  For a specific action supporting z=2 Lifshitz geometries we identify the
Lifshitz UV completion by solving for the most general solution near the
Lifshitz boundary. We identify all the sources as leading components of bulk
fields which requires a vielbein formalism. This includes two linear
combinations of the bulk gauge field and timelike vielbein where one asymptotes
to the boundary timelike vielbein and the other to the boundary gauge field.
The geometry induced from the bulk onto the boundary is a novel extension of
Newton-Cartan geometry that we call torsional Newton-Cartan (TNC) geometry.
There is a constraint on the sources but its pairing with a Ward identity
allows one to reduce the variation of the on-shell action to unconstrained
sources. We compute all the vevs along with their Ward identities and derive
conditions for the boundary theory to admit conserved currents obtained by
contracting the boundary stress-energy tensor with a TNC analogue of a
conformal Killing vector. We also obtain the anisotropic Weyl anomaly that
takes the form of a Horava-Lifshitz action defined on a TNC geometry. The
Fefferman-Graham expansion contains a free function that does not appear in the
variation of the on-shell action. We show that this is related to an irrelevant
deformation that selects between two different UV completions.
