Proof of ownership and value belongs with the item. On its page, under Documents, choose Add document….

  1. Pick a PDF or a photo of the paperwork.
  2. Say What it is — Receipt, Appraisal, Certificate, Warranty, Manual or Document.
  3. Optionally a Title (blank uses the file name), the Date on the document, and a Note.

Documents are encrypted like everything else, and their titles and notes are searchable.

Beside each document:

Catalog health counts items with No documents, and insurance reports can list documents on file by title.