Autograph Authentication Report
2021 Nintendopes Stickers Open Edition - Artist Mark Pingitore Auto · #24b
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 two-part signature: a stylized 'M' that reads like 'Nl', a gap, then a tall 'P' flowing into a looped 'gt' with a long horizontal terminal bar. Written vertically along the left border. | R1–R7 show the same two-part 'Nl … P-gt' structure with the long right-hand terminal bar. R1 is nearly identical in proportion. | Match |
| Slant and baseline | Strong rightward forward slant on the initial strokes and a fairly level baseline (relative to the signing direction). | R1, R3, R4 and R6 show the same forward-leaning initial strokes and level baseline. Small baseline drift in R5 and R7. | Match |
| Letter construction | 'M' is an upstroke, a sharp down-angle, then a separate short 'l'-like stroke. 'P' has a tall stem with a closed bowl run into small 'g'/'t' loops. | Same construction in R1, R2, R3, R4 and R6. The 'P' bowl and loop sequence matches R1 and R3 closely. | Match |
| Connecting strokes | Pen lift between the first-name initial and the surname. The surname is written as one continuous stroke. | Same lift pattern and continuous surname in R1–R7. | Match |
| Starting and ending strokes | Starts with a quick hooked entry. Ends with a long, tapering horizontal stroke extending right. | Long tapered terminal bar present in R1, R3, R4 and R6. Shorter in R2 and R5, which fits normal space and speed variation. | Natural variation |
| Line quality and speed | Fluid, confident marker lines with tapering on the terminal stroke. No visible tremor or hesitation at this resolution. | R1–R7 show similarly fast, fluid marker execution. | Match |
| Pen pressure pattern | Heavier ink at the turns and lighter tapering at the exits. Density looks non-uniform, as expected from a live marker. | Similar pressure variation in R1 and R3. Assessment is limited by image resolution. | Natural variation |
| Spacing | Moderate gap between the initial and surname groups. | Comparable gap in R1–R7. R4 and R6 are slightly tighter. | Natural variation |
| Flourishes and underlines | No underline. The trailing bar acts as the flourish. | Same in R1–R7. | Match |
| Placement and size | Blue marker, signed vertically in the left blue/white/red border area beside the figure, off the artwork's printed elements. | Reference crops do not show orientation. Placement on artist-signed stickers varies. Blue ink matches R1, R3 and R7. | Not assessable |
Examiner notes
Our card is a 2021 Nintendopes Open Edition sticker, so the signature is likely from about 2021 to 2023. References R1–R7 are all contemporary Magic Marker Art / Nintendopes artist-autograph issues from the same general period, so no meaningful career drift is expected. R8 (Slop Culture Kids) is also contemporary but shows a different form, discussed below.
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.
