| Correlating Cookies |
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| The 3rd party cookie becomes the key |
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| (literally,
in DB sense) to join (in DB |
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| sense) the info held by separate co.s |
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| Company
ABC Database |
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| Customer
Cookie Ad Agcy Data1 Data 2 ... |
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| 123 210465 666-666 val 1 val 2 |
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| Company
DEF Database |
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| Customer
Cookie Ad Agcy Data1 Data 2 ... |
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| 123 4491027 666-666 val 1 val 2 |
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