diff --git a/dist/cli.js b/dist/cli.js
index ed54605..0d5b4b3 100644
--- a/dist/cli.js
+++ b/dist/cli.js
@@ -182300,7 +182300,8 @@ class BaseEventsService {
     };
   }
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  validateEvents({ events, lastBlock }) {
+  async validateEvents({ events, lastBlock }) {
+    return void 0;
   }
   /**
    * Handle saving events
@@ -182331,29 +182332,32 @@ class BaseEventsService {
       return !hasEvent;
     });
     const lastBlock = newEvents.lastBlock || allEvents[allEvents.length - 1]?.blockNumber;
-    this.validateEvents({ events: allEvents, lastBlock });
+    const validateResult = await this.validateEvents({ events: allEvents, lastBlock });
     if (savedEvents.fromCache || newEvents.events.length) {
       await this.saveEvents({ events: allEvents, lastBlock });
     }
     return {
       events: allEvents,
-      lastBlock
+      lastBlock,
+      validateResult
     };
   }
 }
 class BaseTornadoService extends BaseEventsService {
   amount;
   currency;
+  merkleTreeService;
   batchTransactionService;
   batchBlockService;
   constructor(serviceConstructor) {
-    const { Tornado: contract, amount, currency, provider } = serviceConstructor;
+    const { Tornado: contract, amount, currency, provider, merkleTreeService } = serviceConstructor;
     super({
       ...serviceConstructor,
       contract
     });
     this.amount = amount;
     this.currency = currency;
+    this.merkleTreeService = merkleTreeService;
     this.batchTransactionService = new BatchTransactionService({
       provider,
       onProgress: this.updateTransactionProgress
@@ -182427,14 +182431,19 @@ class BaseTornadoService extends BaseEventsService {
       });
     }
   }
-  validateEvents({ events }) {
+  async validateEvents({ events }) {
     if (events.length && this.getType().toLowerCase() === DEPOSIT) {
-      const lastEvent = events[events.length - 1];
-      if (lastEvent.leafIndex !== events.length - 1) {
-        const errMsg = `Deposit events invalid wants ${events.length - 1} leafIndex have ${lastEvent.leafIndex}`;
+      const depositEvents = events;
+      const lastEvent = depositEvents[depositEvents.length - 1];
+      if (lastEvent.leafIndex !== depositEvents.length - 1) {
+        const errMsg = `Deposit events invalid wants ${depositEvents.length - 1} leafIndex have ${lastEvent.leafIndex}`;
         throw new Error(errMsg);
       }
+      if (this.merkleTreeService) {
+        return await this.merkleTreeService.verifyTree(depositEvents);
+      }
     }
+    return void 0;
   }
   async getLatestEvents({ fromBlock }) {
     if (this.tovarishClient?.selectedRelayer) {
@@ -183142,6 +183151,134 @@ class DBTornadoService extends BaseTornadoService {
     });
   }
 }
+class DBEchoService extends BaseEchoService {
+  staticUrl;
+  idb;
+  zipDigest;
+  constructor(params) {
+    super(params);
+    this.staticUrl = params.staticUrl;
+    this.idb = params.idb;
+  }
+  async getEventsFromDB() {
+    return await loadDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName()
+    });
+  }
+  async getEventsFromCache() {
+    return await loadRemoteEvents({
+      staticUrl: this.staticUrl,
+      instanceName: this.getInstanceName(),
+      deployedBlock: this.deployedBlock,
+      zipDigest: this.zipDigest
+    });
+  }
+  async saveEvents({ events, lastBlock }) {
+    await saveDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName(),
+      events,
+      lastBlock
+    });
+  }
+}
+class DBEncryptedNotesService extends BaseEncryptedNotesService {
+  staticUrl;
+  idb;
+  zipDigest;
+  constructor(params) {
+    super(params);
+    this.staticUrl = params.staticUrl;
+    this.idb = params.idb;
+  }
+  async getEventsFromDB() {
+    return await loadDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName()
+    });
+  }
+  async getEventsFromCache() {
+    return await loadRemoteEvents({
+      staticUrl: this.staticUrl,
+      instanceName: this.getInstanceName(),
+      deployedBlock: this.deployedBlock,
+      zipDigest: this.zipDigest
+    });
+  }
+  async saveEvents({ events, lastBlock }) {
+    await saveDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName(),
+      events,
+      lastBlock
+    });
+  }
+}
+class DBGovernanceService extends BaseGovernanceService {
+  staticUrl;
+  idb;
+  zipDigest;
+  constructor(params) {
+    super(params);
+    this.staticUrl = params.staticUrl;
+    this.idb = params.idb;
+  }
+  async getEventsFromDB() {
+    return await loadDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName()
+    });
+  }
+  async getEventsFromCache() {
+    return await loadRemoteEvents({
+      staticUrl: this.staticUrl,
+      instanceName: this.getInstanceName(),
+      deployedBlock: this.deployedBlock,
+      zipDigest: this.zipDigest
+    });
+  }
+  async saveEvents({ events, lastBlock }) {
+    await saveDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName(),
+      events,
+      lastBlock
+    });
+  }
+}
+class DBRegistryService extends BaseRegistryService {
+  staticUrl;
+  idb;
+  zipDigest;
+  constructor(params) {
+    super(params);
+    this.staticUrl = params.staticUrl;
+    this.idb = params.idb;
+  }
+  async getEventsFromDB() {
+    return await loadDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName()
+    });
+  }
+  async getEventsFromCache() {
+    return await loadRemoteEvents({
+      staticUrl: this.staticUrl,
+      instanceName: this.getInstanceName(),
+      deployedBlock: this.deployedBlock,
+      zipDigest: this.zipDigest
+    });
+  }
+  async saveEvents({ events, lastBlock }) {
+    await saveDBEvents({
+      idb: this.idb,
+      instanceName: this.getInstanceName(),
+      events,
+      lastBlock
+    });
+  }
+}
 
 const dist_abi$8 = [
   {
@@ -189412,15 +189549,18 @@ class MerkleTreeService {
 Creating deposit tree for ${this.netId} ${this.amount} ${this.currency.toUpperCase()} would take a while
 `
     );
-    console.time("Created tree in");
+    const timeStart = Date.now();
     const tree = await this.createTree(events.map(({ commitment }) => commitment));
-    console.timeEnd("Created tree in");
-    console.log("");
     const isKnownRoot = await this.Tornado.isKnownRoot(toFixedHex(BigInt(tree.root)));
     if (!isKnownRoot) {
       const errMsg = `Deposit Event ${this.netId} ${this.amount} ${this.currency} is invalid`;
       throw new Error(errMsg);
     }
+    console.log(
+      `
+Created ${this.netId} ${this.amount} ${this.currency.toUpperCase()} tree in ${Date.now() - timeStart}ms
+`
+    );
     return tree;
   }
 }
@@ -190048,15 +190188,13 @@ class NodeTornadoService extends BaseTornadoService {
   cacheDirectory;
   userDirectory;
   nativeCurrency;
-  merkleTreeService;
   treeCache;
   constructor(serviceConstructor) {
     super(serviceConstructor);
-    const { cacheDirectory, userDirectory, nativeCurrency, merkleTreeService, treeCache } = serviceConstructor;
+    const { cacheDirectory, userDirectory, nativeCurrency, treeCache } = serviceConstructor;
     this.cacheDirectory = cacheDirectory;
     this.userDirectory = userDirectory;
     this.nativeCurrency = nativeCurrency;
-    this.merkleTreeService = merkleTreeService;
     this.treeCache = treeCache;
   }
   updateEventProgress({ type, fromBlock, toBlock, count }) {
@@ -190099,15 +190237,17 @@ class NodeTornadoService extends BaseTornadoService {
   async getEventsFromCache() {
     return await getEventsFromCache(this);
   }
-  async saveEvents({ events, lastBlock }) {
-    if (this.userDirectory && this.merkleTreeService) {
-      const tree = await this.merkleTreeService.verifyTree(events);
-      if (this.currency === this.nativeCurrency && this.treeCache) {
-        await this.treeCache.createTree(events, tree);
-        console.log(`${this.getInstanceName()}: Updated tree cache with root ${toFixedHex(BigInt(tree.root))}
+  async validateEvents({ events }) {
+    const tree = await super.validateEvents({ events });
+    if (tree && this.currency === this.nativeCurrency && this.treeCache) {
+      const merkleTree = tree;
+      await this.treeCache.createTree(events, merkleTree);
+      console.log(`${this.getInstanceName()}: Updated tree cache with root ${toFixedHex(BigInt(merkleTree.root))}
 `);
-      }
     }
+    return tree;
+  }
+  async saveEvents({ events, lastBlock }) {
     const eventTable = new (cli_table3_default())();
     eventTable.push(
       [{ colSpan: 2, content: `${this.getType()}s`, hAlign: "center" }],
@@ -191207,21 +191347,20 @@ Connected with Tovarish Relayer ${tovarishClient.selectedRelayer.url}
       };
       const depositsService = new NodeTornadoService({
         ...TornadoServiceConstructor,
-        type: "Deposit"
+        type: "Deposit",
+        merkleTreeService: new MerkleTreeService({
+          netId,
+          amount,
+          currency,
+          Tornado,
+          merkleWorkerPath
+        })
       });
       const withdrawalsService = new NodeTornadoService({
         ...TornadoServiceConstructor,
         type: "Withdrawal"
       });
-      const merkleTreeService = new MerkleTreeService({
-        netId,
-        amount,
-        currency,
-        Tornado,
-        merkleWorkerPath
-      });
-      const depositEvents = (await depositsService.updateEvents()).events;
-      const tree = await merkleTreeService.verifyTree(depositEvents);
+      const { events: depositEvents, validateResult: tree } = await depositsService.updateEvents();
       const withdrawalEvents = (await withdrawalsService.updateEvents()).events;
       const depositEvent = depositEvents.find(({ commitment }) => commitment === commitmentHex);
       const withdrawalEvent = withdrawalEvents.find(({ nullifierHash }) => nullifierHash === nullifierHex);
diff --git a/dist/services/nodeEvents.d.ts b/dist/services/nodeEvents.d.ts
index 75ff8f0..48e1f94 100644
--- a/dist/services/nodeEvents.d.ts
+++ b/dist/services/nodeEvents.d.ts
@@ -1,5 +1,5 @@
 import { BatchBlockOnProgress, BatchEventOnProgress, BaseTornadoService, BaseEncryptedNotesService, BaseGovernanceService, BaseRegistryService, BaseTornadoServiceConstructor, BaseEncryptedNotesServiceConstructor, BaseGovernanceServiceConstructor, BaseRegistryServiceConstructor, BaseEchoServiceConstructor, BaseEchoService, CachedRelayers } from '@tornado/core';
-import type { BaseEvents, DepositsEvents, WithdrawalsEvents, EncryptedNotesEvents, RegistersEvents, AllGovernanceEvents, EchoEvents, MerkleTreeService } from '@tornado/core';
+import type { BaseEvents, DepositsEvents, WithdrawalsEvents, EncryptedNotesEvents, RegistersEvents, AllGovernanceEvents, EchoEvents } from '@tornado/core';
 import { TreeCache } from './treeCache';
 export type NodeServiceConstructor = {
     cacheDirectory: string;
@@ -7,14 +7,12 @@ export type NodeServiceConstructor = {
 };
 export type NodeTornadoServiceConstructor = BaseTornadoServiceConstructor & NodeServiceConstructor & {
     nativeCurrency: string;
-    merkleTreeService?: MerkleTreeService;
     treeCache?: TreeCache;
 };
 export declare class NodeTornadoService extends BaseTornadoService {
     cacheDirectory: string;
     userDirectory: string;
     nativeCurrency: string;
-    merkleTreeService?: MerkleTreeService;
     treeCache?: TreeCache;
     constructor(serviceConstructor: NodeTornadoServiceConstructor);
     updateEventProgress({ type, fromBlock, toBlock, count }: Parameters<BatchEventOnProgress>[0]): void;
@@ -23,6 +21,9 @@ export declare class NodeTornadoService extends BaseTornadoService {
     updateGraphProgress({ type, fromBlock, toBlock, count }: Parameters<BatchEventOnProgress>[0]): void;
     getEventsFromDB(): Promise<BaseEvents<DepositsEvents | WithdrawalsEvents>>;
     getEventsFromCache(): Promise<import("@tornado/core").CachedEvents<DepositsEvents | WithdrawalsEvents>>;
+    validateEvents<S>({ events }: {
+        events: (DepositsEvents | WithdrawalsEvents)[];
+    }): Promise<S>;
     saveEvents({ events, lastBlock }: BaseEvents<DepositsEvents | WithdrawalsEvents>): Promise<void>;
 }
 export type NodeEchoServiceConstructor = BaseEchoServiceConstructor & NodeServiceConstructor;
diff --git a/package.json b/package.json
index 8b0f354..22bb15a 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
   "optionalDependencies": {},
   "devDependencies": {
     "@colors/colors": "^1.6.0",
-    "@tornado/core": "git+https://git.tornado.ws/tornadocontrib/tornado-core.git#ddf306a835a0907eed1a2a7aab4ed41e34fd9037",
+    "@tornado/core": "git+https://git.tornado.ws/tornadocontrib/tornado-core.git#dfb20aa61753c4f29ab144517ff48959e1b33c40",
     "@typechain/ethers-v6": "^0.5.1",
     "@types/figlet": "^1.7.0",
     "@typescript-eslint/eslint-plugin": "^8.9.0",
diff --git a/src/program.ts b/src/program.ts
index 6a7afc6..725bd11 100644
--- a/src/program.ts
+++ b/src/program.ts
@@ -60,7 +60,6 @@ import {
   NetIdType,
   getInstanceByAddress,
   getConfig,
-  Config,
   enabledChains,
   substring,
   NoteAccount,
@@ -73,6 +72,7 @@ import {
   ReverseRecords__factory,
   numberFormatter,
 } from '@tornado/core';
+import type { MerkleTree } from '@tornado/fixed-merkle-tree';
 import * as packageJson from '../package.json';
 import {
   parseUrl,
@@ -983,6 +983,13 @@ export function tornadoProgram() {
         const depositsService = new NodeTornadoService({
           ...TornadoServiceConstructor,
           type: 'Deposit',
+          merkleTreeService: new MerkleTreeService({
+            netId,
+            amount,
+            currency,
+            Tornado,
+            merkleWorkerPath,
+          }),
         });
 
         const withdrawalsService = new NodeTornadoService({
@@ -990,22 +997,11 @@ export function tornadoProgram() {
           type: 'Withdrawal',
         });
 
-        const merkleTreeService = new MerkleTreeService({
-          netId,
-          amount,
-          currency,
-          Tornado,
-          merkleWorkerPath,
-        });
-
-        const depositEvents = (await depositsService.updateEvents()).events as DepositsEvents[];
-
-        // Create tree using node workers which would spawn another dedicated thread to create trees
-        const tree = await merkleTreeService.verifyTree(depositEvents);
+        const { events: depositEvents, validateResult: tree } = await depositsService.updateEvents<MerkleTree>();
 
         const withdrawalEvents = (await withdrawalsService.updateEvents()).events as WithdrawalsEvents[];
 
-        const depositEvent = depositEvents.find(({ commitment }) => commitment === commitmentHex);
+        const depositEvent = (depositEvents as DepositsEvents[]).find(({ commitment }) => commitment === commitmentHex);
 
         const withdrawalEvent = withdrawalEvents.find(({ nullifierHash }) => nullifierHash === nullifierHex);
 
diff --git a/src/services/nodeEvents.ts b/src/services/nodeEvents.ts
index d326723..df62124 100644
--- a/src/services/nodeEvents.ts
+++ b/src/services/nodeEvents.ts
@@ -17,6 +17,7 @@ import {
   BaseEchoService,
   CachedRelayers,
   toFixedHex,
+  DEPOSIT,
 } from '@tornado/core';
 import type {
   BaseEvents,
@@ -26,10 +27,10 @@ import type {
   RegistersEvents,
   AllGovernanceEvents,
   EchoEvents,
-  MerkleTreeService,
   BaseEventsService,
   MinimalEvents,
 } from '@tornado/core';
+import type { MerkleTree } from '@tornado/fixed-merkle-tree';
 import { TreeCache } from './treeCache';
 import { saveUserFile, loadSavedEvents, loadCachedEvents, existsAsync } from './data';
 
@@ -114,7 +115,6 @@ export type NodeServiceConstructor = {
 export type NodeTornadoServiceConstructor = BaseTornadoServiceConstructor &
   NodeServiceConstructor & {
     nativeCurrency: string;
-    merkleTreeService?: MerkleTreeService;
     treeCache?: TreeCache;
   };
 
@@ -123,19 +123,17 @@ export class NodeTornadoService extends BaseTornadoService {
   userDirectory: string;
   nativeCurrency: string;
 
-  merkleTreeService?: MerkleTreeService;
   treeCache?: TreeCache;
 
   constructor(serviceConstructor: NodeTornadoServiceConstructor) {
     super(serviceConstructor);
 
-    const { cacheDirectory, userDirectory, nativeCurrency, merkleTreeService, treeCache } = serviceConstructor;
+    const { cacheDirectory, userDirectory, nativeCurrency, treeCache } = serviceConstructor;
 
     this.cacheDirectory = cacheDirectory;
     this.userDirectory = userDirectory;
     this.nativeCurrency = nativeCurrency;
 
-    this.merkleTreeService = merkleTreeService;
     this.treeCache = treeCache;
   }
 
@@ -185,17 +183,21 @@ export class NodeTornadoService extends BaseTornadoService {
     return await getEventsFromCache<DepositsEvents | WithdrawalsEvents>(this);
   }
 
-  async saveEvents({ events, lastBlock }: BaseEvents<DepositsEvents | WithdrawalsEvents>) {
-    if (this.userDirectory && this.merkleTreeService) {
-      const tree = await this.merkleTreeService.verifyTree(events as DepositsEvents[]);
+  async validateEvents<S>({ events }: { events: (DepositsEvents | WithdrawalsEvents)[] }): Promise<S> {
+    const tree = await super.validateEvents<S>({ events });
 
-      if (this.currency === this.nativeCurrency && this.treeCache) {
-        await this.treeCache.createTree(events as DepositsEvents[], tree);
+    if (tree && this.currency === this.nativeCurrency && this.treeCache) {
+      const merkleTree = tree as unknown as MerkleTree;
 
-        console.log(`${this.getInstanceName()}: Updated tree cache with root ${toFixedHex(BigInt(tree.root))}\n`);
-      }
+      await this.treeCache.createTree(events as DepositsEvents[], merkleTree);
+
+      console.log(`${this.getInstanceName()}: Updated tree cache with root ${toFixedHex(BigInt(merkleTree.root))}\n`);
     }
 
+    return tree;
+  }
+
+  async saveEvents({ events, lastBlock }: BaseEvents<DepositsEvents | WithdrawalsEvents>) {
     const eventTable = new Table();
 
     eventTable.push(
diff --git a/yarn.lock b/yarn.lock
index fb3032a..622b176 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -785,9 +785,9 @@
     "@openzeppelin/contracts-v3" "npm:@openzeppelin/contracts@3.2.0-rc.0"
     ethers "^6.13.4"
 
-"@tornado/core@git+https://git.tornado.ws/tornadocontrib/tornado-core.git#ddf306a835a0907eed1a2a7aab4ed41e34fd9037":
+"@tornado/core@git+https://git.tornado.ws/tornadocontrib/tornado-core.git#dfb20aa61753c4f29ab144517ff48959e1b33c40":
   version "1.0.19"
-  resolved "git+https://git.tornado.ws/tornadocontrib/tornado-core.git#ddf306a835a0907eed1a2a7aab4ed41e34fd9037"
+  resolved "git+https://git.tornado.ws/tornadocontrib/tornado-core.git#dfb20aa61753c4f29ab144517ff48959e1b33c40"
   dependencies:
     "@metamask/eth-sig-util" "^7.0.3"
     "@tornado/contracts" "git+https://git.tornado.ws/tornadocontrib/tornado-contracts.git#ece511f424dc811c3aec149a4bf0e3731c0598a4"