Crown Grading Authentication has examined the autograph present on this 2025 SMZ Comics Metal Trading Card No. 10, attributed to artist Eddie Nuñez. The signature appears in light blue ink at the lower-center of the metal card surface, rendered in a fluid, abbreviated cursive style consistent with known examples of Nuñez's autograph. Ink examination confirmed this is a live ink autograph — physical analysis revealed darkened overlaps at stroke intersections and measurable variation in ink pressure and density across the signature, ruling out a printed or facsimile reproduction.