Line identification for sources in the HPC1001 pointing. For each source we show the PDF(z) from COSMOS2020 Classic LePhare as a grey shaded area, and mark its 16th, 50th, and 84th percentile with vertical grey lines. The red shaded areas show the spectral coverage of the observations. Dot-dashed magenta and black curves show the observed frequencies of CO and CI lines as a function of redshift. The blue line marks the observed frequency of the detected line. We highlight the best redshift solution, z_spec, with a vertical golden line. The identified emission lines are highlighted in green.