Six categories, one hundred points, four outcome bands. Every upload is judged against this sheet. There is no secret sauce.
Surfaces to the home page and Discovery axes. Eligible for “Editor's pick”.
Accepted into the archive. Searchable and collectable.
Accepted, flagged for rescan. Hidden from Discovery surfaces.
Returned with a reason code. Resubmission allowed.
Flatbed or copy-stand, 600+ dpi, calibrated sRGB, no visible compression.
Clean scan at 400–600 dpi, minor color cast acceptable.
Decent scan but visible banding, uneven lighting, or JPEG artifacts.
Phone photo, re-upload from another archive, or web-extracted JPEG.
3000+ px long edge, focus corner to corner, no upscaling.
2200–2999 px, sharp center, edges soft but acceptable.
1800–2199 px, visible softness.
Below 1800 px, or AI-upscaled with visible halos.
Pixel-perfect trim, orthogonal, printed edge visible on all sides.
Straight within 0.5°, margin ≤ 4 px.
Slight skew or uneven margin — acceptable if content intact.
Cropped into the image, rotated > 2°, or missing edges.
sRGB embedded, neutral white point, inks match reference sample.
Minor cast (< 5 ΔE on neutrals), still faithful.
Visible warm/cool shift, inks readable but off.
Saturation boosted, contrast crushed, whites blown.
Title, year, country, size, printer, designer, illustrator all filled accurately.
Required fields + 2 credits filled.
Only required fields filled.
Guessed or invented credits; wrong year or country.
Original physical poster owned by uploader; first public scan.
Loaned poster, scanned by uploader, with lender credit.
Independent rescan of a poster already in the archive, higher quality.
Reuploaded from another archive, auction listing, or streaming service.