diff --git a/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionJson.java b/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionJson.java
index 384be83..cb3008e 100644
--- a/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionJson.java
+++ b/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionJson.java
@@ -240,6 +240,7 @@ public void setInput(HexData input) {
         this.input = input;
     }
 
+    @JsonIgnore
     public TransactionSignature getSignature() {
         if (signature != null) {
             return signature;
@@ -256,6 +257,7 @@ public TransactionSignature getSignature() {
         return created;
     }
 
+    @JsonIgnore
     public void setSignature(TransactionSignature signature) {
         this.signature = signature;
     }
diff --git a/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionLogJson.java b/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionLogJson.java
index bc12389..6e47ebf 100644
--- a/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionLogJson.java
+++ b/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionLogJson.java
@@ -17,6 +17,7 @@
 
 package io.emeraldpay.etherjar.rpc.json;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
@@ -163,6 +164,7 @@ public void setTopics(List<Hex32> topics) {
     }
 
     @Override
+    @JsonIgnore
     public TransactionId getHash() {
         return transactionHash;
     }
diff --git a/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionReceiptJson.java b/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionReceiptJson.java
index fff4a19..30b9943 100644
--- a/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionReceiptJson.java
+++ b/etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionReceiptJson.java
@@ -17,6 +17,7 @@
 
 package io.emeraldpay.etherjar.rpc.json;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
@@ -253,6 +254,7 @@ public void setRoot(Hex32 root) {
     }
 
     @Override
+    @JsonIgnore
     public TransactionId getHash() {
         return transactionHash;
     }
diff --git a/etherjar-rpc-json/src/test/groovy/io/emeraldpay/etherjar/rpc/json/TransactionLogJsonSpec.groovy b/etherjar-rpc-json/src/test/groovy/io/emeraldpay/etherjar/rpc/json/TransactionLogJsonSpec.groovy
index 07cea6b..de3207e 100644
--- a/etherjar-rpc-json/src/test/groovy/io/emeraldpay/etherjar/rpc/json/TransactionLogJsonSpec.groovy
+++ b/etherjar-rpc-json/src/test/groovy/io/emeraldpay/etherjar/rpc/json/TransactionLogJsonSpec.groovy
@@ -1,10 +1,18 @@
 package io.emeraldpay.etherjar.rpc.json
 
+import com.fasterxml.jackson.databind.ObjectMapper
+import io.emeraldpay.etherjar.domain.Address
+import io.emeraldpay.etherjar.domain.TransactionId
 import io.emeraldpay.etherjar.hex.Hex32
+import io.emeraldpay.etherjar.hex.HexData
+import io.emeraldpay.etherjar.rpc.JacksonRpcConverter
 import spock.lang.Specification
 
 class TransactionLogJsonSpec extends Specification {
 
+    JacksonRpcConverter jacksonRpcConverter = new JacksonRpcConverter()
+    ObjectMapper objectMapper = jacksonRpcConverter.getObjectMapper()
+
     def "Equals with topics values"() {
         setup:
         // val1 and val2 topics are both lists, but different implementations
@@ -75,4 +83,26 @@ class TransactionLogJsonSpec extends Specification {
         equals33
         !equals34
     }
+
+    def "Should not generate extra hash field"() {
+        setup:
+
+        def tx = new TransactionLogJson()
+        tx.transactionHash = TransactionId.from("0xc765d3a679254d60a519d83f33059f882875ad67d4114fb3de4c87a446fd0e52")
+        tx.setTopics([
+            Hex32.from("0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"),
+            Hex32.from("0x00000000000000000000000009b77fda4f5d9016d2cbe1d9fd12d465df8f96d5"),
+            Hex32.from("0x000000000000000000000000ef8801eaf234ff82801821ffe2d78d60a0237f97"),
+        ])
+        tx.data = HexData.from("0x0000000000000000000000000000000000000000000000000000000012113a25")
+        tx.address = Address.from("0xdAC17F958D2ee523a2206206994597C13D831ec7")
+
+        when:
+        def json = objectMapper.writeValueAsString(tx)
+
+        then:
+        json.contains("\"transactionHash\":")
+        !json.contains("\"hash\":")
+        json.findAll("0xc765d3a679254d60a519d83f33059f882875ad67d4114fb3de4c87a446fd0e52").size() == 1
+    }
 }