  The crux of the black hole information paradox is related to the fact that
the complete information about the initial state of a quantum field in a
collapsing spacetime is not available to future asymptotic observers, belying
the expectations from a unitary quantum theory. We study the imprints of the
initial quantum state contained in a specific class of distortions of the black
hole radiation and identify the classes of in-states which can be
partially/fully reconstructed from the information contained within. Even for
the general in-state, we can uncover some specific information. These results
suggest that a \textit{classical} collapse scenario ignores this richness of
information in the resulting spectrum and a consistent quantum treatment of the
entire collapse process might allow us to retrieve much more information from
the spectrum of the final radiation.

General Relativity and Quantum Cosmology;High Energy Physics - Theory