  We suggest that bits of information inhabit, universally and holographically,
the entire black hole interior, a bit per a light sheet unit interval of order
Planck area difference. The number of distinguishable (tagged by a binary code)
configurations, counted within the context of a discrete holographic shell
model, is given by the Catalan series. The area entropy formula is recovered,
including the universal logarithmic correction, and the equipartition of mass
per degree of freedom is proven. The black hole information storage resembles a
stack data structure.
