diff --git a/evm/src/main/java/org/hyperledger/besu/evm/frame/MessageFrame.java b/evm/src/main/java/org/hyperledger/besu/evm/frame/MessageFrame.java
index 729b9428752..19ef4621fbc 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/frame/MessageFrame.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/frame/MessageFrame.java
@@ -1297,10 +1297,16 @@ public Optional<StorageEntry> getMaybeUpdatedStorage() {
     return maybeUpdatedStorage;
   }
 
+  /**
+   * Accessor for versionedHashes, if present.
+   *
+   * @return optional list of hashes
+   */
   public Optional<List<Hash>> getVersionedHashes() {
     return versionedHashes;
   }
 
+  /** Reset. */
   public void reset() {
     maybeUpdatedMemory = Optional.empty();
     maybeUpdatedStorage = Optional.empty();
@@ -1335,7 +1341,12 @@ public static class Builder {
     private Multimap<Address, Bytes32> accessListWarmStorage = HashMultimap.create();
 
     private Optional<List<Hash>> versionedHashes;
-
+    /**
+     * Sets Type.
+     *
+     * @param type the type
+     * @return the builder
+     */
     public Builder type(final Type type) {
       this.type = type;
       return this;
@@ -1594,6 +1605,12 @@ public Builder accessListWarmStorage(final Multimap<Address, Bytes32> accessList
       return this;
     }
 
+    /**
+     * Sets versioned hashes list.
+     *
+     * @param versionedHashes the Optional list of versioned hashes
+     * @return the builder
+     */
     public Builder versionedHashes(final Optional<List<Hash>> versionedHashes) {
       this.versionedHashes = versionedHashes;
       return this;
diff --git a/evm/src/main/java/org/hyperledger/besu/evm/operation/DataHashOperation.java b/evm/src/main/java/org/hyperledger/besu/evm/operation/DataHashOperation.java
index 487312808e3..eda3f5dfd4e 100644
--- a/evm/src/main/java/org/hyperledger/besu/evm/operation/DataHashOperation.java
+++ b/evm/src/main/java/org/hyperledger/besu/evm/operation/DataHashOperation.java
@@ -24,10 +24,23 @@
 
 import org.apache.tuweni.bytes.Bytes;
 
+/**
+ * The DataHash operation. https://eips.ethereum.org/EIPS/eip-4844
+ *
+ * <p>Reads index from the top of the stack as big-endian uint256, and replaces it on the stack with
+ * tx.message.blob_versioned_hashes[index] if index &lt; len(tx.message.blob_versioned_hashes), and
+ * otherwise with a zeroed bytes32 value.
+ */
 public class DataHashOperation extends AbstractOperation {
 
+  /** DATAHASH opcode number */
   public static final int OPCODE = 0x49;
 
+  /**
+   * Instantiates a new DataHash operation.
+   *
+   * @param gasCalculator the gas calculator
+   */
   public DataHashOperation(final GasCalculator gasCalculator) {
     super(OPCODE, "DATAHASH", 1, 1, gasCalculator);
   }