,000,037
       // otherPartyId: 37,054,235
-      const ledgerId = BigInt(parseInt(thisParty)) * BigInt(1000 * 1000);
-      const thisPartyId = BigInt(parseInt(thisParty)) * BigInt(1000 * 1000 + 1);
-      const otherPartyId = BigInt(parseInt(otherParty)) * BigInt(1000 * 1000 + 1);
+      const ledgerId = BigInt(thisParty) * BigInt(1000 * 1000);
+      const thisPartyId = BigInt(thisParty) * BigInt(1000 * 1000 + 1);
+      const otherPartyId = BigInt(otherParty) * BigInt(1000 * 1000 + 1);
       
       const mainAccount = {
         id: thisPartyId,
@@ -71,7 +71,7 @@ export class TigerBeetleStores {
     async disconnect(): Promise<void> {
       // noop
   }
-    async storeTransaction({ thisParty, otherParty, amount }: { thisParty: string, otherParty: string, amount: number }): Promise<number> {
+    async storeTransaction({ thisParty, otherParty, amount }: { thisParty: number, otherParty: number, amount: number }): Promise<number> {
       const absAmount = Math.abs(amount);
       const firstChunk = Math.round(absAmount);
       const afterFirst = 1000 * 1000 * (absAmount - firstChunk);