Autograph Authentication Report
2024 Mutagen Canister Kids Stickers Open Edition - Artist Mark Pingitore Auto · #11b
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 | Rotated, it reads as a three-part abbreviated signature: an angular zigzag initial, a looped tall-stemmed P-group, and a long terminal stroke. Total length is roughly 40% of card height. | R1–R8 show the same three-part abbreviation: a sharp zigzag 'M' with a small trailing loop, a gap, a tall 'P' with descending 'g'-like loop, and an extended 't' crossbar. | Match |
| Slant and baseline | Signed bottom-to-top along the card's right edge. Relative to its own writing line the baseline is fairly straight, with a slight rise toward the terminal. | Horizontal, with a mild rightward slant and a gently rising baseline. | Natural variation |
| Letter construction | Pointed zigzag initial with sharp apices. The P-group shows a tall upstroke with a closed loop. Detail is limited by the crop's resolution. | Initial 'M' is built as a sharp N/M zigzag with a long first downstroke. The 'P' is a tall stem with a bowl, followed by a looped lower element. | Match |
| Connecting strokes | Pen lift between the initial and surname group; the surname group is largely connected. | Consistent pen lift between first-name and surname groups; surname group connected. | Match |
| Starting and ending strokes | Ends in a long straight stroke toward the top of the card, matching the extended crossbar or terminal. Starts are not blunt as far as visible. | Long, fast terminal crossbar extending well beyond the letter bodies (most pronounced in R1, R5, R6, R7). | Match |
| Line quality and speed | Strokes appear fluid with tapered ends and no obvious tremor, at the available resolution. | Fast, confident marker strokes with tapered terminals. | Match |
| Pen pressure pattern | Blue ink with some density variation along the strokes. It does not look uniformly flat. | Variable density typical of a felt or paint marker; the R references are blue or black. | Natural variation |
| Spacing | Clear gap between the initial and surname group, proportionate to the references. | Clear gap between the 'M' group and the 'P' group. | Match |
| Flourishes and underlines | No underline; the extended terminal stroke is the only flourish. | No underlines; the extended 't' bar is the signature flourish. | Match |
| Placement and size | Placed vertically on the right margin, overlapping the artwork and the logo edge. | Placed across the artwork, typically overlapping printed imagery. All references are horizontal. | Natural variation |
Examiner notes
Our card is a 2024 Mutagen Canister Kids sticker from Pingitore's self-published Magic Marker Art parody line. All eight references come from the same contemporary period (2023–2024 Nintendopes Open Edition and Horrorible Kids Series 9) and the same artist-signed product family. Era drift should be minimal. Ours is signed vertically along the right edge rather than horizontally, so it has to be read rotated about 90°.
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.
