Indeed, and for a higher level answer, see here:

https://en.bitcoin.it/wiki/Contracts


On Fri, Jun 21, 2013 at 6:03 AM, Patrick Strateman
<patrick@intersango.com>wrote:

>  It's well answered by this stack exchange question.
>
> http://bitcoin.stackexchange.com/questions/2025/what-is-txins-sequence
>
>
> On 06/20/2013 05:54 PM, Marko Otbalkana wrote:
>
>  Could anyone tell me what CTxIn::nSequence is meant for?
>
>  Best Regards,
>  -Marko
>
>
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