Acta Astronautica , 2019
If you’re looking for a helpful paper on this topic, here’s a well-cited and accessible one: “A Binary Interstellar Beacon” binary code interstellar
It sounds like you're referring to the concept of — most famously the Arecibo Message (1974) or proposals like Binary interstellar beacons from SETI research. Acta Astronautica , 2019 If you’re looking for
Michael Hippke (Sonneberg Observatory)
If you meant a different paper (e.g., one specifically about decoding binary from a real interstellar signal, or a fictional reference), let me know and I can refine the recommendation. or a fictional reference)