Since the investigation proper of a true Art work parallels that of a real crime scene analysis [if you've any idea what you're doing - that is] it seems fitting to borrow some terminology.
I, for instance, like the dissonance of all clips below played at once. Try it.
[POLYPTYCH] Reconstructive evidence - reconstructive evidence allows investigators to gain an understanding of the actions that took place at the scene; a broken window, a blood red spatter pattern, thought paths and other imprints.
[CONJECTURES] Transient evidence - Evidence which by its very nature or the conditions at the scene will lose its evidentiary value if not preserved and protected (e.g., tears in the rain)
[POLAROIDS] Latent print - A fingerprint, palm print or footprint that is not readily visible under normal lighting.
[CUBES] Trace evidence - Physical evidence that results from the transfer of small quantities of materials (e.g., hair, textile fibers, paint chips, glass fragments, plastic residue particles).
[SUBPLOTS] Impression evidence - Objects or materials that have retained the characteristics of other objects that have been physically pressed against them.