Top: image of BulletArc-z11. Shown are different filters and an red-green-blue (RGB) image (B = F090W+F115W+F150W, G = F200W+F277W+F356W, and R = F356W+F410M+F444W). The white ticks mark the central position of the source (given by R.A., decl. in Table 2). The galaxy consists of two unresolved (1 and 3) and one barely resolved clump (2) and an underlying smooth component (labeled G). The sizes of cutouts are ﹩1\mathop{.}\limits^{^{\prime\prime} }6\times 1\mathop{.}\limits^{^{\prime\prime} }6﹩. The point source near the center in the F115W filter is the contaminant GC in the Bullet Cluster. Bottom: NIRSpec prism spectrum of BulletArc-z11. In the top panel, we show the 2D spectrum, while the bottom panel shows the 1D optimal extraction, as well as a cutout showing placement within the MSA shutters. The wavelengths of commonly observed emission lines are marked; however, none are detected with S/N > 3. The model spectrum (red line) includes a fully neutral IGM, a neutral hydrogen damping wing column, and a foreground contaminant source modeled as a GC at the Bullet cluster redshift (blue dashed line).