  We construct a holographic map that reconstructs massless fields (scalars,
Maxwell field \& Fierz-Pauli field) in half-Minkowski spacetime in $d+1$
dimensions terms of smeared primary operators in a large $N$ factorizable CFT
in $\mathbb{R}^{d-1,1}$ spacetime dimensions. This map is based on a Weyl
(rescaling) transformation from the Poincar\'e wedge of AdS to the Minkowski
half-space; and on the HKLL smearing function, which reconstructs local bulk
operators in the Poincar\'e AdS in terms of smeared operators on the conformal
boundary of the Poincar\'e wedge. The massless scalar field is reconstructed up
to the level of two-point functions, while the Maxwell field and massless
spin-2 fields are reconstructed at the level of the one-point function. We also
discuss potential ways the map can be generalized to higher dimensions, and to
the full Minkowski space.
