1. Exquisite Tweets from @buster, @bryce, @gerwitz, @rk, @kellan, @ian

    blechCollected by blech

    8:36pm Trying to figure out how URL-shorteners work (in the dark). Anyone know the hashing algorithm? flic.kr/p/9zMj3n

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    buster

    Buster Benson

  2. @bryce I totally would for actual url-shortening, but right now just trying to figure it out for something else (click-tracking).

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    buster

    Buster Benson

  3. @busterbenson I don't think most services hash, but rather generate random GUIDalikes. e.g. bit.ly/frrqQN

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    gerwitz

    Hans Gerwitz

  4. @busterbenson no hashing algorithms. Random (or sequential) strings and a lookup table

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    rk

    Ryan King

  5. @busterbenson @rk Flickr uses hashing, don't think anyone else does, it has some nice properties, but also challenges. bit.ly/eS5QpS

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    kellan

    kellan

  6. @kellan @busterbenson you can hash because you only shorten photo urls. we have to shorten every possible url.

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    rk

    Ryan King

  7. @rk @kellan This makes sense. Thanks for the enlightenment.

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    buster

    Buster Benson

  8. @rk @busterbenson absolutely. not only does Flickr control the photoid space, they're also already naturally compact.

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    kellan

    kellan

  9. @kellan @rk @busterbenson FWIW, rd.io short URLs are just packed & obfuscated values.

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    ian

    Ian (Taylor's Version)