{"schema": "too.foo.history.image-prompt.v1", "slug": "1045-movable-type-printing-is-invented-by-bi-sheng-in-china", "release": "4b157fe58dc3a255", "image_key": "1045-movable-type-printing-is-invented-by-bi-sheng-in-china", "image_sha256": "1074fee919c79f9aa4035ced953ac1e60ee54a0b24dbcfa804559e90d7f0b8b2", "job": "20260827-062656-tier3", "model": "Ideogram 4 (fp8)", "preset": "V4_TURBO_12", "steps": 12, "seed": 20260823, "width": 1216, "height": 832, "caption_mode": "json", "caption": {"high_level_description": "At one waist-high bench, Bi Sheng lowers a fired-clay relief piece into the right iron frame while one assistant presses a round rubbing pad over paper covering the inked form on the left board; both page-sized boards operate side by side mid-cycle. A close-cropped Northern Song workroom with a packed-earth floor, stout rough-plank bench, lime-plastered wall, and open timber doorway; only the working surface and two artisans resolve clearly. All four bench legs contact the packed-earth floor; both artisans’ feet remain planted on that floor. Both iron boards lie flat on the bench with their long edges parallel and a hand-width gap between them. Each iron frame sits flush on its board; the right resin-and-ash bed fills the area inside its frame. The five installed clay pieces contact the adhesive bed; Bi Sheng lowers the sixth piece vertically into the open gap. Bi Sheng’s thumb and forefinger close on opposite side edges of the descending piece, with its carved face directed downward. The paper lies flat across the entire left form, and its curled free corner remains supported by the board edge. The compressed rubbing pad contacts the paper; the assistant’s overlapping hands fully encircle the pad handle. The left form is cooled and stable during printing; the right form awaits heating and levelling after composition. Each iron board is approximately 40 cm long, about the span from an adult worker’s elbow to fingertips. It is 1041–1048: Northern Song commoner artisans in cross-collared hemp work robes, loose trousers, cloth caps, and flat cloth shoes, with uneven hems and rolled sleeves.; Fired sticky-clay pieces, matte iron boards and frames, resinous adhesive mixed with paper ash, paper, fibre rubbing pad, ink, rough timber, and packed earth.; Reusable fired-clay relief pieces composed in iron frames on two alternating boards; one cooled form prints while the second is assembled for later heating and levelling.", "style_description": {"aesthetics": "Absorbed practical experimentation.. Documentary photographic realism: subtle film grain, believable wear on every material, candid imperfect framing.", "lighting": "One high daylight source enters through the doorway at frame left, giving matte iron narrow highlights and casting every hand, tool, board, figure, and bench shadow rightward.", "photo": "45mm, f/4, 3 m, Candid diagonal medium-wide view from slightly above bench height; the paired boards dominate the lower frame, Bi Sheng sits off-centre, and the near bench edge blurs.", "medium": "photograph", "color_palette": ["#1E1913", "#4A3B28", "#8A7350", "#C9B892", "#2B2B2A"]}, "compositional_deconstruction": {"background": "A close-cropped Northern Song workroom with a packed-earth floor, stout rough-plank bench, lime-plastered wall, and open timber doorway; only the working surface and two artisans resolve clearly. One high daylight source enters through the doorway at frame left, giving matte iron narrow highlights and casting every hand, tool, board, figure, and bench shadow rightward.", "elements": [{"type": "obj", "bbox": [90, 480, 900, 850], "desc": "One commoner artisan stands right of centre, head bowed and face three-quarter away; thumb and forefinger grip one piece while his cuff hides the wrist."}, {"type": "obj", "bbox": [130, 40, 880, 420], "desc": "One artisan leans over the left board, face turned down; both closed hands overlap around a round pad and sleeves bunch against the bench edge."}, {"type": "obj", "bbox": [390, 20, 900, 980], "desc": "A waist-high four-legged timber bench supports both boards; its near edge is polished by forearms, with one split pegged beside the right leg."}, {"type": "obj", "bbox": [460, 70, 760, 460], "desc": "The left matte iron board, approximately 40 by 28 cm, supports a cooled inked form within its fitted iron frame."}, {"type": "obj", "bbox": [430, 90, 720, 450], "desc": "One flexible paper sheet lies flush over the left form and curls slightly at its free corner; the round fibre pad compresses against its centre."}, {"type": "obj", "bbox": [460, 530, 770, 920], "desc": "The right matte iron board, approximately 40 by 28 cm, contains a thin resin-and-ash bed within a fitted iron frame."}, {"type": "obj", "bbox": [370, 650, 690, 890], "desc": "One face-down piece descends toward an open gap; exactly five irregular fired-clay pieces resolve nearby while the completed far portion falls softly out of focus."}, {"type": "obj", "bbox": [780, 0, 1000, 1000], "desc": "Packed earth supports both artisans and four bench legs; a pale worn patch lies beneath the printer’s shifting front foot."}]}}, "rendered_input": "{\"high_level_description\": \"At one waist-high bench, Bi Sheng lowers a fired-clay relief piece into the right iron frame while one assistant presses a round rubbing pad over paper covering the inked form on the left board; both page-sized boards operate side by side mid-cycle. A close-cropped Northern Song workroom with a packed-earth floor, stout rough-plank bench, lime-plastered wall, and open timber doorway; only the working surface and two artisans resolve clearly. All four bench legs contact the packed-earth floor; both artisans’ feet remain planted on that floor. Both iron boards lie flat on the bench with their long edges parallel and a hand-width gap between them. Each iron frame sits flush on its board; the right resin-and-ash bed fills the area inside its frame. The five installed clay pieces contact the adhesive bed; Bi Sheng lowers the sixth piece vertically into the open gap. Bi Sheng’s thumb and forefinger close on opposite side edges of the descending piece, with its carved face directed downward. The paper lies flat across the entire left form, and its curled free corner remains supported by the board edge. The compressed rubbing pad contacts the paper; the assistant’s overlapping hands fully encircle the pad handle. The left form is cooled and stable during printing; the right form awaits heating and levelling after composition. Each iron board is approximately 40 cm long, about the span from an adult worker’s elbow to fingertips. It is 1041–1048: Northern Song commoner artisans in cross-collared hemp work robes, loose trousers, cloth caps, and flat cloth shoes, with uneven hems and rolled sleeves.; Fired sticky-clay pieces, matte iron boards and frames, resinous adhesive mixed with paper ash, paper, fibre rubbing pad, ink, rough timber, and packed earth.; Reusable fired-clay relief pieces composed in iron frames on two alternating boards; one cooled form prints while the second is assembled for later heating and levelling.\", \"style_description\": {\"aesthetics\": \"Absorbed practical experimentation.. Documentary photographic realism: subtle film grain, believable wear on every material, candid imperfect framing.\", \"lighting\": \"One high daylight source enters through the doorway at frame left, giving matte iron narrow highlights and casting every hand, tool, board, figure, and bench shadow rightward.\", \"photo\": \"45mm, f/4, 3 m, Candid diagonal medium-wide view from slightly above bench height; the paired boards dominate the lower frame, Bi Sheng sits off-centre, and the near bench edge blurs.\", \"medium\": \"photograph\", \"color_palette\": [\"#1E1913\", \"#4A3B28\", \"#8A7350\", \"#C9B892\", \"#2B2B2A\"]}, \"compositional_deconstruction\": {\"background\": \"A close-cropped Northern Song workroom with a packed-earth floor, stout rough-plank bench, lime-plastered wall, and open timber doorway; only the working surface and two artisans resolve clearly. One high daylight source enters through the doorway at frame left, giving matte iron narrow highlights and casting every hand, tool, board, figure, and bench shadow rightward.\", \"elements\": [{\"type\": \"obj\", \"bbox\": [90, 480, 900, 850], \"desc\": \"One commoner artisan stands right of centre, head bowed and face three-quarter away; thumb and forefinger grip one piece while his cuff hides the wrist.\"}, {\"type\": \"obj\", \"bbox\": [130, 40, 880, 420], \"desc\": \"One artisan leans over the left board, face turned down; both closed hands overlap around a round pad and sleeves bunch against the bench edge.\"}, {\"type\": \"obj\", \"bbox\": [390, 20, 900, 980], \"desc\": \"A waist-high four-legged timber bench supports both boards; its near edge is polished by forearms, with one split pegged beside the right leg.\"}, {\"type\": \"obj\", \"bbox\": [460, 70, 760, 460], \"desc\": \"The left matte iron board, approximately 40 by 28 cm, supports a cooled inked form within its fitted iron frame.\"}, {\"type\": \"obj\", \"bbox\": [430, 90, 720, 450], \"desc\": \"One flexible paper sheet lies flush over the left form and curls slightly at its free corner; the round fibre pad compresses against its centre.\"}, {\"type\": \"obj\", \"bbox\": [460, 530, 770, 920], \"desc\": \"The right matte iron board, approximately 40 by 28 cm, contains a thin resin-and-ash bed within a fitted iron frame.\"}, {\"type\": \"obj\", \"bbox\": [370, 650, 690, 890], \"desc\": \"One face-down piece descends toward an open gap; exactly five irregular fired-clay pieces resolve nearby while the completed far portion falls softly out of focus.\"}, {\"type\": \"obj\", \"bbox\": [780, 0, 1000, 1000], \"desc\": \"Packed earth supports both artisans and four bench legs; a pale worn patch lies beneath the printer’s shifting front foot.\"}]}}", "prompt_sha256": "10a68b5d7cf916cb74889de8b07ba55871c0cc13153d88d1f15636c489d6473e"}