  Several compact $sssc\bar c$ pentaquark resonances are predicted in a
potential quark model. The Hamiltonian is the best available one, which
reproduces the masses of the low-lying charmed and strange hadrons well. Full
five-body calculations are carried out by the use of the Gaussian expansion
method, and the relevant baryon-meson thresholds are taken into account
explicitly. Employing the real scaling method, we predict four sharp
resonances, $J^P=1/2^-$ ($E=5180$ MeV, $\Gamma=20$ MeV), $5/2^-$ (5645 MeV, 30
MeV), $5/2^-$ (5670 MeV, 50 MeV), and $1/2^+$ (5360 MeV, 80 MeV). These are the
candidates of compact pentaquark resonance states from the current best quark
model, which should be confirmed either by experiments or lattice QCD
calculations.
