Question: How wide was the canvas?
About the article "Dora Maar au Chat", section "History".

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Here is a non-exhaustive list of the most significant works of Tereza Arriaga:BIOBURGOS  "Em Novelo", oil on plywood, 65x46 cm, 1967.
"Domínio", oil on plywood, 62x43 cm, 1967.
"Sua Excelência", oil on plywood, 62x40 cm, 1967.
"Dona", oil on plywood, 56x39 cm, 1968.
"Bioburgo", oil on canvas, 73x54 cm, 1968.
"Quietude", oil on plywood, 62x40 cm, 1970.
"Refúgio", oil on canvas, 92x65 cm, 1971.
"Ser-não ter", oil on canvas, 92x60 cm, 1971.
"Noite pessoa", oil on canvas, 92x60 cm, 1971.
"Pastilha elástica", oil on canvas, 65x46 cm, 1972.
"Fulgor", oil on canvas, 100x65 cm, 1972.
"Cativeiro",oil on canvas, 100x65 cm, 1972.
"Seiva I", oil on canvas, 116,81 cm, 1972.
"Querida flor", oil on canvas, 81x60 cm, 1973.
"Seiva II", oil on canvas, 116x81 cm, 1973.
"Entardecer", oil on canvas, 81x60 cm, 1973.
"Renascer", oil on canvas, 116x81 cm, 1973.
"Indo", oil on canvas, 81x60 cm, 1974 (this painting was initially called "No Amarelo").
"Existência-Inexistência", oil on canvas, 116x81 cm, 1974.
"Aterraestámorrendo", oil on canvas, 81x60 cm, 1979.
"...e quero rios de água potável...", oil on canvas, 81x60 cm, 1979.
HELIOBURGOS  "... Na penumbra", oil on canvas, 92x65 cm, 1985.
"Meditação", oil on canvas, 73x54 cm, 1987.
"No vermelho", oil on canvas, 81x60, 1989.
"Sonhar montanhas", oil on canvas, 80x60 cm, 1990.
"Noites acordadas", oil on canvas, 81x60 cm, 1990.
"Mistério", oil on canvas, 81x60 cm, 1990.
"Algo ao longe", oil on canvas, 81x60 cm, 1990.
"A noz", oil on canvas, 81x60 cm, 1990.
"Invernal", oil on canvas, 73x54, 1990.
"Mistério nocturno", oil on canvas, 65x50 cm, 1990.
"Cachos de luas", oil on canvas, 81x60 cm, 1990.
"Eu noite", oil on canvas, 81x54 cm, 1990.
"Um olhar", oil on canvas, 65x50 cm, 1991.
"No azul", oil on canvas, 92x65 cm, 1991.
"... Ao Sol I", oil on canvas, 92x65 cm, 1992.
"... Ao Sol II", oil on canvas, 100x73 cm, 1992.
"... Ao Sol III", oil on canvas, 100x73 cm, 1992.
"Manhãs", oil on canvas, 100x73 cm, 1992.
"Sideral", oil on canvas, 100x73 cm, 1992.
"Janela da noite", oil on canvas, 92x65 cm, 1992.
"Noite", oil on canvas, 100x73 cm, 1993.
"Flor do Sol", oil on canvas, 100x73 cm, 1993.
BIOHÉLIOS  "Ecos da memória", oil on canvas, 100x73 cm, 1994.
"La fajro" ("Fire", in Esperanto), oil on canvas, 100x73 cm, 1995.
"Vibrações", oil on canvas, 116x89 cm, 1995.
"Abandono", oil on canvas, 100x73 cm, 1995.
"Âmago", oil on canvas, 81x60 cm, 1995.
"Evocando", oil on canvas, 100x81 cm, 1996.
"Xantos", oil on canvas, 100x73 cm, 1998.
"Du", oil on canvas, 92x73 cm, 1998.
"Personagem", oil on canvas, 100x73 cm, 1999.
"Infindo II", oil on canvas, 81x60 cm, 1999.
"Sinal", oil on canvas, 100x73 cm, 2002.  
Hugh Jackman appeared in the 2013 commercial for the Canvas Turbo smart phone.
On July 2013, Chitrangada Singh poses for Canvas 4 phablet in New Delhi.
The Canvas HD A 116 model was launched in 2013. as was the Canvas Juice model. 
 Canvas 1.0 (Macintosh) Canvas 2.0 (Macintosh) Canvas 3.0 (Macintosh) 1990 Canvas 3.5 (Macintosh and Windows) 1992 Canvas 5 (Macintosh and Windows) 1996 Canvas 6 (Macintosh and Windows) 1998 Canvas 7 (Macintosh and Windows) 1999 Canvas 8 (Mac OS 9, Mac OS X, and Windows) 2001 Canvas 9 (Mac OS X and Windows) 2003 Canvas X (Mac OS X and Windows) 20051 Canvas 11 (Windows Vista) 2007 Canvas 12 (Windows XP, Vista, Seven) 2010 Canvas 14 (Windows XP/Vista /7/8) Canvas 15 (Windows XP/Vista/7/8) 19 Nov 2013 Version history.
In 2007 ACD Systems stopped making Macintosh versions of Canvas.
The last Mac OS X update was Canvas X.0.2, build 926.
Canvas Mac ResurrectionOn 4 June 2013 ACD Systems announced that they have formed a new development team to support the release of Canvas for Mac OS X (Beta available in spring 2014).
On 20 November 2013: Canvas for Mac is arriving.
Good news on the Canvas Mac front, we've increased the number of developers working on the Mac version now that Canvas 15 for PC has been released, and while we have Canvas X functioning on Mac, we're busy making sure that all the small stuff is working correctly, and hope to begin a closed public beta in spring of 2014.http://forum.acdsee.com/forum/canvas/326-canvas-for-mac 
  How will the plug-in be displayed?
Will you need an IFRAME canvas?
Will the platform serve as proxy for data exchange between the plug-in canvas and remote web application?  
SVG is an earlier standard for drawing shapes in browsers.
However, unlike Canvas, which is raster-based, SVG is vector-based, i.e., each drawn shape is remembered as an object in a scene graph or Document Object Model, which is subsequently rendered to a bitmap.
This means that if attributes of an SVG object are changed, the browser can automatically re-render the scene.
In the Canvas example above, once the rectangle is drawn, the fact that it was drawn is forgotten by the system.
If its position were to be changed, the entire scene would need to be redrawn, including any objects that might have been covered by the rectangle.
But in the equivalent SVG case, one could simply change the position attributes of the rectangle and the browser would determine how to repaint it.
There are additional JavaScript libraries that add scene-graph capabilities to the Canvas element.
It is also possible to paint a canvas in layers and then recreate specific layers.SVG images are represented in XML, and complex scenes can be created and maintained with XML editing tools.
The SVG scene graph enables event handlers to be associated with objects, so a rectangle may respond to an codice_1 event.
To get the same functionality with canvas, one must manually match the coordinates of the mouse click with the coordinates of the drawn rectangle to determine whether it was clicked.
Conceptually, canvas is a lower-level API upon which an engine, supporting for example SVG, might be built.
There are JavaScript libraries that provide partial SVG implementations using Canvas for browsers that do not provide SVG but support Canvas, such as the browsers in Android 2.x.
However, this is not (normally) the case—they are independent standards.
The situation is complicated because there are scene graph libraries for Canvas, and SVG has some bitmap manipulation functionality.