diff --git a/config/config.json b/config/config.json
index b516c06fb5..2902afdc26 100644
--- a/config/config.json
+++ b/config/config.json
@@ -162,7 +162,7 @@
                 }
             }
         },
-        "maximumAssertionSizeInKb": 10000,
+        "maximumAssertionSizeInKb": 500000,
         "commandExecutorVerboseLoggingEnabled": false,
         "appDataPath": "data",
         "logLevel": "info",
@@ -330,7 +330,7 @@
                 }
             }
         },
-        "maximumAssertionSizeInKb": 10000,
+        "maximumAssertionSizeInKb": 500000,
         "commandExecutorVerboseLoggingEnabled": false,
         "appDataPath": "data",
         "logLevel": "trace",
@@ -498,7 +498,7 @@
                 }
             }
         },
-        "maximumAssertionSizeInKb": 10000,
+        "maximumAssertionSizeInKb": 500000,
         "commandExecutorVerboseLoggingEnabled": false,
         "appDataPath": "data",
         "logLevel": "trace",
@@ -665,7 +665,7 @@
                 }
             }
         },
-        "maximumAssertionSizeInKb": 10000,
+        "maximumAssertionSizeInKb": 500000,
         "commandExecutorVerboseLoggingEnabled": false,
         "appDataPath": "data",
         "logLevel": "trace",
@@ -855,7 +855,7 @@
                 }
             }
         },
-        "maximumAssertionSizeInKb": 10000,
+        "maximumAssertionSizeInKb": 500000,
         "commandExecutorVerboseLoggingEnabled": false,
         "appDataPath": "data",
         "logLevel": "trace",
diff --git a/package.json b/package.json
index 53b0c31e44..6ef9cfaab4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "origintrail_node",
-    "version": "8.1.2+beta.0",
+    "version": "8.1.3+beta.0",
     "description": "OTNode V8",
     "main": "index.js",
     "type": "module",
@@ -73,7 +73,7 @@
         "@polkadot/util": "^10.1.7",
         "@polkadot/util-crypto": "^10.1.7",
         "app-root-path": "^3.1.0",
-        "assertion-tools": "^2.0.2",
+        "assertion-tools": "^2.2.0",
         "async": "^3.2.4",
         "async-mutex": "^0.3.2",
         "awilix": "^7.0.3",
diff --git a/src/constants/constants.js b/src/constants/constants.js
index 8a85c78795..2b0bfe7693 100644
--- a/src/constants/constants.js
+++ b/src/constants/constants.js
@@ -73,7 +73,7 @@ export const TRANSACTION_QUEUE_CONCURRENCY = 1;
 
 export const TRIPLE_STORE_CONNECT_RETRY_FREQUENCY = 10;
 
-export const MAX_FILE_SIZE = 10000000;
+export const MAX_FILE_SIZE = 524288000;
 
 export const GET_STATES = { LATEST: 'LATEST', FINALIZED: 'LATEST_FINALIZED' };
 
diff --git a/src/controllers/http-api/v0/local-store-http-api-controller-v0.js b/src/controllers/http-api/v0/local-store-http-api-controller-v0.js
index a7a82d0064..51d20f6109 100644
--- a/src/controllers/http-api/v0/local-store-http-api-controller-v0.js
+++ b/src/controllers/http-api/v0/local-store-http-api-controller-v0.js
@@ -7,6 +7,7 @@ class LocalStoreController extends BaseController {
         this.commandExecutor = ctx.commandExecutor;
         this.operationIdService = ctx.operationIdService;
         this.dataService = ctx.dataService;
+        this.fileService = ctx.fileService;
     }
 
     async handleRequest(req, res) {
@@ -23,8 +24,13 @@ class LocalStoreController extends BaseController {
             null,
             OPERATION_ID_STATUS.LOCAL_STORE.LOCAL_STORE_INIT_END,
         );
-
-        const assertions = req.body;
+        let assertions;
+        const { filePath } = req.body;
+        if (filePath) {
+            assertions = JSON.parse(await this.fileService.readFile(filePath));
+        } else {
+            assertions = req.body;
+        }
 
         const cachedAssertions = {
             public: {},
diff --git a/src/controllers/http-api/v0/request-schema/local-store-schema-v0.js b/src/controllers/http-api/v0/request-schema/local-store-schema-v0.js
index fc090858a4..39cded78f4 100644
--- a/src/controllers/http-api/v0/request-schema/local-store-schema-v0.js
+++ b/src/controllers/http-api/v0/request-schema/local-store-schema-v0.js
@@ -1,49 +1,82 @@
 import { LOCAL_STORE_TYPES } from '../../../../constants/constants.js';
 
 export default (argumentsObject) => ({
-    type: 'array',
+    type: ['object', 'array'],
     items: {
-        type: 'object',
-        required: ['assertionId', 'assertion'],
-        properties: {
-            assertionId: {
-                type: 'string',
-                minLength: 66,
-                maxLength: 66,
-            },
-            assertion: {
-                type: 'array',
-                items: {
-                    type: 'string',
+        oneOf: [
+            {
+                type: 'object',
+                required: ['assertionId', 'assertion'],
+                properties: {
+                    assertionId: {
+                        type: 'string',
+                        minLength: 66,
+                        maxLength: 66,
+                    },
+                    assertion: {
+                        type: 'array',
+                        items: {
+                            type: 'string',
+                        },
+                        minItems: 1,
+                    },
+                    blockchain: {
+                        enum: argumentsObject.blockchainImplementationNames,
+                    },
+                    contract: {
+                        type: 'string',
+                        minLength: 42,
+                        maxLength: 42,
+                    },
+                    tokenId: {
+                        type: 'number',
+                        minimum: 0,
+                    },
+                    storeType: {
+                        enum: [
+                            LOCAL_STORE_TYPES.TRIPLE,
+                            LOCAL_STORE_TYPES.TRIPLE_PARANET,
+                            LOCAL_STORE_TYPES.PENDING,
+                        ],
+                    },
+                    paranetUAL: {
+                        type: 'string',
+                    },
                 },
                 minItems: 1,
+                maxItems: 2,
             },
-            blockchain: {
-                enum: argumentsObject.blockchainImplementationNames,
-            },
-            contract: {
-                type: 'string',
-                minLength: 42,
-                maxLength: 42,
-            },
-            tokenId: {
-                type: 'number',
-                minimum: 0,
-            },
-            storeType: {
-                type: {
-                    enum: [
-                        LOCAL_STORE_TYPES.TRIPLE,
-                        LOCAL_STORE_TYPES.TRIPLE_PARANET,
-                        LOCAL_STORE_TYPES.PENDING,
-                    ],
+            {
+                type: 'object',
+                required: ['filePath'],
+                properties: {
+                    filePath: {
+                        type: 'string',
+                    },
+                    paranetUAL: {
+                        type: 'string',
+                    },
+                    blockchain: {
+                        enum: argumentsObject.blockchainImplementationNames,
+                    },
+                    contract: {
+                        type: 'string',
+                        minLength: 42,
+                        maxLength: 42,
+                    },
+                    tokenId: {
+                        type: 'number',
+                        minimum: 0,
+                    },
+                    storeType: {
+                        enum: [
+                            LOCAL_STORE_TYPES.TRIPLE,
+                            LOCAL_STORE_TYPES.TRIPLE_PARANET,
+                            LOCAL_STORE_TYPES.PENDING,
+                        ],
+                    },
                 },
             },
-            paranetUAL: {
-                type: 'string',
-            },
-        },
+        ],
     },
-    minItems: 1,
-    maxItems: 2,
 });