posted on Nov, 21 2015 @ 01:31 AM
a reply to: swanne
Thanks, Swanne. I was looking at the compression signature at the time.
It's IPTC meta data: iptc.org...
Can find the tags here: www.sno.phy.queensu.ca...
It's part of a Photoshop image resource block.
The filled in components are nonsense strings, I'm not sure what they mean but they are just IPTC meta data string fields.
A Photoshop Image Resource Block which contains the IPTC information and the Photoshop 3.0 header can be inserted into a file without ever opening it
in Photoshop using open source tools and methods. Not hacking methods either, some people just like having it in their metadata.
Here is the output:
Length = 156
Identifier = [Photoshop 3.0]
8BIM: [0x0404] Name="" Len=[0x0080] DefinedName="IPTC-NAA record"
IPTC [002:103] Original Transmission Reference = "qEvR0iYX-8O8bZyInNW9"
IPTC [002:040] Special Instructions =
It's possible that the compression signature was changed from Photoshop once it went through Facebook. So sure it could have been seriously edited
(there is no doubt that it has been altered by Facebook but not that anything was added immediately) but the result seems quite mundane if this is the