Recently some accusations of Starax sculpture forgeries surfaced surrounding the AngelGate show. I heard these third hand so, take it with a grain of salt. I don't know who, but either way it was a legit concern. So I volunteered to do some investigation on whether it's technically possible to do a perfect clone of an object in SL. The copybot and variants circulating today to NOT allow you to specify an arbitrary creator name/ID and creation date. They ALWAYS show the bot's name and the actual date when the copy was made.
Using the built-in Inspect command on the SL viewer pie menu, one can easily scan a list of every single prim any object is made of, with the prim creation date and name of the prim creator right there. So spotting typical copybot forgeries of anything is rediculously simple, since 99% of the prims will NOT be who you expect it to be and the creation dates will all be wrong (and most likely all very very close to the same time since copybot creates all the prims in the copy linkset very quickly). What a forger would typically do is link in a single legit Starax prim (from one of Starax's full-perm objects that are easy to obtain) as the ROOT of the linkset, and that gives the entire object what appears to be a legit creator name and creation date. But Inspect will always show the real story!
Now in the process of learning C# and Asp.Net lately, which has kept me very busy, I spent a lot of time learning the OpenMetaverse libraries (formerly "libsecondlife" or "libsl") so that I could built my own bot, for the fun of it. So I'm fairly familiar with the basics of building a working bot and what is possible and what is not. So I dug into the OpenMetaverse sources and looked for a way to specify a prim creator ID and date. At first glance it appears that there is away to do that when you create a prim, but it turns out all those properties are ignored when you actually rez a prim using the library calls in a bot. Only the critical prim geometry is used to creat the prim, then the client makes a few more function calls to set other properties.
Currently there is no built-in way in the existing libraries to set the creator ID and creation date on a newly rezzed prim like you can other prim properties. In addition I checked the actual network packet definitions and there IS NO network packet defined for setting those properties.
The possibility always exists that there is a very well hidden exploit that lets you set these properties, but there IS NO way to do that with the OpenMetaverse libs today and not even a network packet type defined for that that someone could use to add additional functionality to the libs to allow that. So my conclusion is that this a VERY VERY tiny possibility that it's at all possible and unless someone can prove that there is such an exploit (and report it asap, omg) then the validity of any theoretical copybot variant that can set arbitrary creator IDs and dates on a prim is just not true.
Therefore, if all the prims in a Starax sculpture were made by him, then it's legit and anyone claiming otherwise needs to show some proof that the above exploit is real and then take immediate action to report it so LL can clost that hole in a hurry.
One last note, I have seen Starax scuptures where some of the prims were not made by him. In particular, his Achilles scupture contains prims created by Jeffrey Gomez. It appears he simply used some of Jeffrey's prims in this particular piece, and the bulk of the prims were created by Starax. This was from a reputable source (my Starax wand) so it's definitely legit.