[DISCLAIMER!! THIS APP IS STILL UNDER CONSTRUCTION, HOPEFULLY WILL GET READY IN TIME FOR THE DEMOS :) ]Favorites Stamper

1. The Ictch

From the Creative Commons blog post: "On Verifying the Commons"

As you may or may not know, CC licenses are irrevocable, but this doesn’t mean creators can’t cease offering a work under the license. When a licensor changes the license of a work (whether it is Creative Commons or otherwise) it simply means that whomever comes across the work in the future will be bound by the new terms and not the older ones. It does not mean, however, that the older licenses are invalidated.

1.1 Useful service: Image Stamper

From the ImageStamper.com FAQ:

What is ImageStamper? ImageStamper is a free tool for keeping dated, independently verified copies of license conditions associated with creative commons images. ImageStamper can act as your witness when you inspect the copyright license of an image that you want to download and use. You can ask ImageStamper to look at the web page with the image to independently verify what exact license conditions apply to that image. ImageStamper will visit this webpage from one of its servers and produce an image 'timestamp' -- a dated record of image contents and of the license conditions that apply to that image. This timestamp will then be permanently stored in your account and you can present it as evidence that you were given appropriate rights to use the image.

1.2 Wouldn't it be nice…

To be able to stamp CC-licensed images from your Flickr favorites?

2. The Scratch

Enter, the Favorites Stamper. A project born as a hack for the Yahoo Hack Day 2008 in São Paulo, developed by Fabricio Zuardi

2.1 What is the Favorites Stamper?

It is a service to load up all your favorites in one single page, along with license filters and shortcuts for the Stamper. Very handy! ;)

2.2 APIs used

Favorites Stamper was only possible thanks to the kind Flickr API, used to query flickr photos and their details (license).
~~Also, the user interface for the application uses YUI as a library to make things smooth and beautiful.~~ - sorry, no time for flowers!

2.3 Enough already. Show me the Code!

Favorites Stamper is an PHP application licensed under a BSD license. You can browse the code and fork it through the github page for the project[TBD, upload the code and link it here].