  In integrable models of quantum field theory, local fields are normally
constructed by means of the bootstrap-formfactor program. However, the
convergence of their $n$-point functions is unclear in this setting. An
alternative approach uses fully convergent expressions for fields with weaker
localization properties in spacelike wedges, and deduces existence of
observables in bounded regions from there, but yields little information about
their explicit form. We propose a new, hybrid construction: We aim to describe
pointlike local quantum fields; but rather than exhibiting their $n$-point
functions and verifying the Wightman axioms, we establish them as closed
operators affiliated with a net of local von Neumann algebras that is known
from the wedge-local approach. This is shown to work at least in the Ising
model.
