Art entity schema too specific?

Hi!

The "art" entity has an "ebay" string and a "sold" boolean, and those seem to be a little restrictive.

I've been to artists on the tour who have had prints, postcards, duplicate woodcuts, etc. of larger original works. In the current model, for example, each individual postcard would have to have its own listing, one for each item sold, if "ebay" and "sold" were meant to be an accurate representation.

If you intend for the "art" object to represent the originals, maybe "sold" could be something like "original_sold" with a list of values indicating "for sale," "sold" or "not for sale."

Maybe "ebay" could be something like "online_store_link" as I'm sure some artists use things like Society6 and such. Or, at least, the description could allow for non-eBay URLs, even if you keep the identifier the same.

Maybe there could also be a string or list type with the types of reproductions available. It should support more than one item (a comma-delimited string?), and also "none" and "sold out."

Also, since the goal is to support artists on social networks, it would be helpful for more technically-savvy artists to be able to provide links to their own posts on their own social network accounts. This would be a list of URLs the artist has already put online, e.g. their Tumblr post about the work, and their Instagram shot of the work, so people could "reblog" or "regram" the original instead of taking their own (possibly poorer quality) photos if they so chose. I would imagine this would be a list of supported SNs plus URLs, e.g. myartlinks : { "tumblr" : "http://tumblr.example.com/post/2342352", "instagram" : "http://instagram.example.com/p/234059305" }

Maybe Tumblr, Facebook, Twitter, Instagram, and Vine to start?

Thanks,
Vitorio