Folks, I'm contributing to an open source project and working on handling tick data. We have a need for universal instrument id. Does anything like that already exist? Specifically, the ordinary way of identifying securities with string data like "GOOG" or "USD/JPY" Or "ES01" or whatever is extremely inefficient at high speed processing of millions of ticks. We need the universal id to be binary like a 32 bit or 64 bit integer value. Does any thing like that exist? In the next post I'll mention a couple ideas we have for designing one and seek your opinions. If it comes to that we will probably check into the process for submitting this to an international standards organization for review and approval as a standard.