A return of instances. 1 row records 1 instance, and a footer states a total. A PDF with its metadata removed, except for the creation date, which is the date on which the gallery accessioned it. Four identical files under four filenames, three of which resolve to names in the manifest and one of which does not. The complete contents of a file after normalisation of its line endings, except that the gallery does not state which normalisation was applied. The file differs from the file above it in the manifest by one bit. The gallery publishes neither the position of the bit nor the direction of the change. An index to a volume the gallery does not hold. Each entry names a page, a plate and a column, and no entry names a work. The same greyscale field at eleven sizes. Ten of the sizes are reductions of the eleventh, and one is not. A checksum manifest for the collection, generated before the collection acquired its current filenames. Deliberately unsealed. There is no correct reading and no digest to check against. A contact sheet of every image in the collection, except that each image has been replaced by its dimensions in pixels. A single sentence, set forty times in forty encodings. Thirty-nine of the settings normalise to the same string and one does not, and the gallery does not say which. Three readings that no file in the gallery contains, accessioned as gifts and credited to the readers that produced them. Two hundred and forty lines, of which the gallery wrote none. Every line is an error that a reader's own instrument produced while fetching an earlier work. A token effort. A plain-text file containing only line breaks, with the number of lines matching the number of works in the collection at accession. An image of a page, a text layer drawn in rendering mode 3, and a document information dictionary. Twelve leaves. Each filename is the first eight hex digits of that leaf's own SHA-256, so the directory sorts by hash and not by any order the gallery chose. A stylesheet containing declarations for selectors that occur nowhere in the gallery's HTML. A list of every file the gallery considered and did not accession. The list is incomplete, and the gallery does not say what it omits. A ruled and empty margin, at the proportions of a page the collection does not contain.