# Cryptography puzzle

I'm currently broadening my knowledge in cryptography (or, at least, am trying to) and so I stumbled upon a puzzle I can't crack. It goes like this:

You're given a set of pairs. The second number is somehow influenced by the first. Could you guess how?

$1337276946 <-> 3458 \\ 1337276380 <-> 3349\\ 1337288791 <-> 5334\\ 1337332907 <-> 2696\\ 1337333649 <-> 2811\\ 1337333658 <-> 2815\\ 1337333667 <-> 2816\\ 1337333681 <-> 2817\\ 1337334866 <-> 3046$

So I thought it may be just some simple concept of hashing and so the numbers on the left are congruent to those on the right by some modulo x. However, Wolfram finds no solutions for such interpretation. Could you please help me find another way to bite it? I'm kind of clueless right now.

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With the current data there are innumerably many possible solutions to this problem. Just from plotting these in a scatter graph, a possible sinusoidal pattern appears, though it is rather weak. Also, interpolation will give you a polynoimal of degree at most 9 which produces these outputs given these inputs. Is this the sum total of all information stated in the problem? Is it possible the relationship is not even mathematical (e.g. could these be phone numbers and pages in a directory?) –  Alastair Litterick May 18 '12 at 10:35
Just a thought, but the numbers on the left are Unix timestamps from yesterday and today. –  Peter Taylor May 18 '12 at 12:43
What is the source of the problem? –  Jonas Meyer May 19 '12 at 3:31