BITG: A Proposed Binary Interstellar Beacon for Contact with Intelligent Civilizations (arXiv preprint)

To the point

Jonathan Jiang of NASA's Jet Propulsion Laboratory and colleagues have proposed BITG, a binary interstellar beacon that encodes a universal message starting with mathematics and physics, then Earth's biochemistry, the Solar System's position relative to known globular clusters, digitized depictions of the Solar System and Earth's surface, and finally digitized images of humans with an invitation to respond, and it could be transmitted toward promising regions of the Milky Way using the Five-hundred-meter Aperture Spherical radio Telescope in China and the SETI Institute’s Allen Telescope Array in California, though how recipients would interpret the message, whether life exists elsewhere, and what risks broadcasting Earth's location might entail remain uncertain and the effort is speculative and not peer-reviewed.