2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202220It is shown that the recently found non-uniqueness of the third post-Newtonian binary point-mass ADM-Hamiltonian is related to the non-uniqueness at the third post-Newtonian approximation of the applied ADM-coordinate conditions.LaTeX, 2 pages, submitted to Phys. Rev. DGeneral Relativity and Quantum CosmologyNon-uniqueness of the third post-Newtonian binary point-mass dynamicstext