Rodrigo Andrade e Silva · Perimeter Institute · 22 September 2026 · Suggested citation: Rodrigo Andrade e Silva, “An algebra of proper observables at null infinity: Dirac brackets, Memory and Goldstone probes” Zenodo, in International Loop Quantum Gravity Seminar (ILQGS), 2026, webinar, doi:10.5281/zenodo.22880150. This work is openly licensed via CC-BY-4.0.