What kind of information would you be getting from contributors? I ask because there is naturally a concern for users uploading copyright images and I'm interested to learn more about how you plan on handling such matters.
I'm not sure this was ever answered.
Our digital copyright chain (DCC) provides an automated and innovative solution. To upload a photo, a user must have their identity verified. Then each uploaded photo is cryptographically hashed into a relatively small code, and this hash is permanently linked to the user who uploaded it. This link forever exists in the blockchain, through the DCC. Each image will have its own unique hash, but if I were to upload the same image twice, it would have the same hash as the pixels of the image are what are used to create the hash.
A trail of ownership is set for every single photo that passes through the platform, based on this hash and its link to the owner.
Then each uploaded image, by every photographer, is scanned against the DCC for copyright infringement, to see if the hash is the same.
As for preventing a buyer from re-distributing the works. As blockchain records and timestamps every transaction, it is always possible to trace who has legal ownership of an image's license and who doesn't. In the case where an image is discovered where the user doesn't have rightful licensing, this is copyright infringement and is illegal!
At this point copyright law comes into place and the user has the possibility to pay huge fines and many other penalties. For Photochain also, our recent copyright partnership with Copytrack.io should help us to further enforce copyright rules off the Photochain platform.