two quick points.
1) you don't have to re-upload the whole video just the sha1 or some 
sort of hash of the assigned chunk.
2) should be relatively strait froward to catch abuse via assigned user 
id's to each chunk uploaded. But checking the sha1 a few times from 
other random clients that are encoding other pieces would make abuse 
very difficult... at the cost of a few small http requests after the 
encode is done, and at a cost of slightly more CPU cylces of the 
computing pool. But as this thread has pointed out CPU cycles are much 
cheaper than bandwidth bits or humans time patrolling derivatives.

We have the advantage with a system like Firefogg that we control the 
version of the encoder pushed out to clients via auto-update and check 
that before accepting their participation (so sha1s should match if the 
client is not doing anything fishy)

But these are version 2 type features conditioned on 1) Bandwidth being 
cheep and internal computer system maintenance and acquisition being 
slightly more costly. (and or 2) We probably want to integrating a thin 
bittorrent client into firefogg so we hit the "sending out the source 
footage only once" upstream cost ratio.

We need to start exploring the bittorrent integration anyway to 
distribute the bandwidth cost on the distribution side. So this work 
would lead us in a good direction as well.

peace,
--michael

Tisza Gergő wrote:
> Steve Bennett <stevagewp <at> gmail.com> writes:
>
>   
>> Why are we suddenly concerned about someone sneaking obscenity onto a
>> wiki? As if no one has ever snuck a rude picture onto a main page...
>>     
>
> There is a slight difference between vandalism that shows up in recent changes
> and one that leaves no trail at all except maybe in log files only accessible
> for sysadmins.
>
>
> _______________________________________________
> Wikitech-l mailing list
> [email protected]
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>   


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