Path: utzoo!lsuc!hcr!paul From: paul@hcr.UUCP (Paul Jackson) Newsgroups: can.general Subject: Re: SIN Number Message-ID: <4367@hcr.UUCP> Date: Wed, 21-Dec-88 10:24:27 EST Article-I.D.: hcr.4367 References: <302@idacom.UUCP> <723@apss.apss.ab.ca> <1902@pembina.UUCP> <420@perle.UUCP> Reply-To: paul@compiler.UUCP (Paul Jackson) Distribution: can Organization: HCR Corporation, Toronto Lines: 17 Keywords: Checksum Procedure Summary: In article <420@perle.UUCP> dave@perle.UUCP (David LeReverend) writes: >... The last (ninth) digit is a "check sum", and it can be >determined using the 9 simple steps shown below. >Steps: >1) Use the even digits to form a four-digit number. >2) Double this four-digit number. >3) Sum the digits of the number determined in step 2. >4) Use the odd digits (but not "C") to form another four-digit number. >5) Sum the digits of the number determined in step 4. >6) Add the results from steps 3 and 5. >7) From the result of step 6, determine the next highest multiple of 10. >8) Find the difference between the results from steps 6 and 7. >9) The result of step 8 becomes the last (ninth) digit in the SIN. >David LeReverend This algorithm did NOT work for my SIN (my arithmetic is admittedly up to the usual standards in this society, but dc wouldn't lie to me, would it?)