default boolean isReferencedByHash() {
    return getEncodedBytes().size() >= 32;
  }
Whether a reference to this node should be represented as a hash of the rlp, or the node rlp
itself should be inlined (the rlp stored directly in the parent node). If true, the node is
referenced by hash. If false, the node is referenced by its rlp-encoded value.

@return true if this node should be referenced by hash
ethereum/trie/src/main/java/org/hyperledger/besu/ethereum/trie/Node.java