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- #Game uuid generator serial number#
- #Game uuid generator generator#
- #Game uuid generator registration#
- #Game uuid generator mac#
Here’s a few things you can do with GUIDs: If you want GUIDs to be unique, even if the contents are the same, then create them randomly or with a combination of file contents and a random number. If you want duplicate files to have the same GUID, then use GUIDs based on the contents. You can also seed the hash with a unique namespace (like your URL). Files with the same contents will get the same GUID.
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#Game uuid generator mac#
Hardware-based: Make a GUID with certain portions based on hardware features, such as the MAC address of a network card.Time-based: Create a GUID based on the current time.
#Game uuid generator generator#
Random: Just use the system’s random-number generator to create a 128-bit number.There are several ways to create GUIDs ( RFC 4122 describes the conventions), but you want to avoid that mess and use a library. usesguid plugin for Ruby on Rails: Use a GUID instead of an integer as a primary key in your database.GUID libraries for PHP, Perl, Ruby, Python.And if we do? We’ll start using GUIDs with more digits. Trust me, we won’t run out of GUIDs anytime soon. It’s a mind-boggling amount of items, and it’s hard to get our heads around it. Each person gets a personal copy of the internet, every second, for a billion years. Even crazier, let’s say each person gets their own copy of the internet every second. Now let’s say everyone on Earth gets their own copy of the internet, to keep track of their stuff. We can assign a GUID for each of these documents. Think about every wikipedia article, every news item on CNN, every product in Amazon, every blog post from any author. Let’s call it a trillion (10^12) for kicks. Think about how big the Internet is: Google has billions of web pages in its index. Won’t we run out if people get GUID-crazy, assigning them for everything from their pets to their favorite bubble gum flavor? When learning about GUIDs, it feels like 39 measly digits aren’t enough.
#Game uuid generator serial number#
GUIDs give you a unique serial number that can be used on any item in the universe. There are so many GUIDs that you can use them to number everything and not run out. It’s up to the person reading the GUID to figure out the context of the GUID. Social Security Number 123-45-6789 is different from ISBN 123456789 which is different from barcode 123456789.
#Game uuid generator registration#
With regular registration numbers, you start counting at 1 and numbers can overlap. A GUID can be used for people, cars, files, webpages, colors, anything. If you pick a huge random number (39 digits long), it’s really unlikely that someone will pick the same one. This gives us 2^128 or about 10^38 numbers. The format is a well-defined sequence of 32 hex digits grouped into chunks of 8-4-4-4-12. They are usually 128 bits long and look like this in hexadecimal: GUIDs are large, enormous numbers that are nearly guaranteed to be unique. The problem with counting is that we want to create ID numbers without the management headache.
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Cars have VINs, even people have social security numbers. Books have ISBNs and products have barcodes.
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