Question:  In a Heartbeat is a 2017 computer-animated short film funded by which American public-benefit corporation based in Brooklyn, New York, that maintains a global crowdfunding platform focused on creativity?

Context paragraphs:
MusicBee (crowdfunding): MusicBee is a crowdfunding platform focused on independent music based in Hong Kong.  The company stated its mission as to gather resources and help bring independent music projects into life, providing musicians with dreams and opportunities.  MusicBee has reportedly received $2 million funding over 15 music project within one year.

GoFundMe: GoFundMe is a for-profit corporation crowdfunding platform that allows people in some but not all countries to raise money for events ranging from life events such as celebrations and graduations to challenging circumstances like accidents and illnesses.  From 2010 to 2017, over $3 billion was raised on the platform for over 2 million individual campaigns.  The company is based in San Diego, California.

In a Heartbeat (film): In a Heartbeat is a 2017 computer-animated short film produced by Ringling College of Art and Design.  Written and directed by Esteban Bravo and Beth David, the project was funded through Kickstarter where it racked up a total of $14,191 from 416 backers on a goal of $3,000.  The short film concerns a closeted boy who has a crush on another boy and his heart's desire to be with him.  The short has received wide praise on various platforms.

Lou (2017 film): Lou is a 2017 computer-animated short film produced by Pixar Animation Studios.  Written and directed by Dave Mullins, it was theatrically released alongside Pixar's "Cars 3" on June 16, 2017.  The short is about a lost and found box and the unseen monster within.

Red's Dream: Red's Dream is a 1987 American computer-animated short film produced by Pixar and directed by John Lasseter.  The short film, which runs four minutes, stars Red, a unicycle.  Propped up in the corner of a bicycle store on a rainy night, Red dreams about a better place.  "Red's Dream" was Pixar's second computer-animated short following "Luxo Jr." in 1986, also directed by Lasseter.

Alike (short film): Alike a 3D computer-animated short film released in 2016, directed by Daniel Martinez Lara and Rafa Cano Mendez.  The animation production took 4 years to complete along with the help of ex-animation student using the free 3D animation application, 'Blender'.  The animated short is a story of the relationship of a father and his son who live in a society "where order and work ethic literally choke the colour and creativity out of its inhabitants".

Kickstarter: Kickstarter is an American public-benefit corporation based in Brooklyn, New York, that maintains a global crowdfunding platform focused on creativity.  The company's stated mission is to "help bring creative projects to life".  Kickstarter has reportedly received more than $1.9 billion in pledges from 9.4 million backers to fund 257,000 creative projects, such as films, music, stage shows, comics, journalism, video games, technology and food-related projects.

Tin Toy: Tin Toy is a 1988 American computer-animated short film produced by Pixar and directed by John Lasseter.  The short film, which runs five minutes, stars Tinny, a tin one-man-band toy, attempting to escape from Billy, a destructive baby.  The third short film produced by the company's small animation division, it was a risky investment: due to low revenue produced by Pixar's main product, the eponymous computer to manage animations, the company was under financial constraints.

Impact Guru: Impact Guru is a donation based crowdfunding platform that offers global crowdfunding solutions for NGOs, social enterprises, startups and individuals.  It was launched by Maneka Gandhi, Union Cabinet Minister for Women & Child Development, Government of India in August 2015.

GlobalGiving: GlobalGiving is 501(c)(3) non-profit organization based in the United States that provides a global crowdfunding platform for grassroots charitable projects.  Since 2002, more than 560,000 donors on GlobalGiving have raised more than $245 million to support more than 15,000 projects in 165 countries.

Supporting paragraphs: In a Heartbeat (film) Kickstarter
Answer: Kickstarter