I agree, a bounty hunter wouldnt just give out information...though something like that is most likely 'public record' meaning, Obi-Wan could probably have gotten the info elsewhere, probably the cloners. Also, its possible its something he says to throw off Obi-Wan ( maybe he was instructed to give that response if every asked) though i have to admit that seems a stretch.

my main problem with that scene is how Obi-Wan acts. If i were the cloners i would be very suspecious. He knew very little about the clones, and was asking questions like he wasnt involved and the Cloners didnt question this at all? The Obi-Wan of ANH would have been more clever, subtle in his collecting of information.

-Darth Simon