Autograph Authentication Report
2025 Dragon Ball Super Prismatic Clash - Special Rare - Stephanie Nadolny Auto · #74
Findings
Signature comparison
This card. The signature as cropped from the slab photo (front).
Below, the known examples Crown compared it with. Examples with stronger proof (signed in front of staff, or certified by an independent authenticator) carry the most weight.
Feature by feature
| Feature | This card | Known examples | Result |
|---|---|---|---|
| Overall form and proportions | Compact stacked block of abbreviated first name over abbreviated surname. A large oval loop sweeps up and right over the cloud, and a second large loop encircles the lower right. | R1/R5 and R4 show the same stacked abbreviated core with large sweeping ovals around it. R2 uses more vertical, narrow loops. R3 and R6–R8 are fuller, more legible versions. | Match |
| Slant and baseline | Strong right slant on the upright strokes, with the core rising slightly to the right. | R1/R5 and R4 show a similar right slant and a rising core. R2 is more upright and compressed. | Match |
| Letter construction | Tall 'S'-'t' entry with a crossing stroke, a cramped 'eph' cluster, then an angular capital 'N' and abbreviated 'ad' beneath. | R1/R5 show the same angular 'St' entry and stacked 'Nad'. R4's core is similar but smaller. | Match |
| Connecting strokes | The surname flows into a long rightward stroke that becomes the encircling loop. Connections look continuous. | R1/R5 and R4 show the surname terminating into large looping ovals. | Match |
| Starting and ending strokes | A left-side lead-in stroke sweeps from the lower left into the core. Terminal loops end with tapered tails as far as can be seen. | R1/R5 have a long lower-left lead-in with a dot-like start, then large terminal ovals. | Natural variation |
| Line quality and speed | Strokes appear confident and fluid, with no obvious tremor or drawn quality at this resolution. The ink is broken and grainy in places, consistent with a marker skipping on foil. | The references show fast, fluid marker strokes on matte or semi-gloss photo paper and on Funko plastic. | Natural variation |
| Pen pressure pattern | Ink density varies along the strokes, with heavier deposits in the core and lighter areas in the loops. It is not uniformly flat. | The references show normal marker density variation. | Natural variation |
| Spacing | Tight vertical stacking of the name core with wide open loops around it. | R1/R5 and R4 show the same tight core and open loops. | Match |
| Flourishes and inscription | Large ovals plus a 'Goku' inscription at the lower right, inside the loop. No clear heart is visible, though the busy holo background could hide one. | R4 has a 'GOKU' inscription at the lower right and a small heart. R3 has a heart and a 'KID GOKU' inscription. R7 has a 'DB GOKU' inscription. | Natural variation |
| Placement and size | Large and centered on the Nimbus cloud over the art. It extends into the text box, a natural signing position for a card. | Placement varies with the item, and the large size relative to the item is typical across all references. | Match |
Examiner notes
Ours is on a 2025 Dragon Ball Super Prismatic Clash card (BT28-074 SPR), so it was signed in 2025 or later and reflects her recent abbreviated convention style. R1/R5 (8x10 photos), R2 and R4 (custom framed piece with GOKU inscription) look like the same modern quick form: a stacked, angular 'Steph' over 'Nad' with large looping ovals. R3 and R6–R8 (Funko boxes, conventions) use a fuller, more legible 'Stephanie Nadolny' that she uses when signing more slowly or with more room. Some differences in ours (grainy ink, slightly compressed stacking) are expected from a marker on a glossy holo card.
How Crown authenticates autographs: the signature is compared with known examples gathered from Crown's own authenticated cards, independent authenticators and public listings, measured by software, examined by an AI forensic model, and signed off by Crown Grading staff. The decision above is Crown's.
