This text below found at this website explains what Web Preserver is about:
Are you wondering how you can identify, collect and present Website & Facebook data in a legally admissible and authenticated manner?
It’s extremely easy to delete or falsify online data if there isn’t a consistent, provable trustworthy record. You don’t want to end up in Court with faulty, missing or incomplete records, while you don’t have the time to become a digital forensic expert.
What you need is a simple, straight forward way to quickly create a legally admissible screen capture – Without training, deep thought and high expense. A solution that has the timestamps and digital signatures that modern Courts demand.
How it works is explained is described as follows on that website:
Once you’re signed up you simply install the Chrome plugin on your Browser. This puts the plugin on your Browser’s toolbar. Then any time you want to preserve online evidence visit the Social Media page, Blog or Web Page. Simply click the Web Preserver button and voila that content is preserved.
The content will be automatically saved to our Service as well as giving you a download of the materials.
By visiting your WebPreserver account online you can access, share and manage all your files.
And, you can:
Create Authenticated Evidence
Digital evidence – like Web and Social Media pages – require proof of data authenticity and integrity as required by the Federal Rules of Evidence (901). WebPreserver provides this by placing a 256-bit digital signature and timestamps on the captured files using a certified Stratum-1 atomic clock in compliance with the eSign act.
– See more at: http://webpreserver.com/#sthash.e6VkwZU8.dpuf