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SD! :
About :
Registration :
Numbers
Registration Numbers
The Slave Register was created to provide
a central place for the registration of slaves and submissives.
Each registration is
assigned a unique Slave Registration Number ("SLRN".)
The registration should be done by the submissive or slave in question,
and the Register will side with the submissive if there is a subsequent
dispute
with a former owner about control of the registration.
Numbers have 9 digits, written as three groups separated by hyphens -
for example, 123-456-781. This pattern of digits and hyphens helps make
the SLRNs more distinctive, and less likely to be confused with other
numeric identities, such as telephone numbers.
(Until June 2005, 6 digit numbers were issued, and so 123454 became
000-123-454.)
This graph shows growth in the total number of SD! profiles, and the
number of SLRNs. Until June 2005, all TSR profiles had an SLRN, and the rate
of new SLRNs has dropped by about a third as some people join with a
profile name rather than a number. This change also coincided with the
addition of web discussion boards, profile pictures and personal ads to the
website. The increase in the rate of new SLRNs back in June 2001 coincided
with the separation of the Register on to its own website, as
www.SlaveRegister.com. (The TSR history page has more
about the Register's creation and development.)
Slave Registration Numbers can also be represented as
standard barcodes, by adding the
prefix 2672 before the other 9 digits and encoding the resulting 13 digits
as a barcode. The final digit of a barcode is a checkdigit calculated from
the preceding 12 digits, and can be used to validate the integrity of
the whole number and detect scanning errors. The final digit of the 9 digit
SLRNs is chosen so it will also function as a barcode checkdigit.
If you're interested in how this checkdigit is calculated,
the rule is add up the values of the odd numbered
digits (1, 3, 5, ..., 11) of the whole 13 digit number, then
add on three times the values of each even
numbered digit (2, 4, 6, ..., 12). Then take the last digit of this sum,
subtract it from 10, and then take the last digit of what's left as the
checkdigit.
If you know an individual's number, then you can look up their profile and
certificate using the search profiles form. Many
registrants have uploaded
pictures with their SLRN number on a tag
or as a tattoo. The Registration How To? page
answers many questions about getting a number and changing your registration
settings.
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