diff --git a/src/commands/protocols/common/validate-assertion-metadata-command.js b/src/commands/protocols/common/validate-assertion-metadata-command.js
index f9d19976a..9031f860b 100644
--- a/src/commands/protocols/common/validate-assertion-metadata-command.js
+++ b/src/commands/protocols/common/validate-assertion-metadata-command.js
@@ -4,6 +4,7 @@ class ValidateAssertionMetadataCommand extends Command {
     constructor(ctx) {
         super(ctx);
         this.operationIdService = ctx.operationIdService;
+        this.blockchainModuleManager = ctx.blockchainModuleManager;
     }
 
     async execute(command) {
diff --git a/src/modules/blockchain/blockchain-module-manager.js b/src/modules/blockchain/blockchain-module-manager.js
index 2a87e9dbb..76c3c2732 100644
--- a/src/modules/blockchain/blockchain-module-manager.js
+++ b/src/modules/blockchain/blockchain-module-manager.js
@@ -181,12 +181,6 @@ class BlockchainModuleManager extends BaseModuleManager {
         ]);
     }
 
-    async getKnowledgeCollectionTriplesNumber(blockchain, knowledgeCollectionId) {
-        return this.callImplementationFunction(blockchain, 'getKnowledgeCollectionTriplesNumber', [
-            knowledgeCollectionId,
-        ]);
-    }
-
     async getKnowledgeCollectionChunksAmount(blockchain, knowledgeCollectionId) {
         return this.callImplementationFunction(blockchain, 'getKnowledgeCollectionChunksAmount', [
             knowledgeCollectionId,
diff --git a/src/modules/blockchain/implementation/web3-service.js b/src/modules/blockchain/implementation/web3-service.js
index c0f45d006..902d8f933 100644
--- a/src/modules/blockchain/implementation/web3-service.js
+++ b/src/modules/blockchain/implementation/web3-service.js
@@ -951,19 +951,6 @@ class Web3Service {
         return Number(knowledgeCollectionSize);
     }
 
-    async getKnowledgeCollectionTriplesNumber(assetStorageContractAddress, knowledgeCollectionId) {
-        const assetStorageContractInstance =
-            this.assetStorageContracts[assetStorageContractAddress.toString().toLowerCase()];
-        if (!assetStorageContractInstance)
-            throw new Error('Unknown asset storage contract address');
-        const knowledgeCollectionTriplesNumber = await this.callContractFunction(
-            assetStorageContractInstance,
-            'getTriplesAmount',
-            [knowledgeCollectionId],
-        );
-        return Number(knowledgeCollectionTriplesNumber);
-    }
-
     async getKnowledgeCollectionChunksAmount(assetStorageContractAddress, knowledgeCollectionId) {
         const assetStorageContractInstance =
             this.assetStorageContracts[assetStorageContractAddress.toString().toLowerCase()];