Slashdot had a story recently on how in 1942, the allies were able to estimate the number of German taks produced based on the serial numbers of the tanks. In 2010, a German hacker is doing the exact same thing with Xboxes. This article describes the generic approach, shows some results, and provides previously unreleased raw data of 14,000 Xbox serials so you can do your own statistics!

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If they have several consoles in stock, it there a way to check the serial number on the box to determine when the console was manufactured? I’d rather buy one that was made more recently as opposed to one that has been sitting there since November. Check You are about to buy a second hand item or you just found something on the street, it is always a good idea to check if it is reported as lost or stolen. Just enter any identifying information like serial number, plate number, VIN, IMEI or anything else that is unique to the item type you want to check.

Between October 2003 and January 2005, the Xbox Linux Project asked all visitors to their website to enter their Xbox serial numbers, date and country of manufacture, ROM version, hard disk and DVD drive brand and other properties, and gathered more than 14,000 entries. The original idea was to find a rule to deduce the hard disk and DVD drive types in an Xbox by only looking at the serial number, which was visible through the unopened packaging.

The serial sticker on an Xbox looks like this: Digital photo frame with wifi.

After looking at several serial numbers, it was already clear that the last two digits (“03” in my example) are the location of manufacture: 02 is Mexico, 03 is Hungary, 05 is China and 06 is Taiwan. The three digits before (“209” in my example) are the one-digit year (“2” for “2002”) and the two-digit calender week (“09” for around the first week of March).

How to Check Serial Number on Your Xbox Series X. Check the Code on the Back. Your first option for checking the serial number of the Xbox Series X is to go and check the sticker on the back of. Check your Microsoft warranty and create service orders. If you have a Surface or Xbox, you can use your Microsoft account to check its warranty and make warranty claims. Registering your Microsoft device. Before you can check your warranty or get service, you may need register your Surface or Xbox. This includes Stealth 300 for PS4, Stealth 300 for Xbox One, Stealth 600 for PS4/PS4 Pro, Stealth 600 for Xbox One, Stealth 700 for PS4/PS4 Pro, Stealth 700 for Xbox One. Please note that in some cases, the serial number may not begin with 'S/N:' but will be located under the QR Code.

Now we want to find out how many devices were manufactured. A first approximation is to look at the manufacturing dates of all Xboxes in our database.

This gives us an idea when production was ramped up (in 2001 and 2002 in November, and in 2003 in August, September and October), but the statistics don’t give us absolute numbers, and they are biased towards older devices (newer devices are not entered yet, and visitors of our site tend to be early adopters).

But what about these first seven digits of the serial number? Shouldn’t these be actual “serial” numbers? Let’s look at all devices from August 2003 and sort the first seven digits by manufacturing date:

This does not look like a serial number. But all numbers are > 1,000,000, which implies that the first digit has a special meaning and is not part of the number. Let’s look at distribution of the first digit:

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The first digit seems to be the number of the assembly line in the factory! Beamng drive free download mac. So let’s look at the remaining 6 digits again:

This looks a lot better! But there are several things interleaved in this chart – because the serial numbers are of course counted independently in every factory. If we filter just all numbers form the Chinese factory, we get this:

We can see serial numbers are counted up every week, but we still see all assembly lines interleaved here, and the different lines don’t reset at the same time. Here is line 6 all by itself:

Looks almost perfect, if we assume the wild shots are caused by typos. Here is a manually fixed version of it:

Voilà! Serial numbers that count up monotonically and get reset on every Sunday.

By inspection of the graph, we can estimate that assembly line 6 of the factory in China produced about 275,000 devices per week in week 33 (mid August) of 2003. This works well, because we have so many samples; but for other weeks, we have as few as five. This is the formula for the German Tank Problem:

k is the sample size and m s the highest serial number observed.

The estimate of Xboxes produced by assembly line 6 in China in week 33 of 2003 is therefore 285,269. Applying this to every assembly line of every factory and every week, it should be easy to get great statistics on the productivity of the different lines and factories, as well as a very good estimate of the total number of devices produced. Pediatric glasgow coma scale pdf in vector. …and this is where you come in!

The Data

You want to do your own statistics? Here is the raw data:

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xbox_serials.csv (2.5 MB)

It is a comma-separated-value file with the following columns:

Column	Example	Description	Comment
1	2002-03-03	Manufacture Date	YYYY-MM-DD
2	2002-04-30	Date of Purchace	YYYY-MM-DD
3	de	Country of Purchase	two-digit code
4	1166356 20903	Serial Number	nnnnnnn nnnnn
5	v1.0	Xbox Version	motherboard revision
6	3944	Kernel Version	ROM version as shown in “About” dialog
7	4034	Dashboard Version	HD software version as shown in “About” dialog
8	Unknown/Other	Flash	what’s printed on flash ROM chip
9	PAL	Video Standard	PAL or NTSC
10	Black	Case Color	Xboxes are black, but there are some special editions
11	Thomson	DVD Drive	Philips, Samsung, Thomson
12	Seagate 10 GB	Hard Disk	Seagate or Western Digital
13	Conexant	Video Encoder Brand	Conexant, Focus, Xcalibur
14	Golden Xbox	comments	free-form field

Please note that people were able to fill some fields with arbitraty data, so they might not necessarily be in exactly the specified form. There are also lots of typos in the serial numbers and the month and day fields in the data fields have been mixed up sometimes. You probably want to run a script over the data first that sanitizes some of the input, e.g. removes dashes and spaces from serial numbers etc.

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Here are some ideas on what you might want to find out:

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Is there a better formula to estimate the number of Xboxes produced per week on a certain assembly line?
What day does a week start with? Does the factory produce Xboxes on Sundays? Do they produce just as many? Is it different in the respective countries?
How many Xboxes were produced per assembly line, per week and per factory?
Are all assembly lines in a certain factory just as productive?
Are all factories just as productive (per assembly line)?
Did productivity go up over time? Did it hit a maximum?
How many Xboxes were produced total?
Does an assembly line in a certain factory use all the same flash chips, hard drives and DVD drives in a