(n) to the extent that the contractor may invoke moral rights, the right for the contracting authority,  except where otherwise provided in this FWC, to publish the  Results  with or without mentioning  the  creator (s)’ name(s), and the right to decide when and whe ther the  Results  may be disclosed  and published.  The contractor warrants that the exclusive rights and the modes of exploitation may be exercised by  the contracting authority on all parts of the  Results , be it via a transfer of ownership of the rights, on  those parts which were specifically created by the contractor, or via a licence of the pre-existing rights,  on those parts consisting of pre-existing materials.  Where  Pre-existing materials are inserted in the  Results , the contracting authority may accept  reasonable restrictions impacting on the above list, provided that the said materials are easily  identifiable and separable from the rest, that they do not correspond to substantial elements of the  Results , and that, should the need arise, satisfactory replacement solutions exist, at no additional  costs to the contracting authority. In such case, the contractor will have to clearly inform the  contracting authority before making such choice and the contracting authority has the right to refuse  it.  When delivering the  Results , the contractor must warrant that, for any use that the contracting  authority may envisage within the limits set in this FWC, the newly created parts and the  Pre-existing  material  incorporated in the  Results  are free of claims from  creators  or from any third parties and all  the necessary  Pre-existing rights  have been obtained or licensed. To that effect, the contractor must establish a list of all  Pre-existing rights  to the  Results  of this FWC  or parts thereof, including identification of the rights’ owners. If there are no  Pre-existing rights  to the  Results , the contractor must provide a declaration to that effect. The contractor must provide this list  or declaration to the contracting authority together with the invoice for payment of the balance at the  latest. II.13.4 Identification of pre-existing rights II.13.5 Evidence of granting of pre-existing rights Upon request by the contracting authority, the contractor must, in addition to the list mentioned under  Article II.13.4, provide evidence that it has the ownership or the right to use all the listed  Pre-existing  rights , except for the rights owned or licensed by the contracting authority. The contracting authority  may request this evidence even after the end of this FWC.  This provision also applies to image rights and sound recordings.  This evidence may refer, for example, to rights to: parts of other documents, images, graphs, tables,  data, software, technical inventions, know-how, IT development tools, routines, subroutines or other  programs (‘background technology’), concepts, designs, installations or pieces of art, data, source or  background materials or any other parts of external origin. This evidence must include, as  appropriate: (a) the name and version number of a software product; (b) the full identification of the work and its author, developer,  creator , translator, data entry  person, graphic designer, publisher, editor, photographer, producer; (c) a copy of the licence to use the product or of the agreement granting the relevant rights to  the contractor or a reference to this licence; (d) a copy of the agreement or extract from the employment contract granting the relevant  rights to the contractor where parts of the  Results  were created by its  Personnel ; (e) the text of the disclaimer notice if any.  27 