[en] Motivated by the ambiguous experimental data for the superconducting phase in silane (SiH₄), which may originate from platinum hydride (PtH), we provide a theoretical study of the superconducting state in the latter alloy. The quantitative estimates of the thermodynamics of PtH at 100 GPa are given for a wide range of Coulomb pseudopotential values (${\mathrm{\mu <!--\; ??\; -->}}^{\ast <!--\; ???\; -->}$) within the Eliashberg formalism. The obtained critical temperature value ($T_{\mathrm{C}}\in <!--\; ???\; -->⟨<!--\; ???\; -->12.94,20.01⟩<!--\; ???\; -->$ for ${\mathrm{\mu <!--\; ??\; -->}}^{\ast <!--\; ???\; -->}\in <!--\; ???\; -->⟨<!--\; ???\; -->0.05,0.15⟩<!--\; ???\; -->$) agrees well with the experimental T_C for SiH₄, which may be ascribed to PtH. Moreover, the calculated characteristic thermodynamic ratios exceed the predictions of the Bardeen–Cooper–Schrieffer theory, implying the occurrence of strong-coupling and retardation effects in PtH. We note that our results may be of high relevance for future theoretical and experimental studies on hydrides. (paper)