Misplaced Pages

#954045

39-526: RPM ( ISSN   0315-5994 and later ISSN   0033-7064 ) was a Canadian music-industry publication that featured song and album charts for Canada. The publication was founded by Walt Grealis in February 1964, supported through its existence by record label owner Stan Klees . RPM ceased publication in November 2000. RPM stood for "Records, Promotion, Music". The magazine's title varied over

78-702: A 977 "country code" (compare the 978 country code (" bookland ") for ISBNs ), followed by the 7 main digits of the ISSN (the check digit is not included), followed by 2 publisher-defined digits, followed by the EAN check digit (which need not match the ISSN check digit). ISSN codes are assigned by a network of ISSN National Centres, usually located at national libraries and coordinated by the ISSN International Centre based in Paris . The International Centre

117-414: A top-50 chart and remained this way until 4 August 1984, whereupon it reverted to a top-100 singles chart. For the first several weeks of its existence, the magazine did not compile a national chart, but simply printed the current airplay lists of several major-market top-40 stations. A national chart was introduced in the 22 June 1964 issue, and the first national number-one single was " Chapel of Love " by

156-414: A wider range of characters in the check digit, for example letters plus numbers. The final digit of a Universal Product Code , International Article Number , Global Location Number or Global Trade Item Number is a check digit computed as follows: A GS1 check digit calculator and detailed documentation is online at GS1's website. Another official calculator page shows that the mechanism for GTIN-13

195-632: Is C =5. To calculate the check digit, the following algorithm may be used: 0 ⋅ 8 + 3 ⋅ 7 + 7 ⋅ 6 + 8 ⋅ 5 + 5 ⋅ 4 + 9 ⋅ 3 + 5 ⋅ 2 = 0 + 21 + 42 + 40 + 20 + 27 + 10 = 160 . {\displaystyle {\begin{aligned}&0\cdot 8+3\cdot 7+7\cdot 6+8\cdot 5+5\cdot 4+9\cdot 3+5\cdot 2\\&=0+21+42+40+20+27+10\\&=160\;.\end{aligned}}} The remainder of this sum modulo 11

234-508: Is 0×10 + 2×9 + 0×8 + 1×7 + 5×6 + 3×5 + 0×4 + 8×3 + 2×2 + 1×1 = 99 ≡ 0 (mod 11). So the ISBN is valid. Positions can also be counted from left, in which case the check digit is multiplied by 10, to check validity: 0×1 + 2×2 + 0×3 + 1×4 + 5×5 + 3×6 + 0×7 + 8×8 + 2×9 + 1×10 = 143 ≡ 0 (mod 11). ISBN 13 (in use January 2007) is equal to the EAN-13 code found underneath a book's barcode. Its check digit

273-475: Is a check digit computed so that multiplying each digit by its position in the number (counting from the right) and taking the sum of these products modulo 11 is 0. The digit the farthest to the right (which is multiplied by 1) is the check digit, chosen to make the sum correct. It may need to have the value 10, which is represented as the letter X. For example, take the ISBN   0-201-53082-1 : The sum of products

312-539: Is a standard label for "Print ISSN", the ISSN for the print media (paper) version of a serial. Usually it is the "default media" and so the "default ISSN". e-ISSN (or eISSN ) is a standard label for "Electronic ISSN", the ISSN for the electronic media (online) version of a serial. Check digit A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. It

351-480: Is an intergovernmental organization created in 1974 through an agreement between UNESCO and the French government. ISSN-L is a unique identifier for all versions of the serial containing the same content across different media. As defined by ISO 3297:2007 , the "linking ISSN (ISSN-L)" provides a mechanism for collocation or linking among the different media versions of the same continuing resource. The ISSN-L

390-538: Is analogous to a binary parity bit used to check for errors in computer-generated data. It consists of one or more digits (or letters) computed by an algorithm from the other digits (or letters) in the sequence input. With a check digit, one can detect simple errors in the input of a series of characters (usually digits) such as a single mistyped digit or some permutations of two successive digits. Check digit algorithms are generally designed to capture human transcription errors . In order of complexity, these include

429-625: Is generated the same way as the UPC. The NOID Check Digit Algorithm (NCDA), in use since 2004, is designed for application in persistent identifiers and works with variable length strings of letters and digits, called extended digits. It is widely used with the ARK identifier scheme and somewhat used with schemes, such as the Handle System and DOI . An extended digit is constrained to betanumeric characters, which are alphanumerics minus vowels and

SECTION 10

#1732773048955

468-424: Is not freely available for interrogation on the web, but is available by subscription. ISSN and ISBN codes are similar in concept, where ISBNs are assigned to individual books . An ISBN might be assigned for particular issues of a serial, in addition to the ISSN code for the serial as a whole. An ISSN, unlike the ISBN code, is an anonymous identifier associated with a serial title, containing no information as to

507-476: Is one of a serial's existing ISSNs, so does not change the use or assignment of "ordinary" ISSNs; it is based on the ISSN of the first published medium version of the publication. If the print and online versions of the publication are published at the same time, the ISSN of the print version is chosen as the basis of the ISSN-L . With ISSN-L is possible to designate one single ISSN for all those media versions of

546-466: Is the same for Global Location Number /GLN. For instance, the UPC-A barcode for a box of tissues is "036000241457". The last digit is the check digit "7", and if the other numbers are correct then the check digit calculation must produce 7. Another example: to calculate the check digit for the following food item "01010101010 x ". The final character of a ten-digit International Standard Book Number

585-490: Is then calculated: 160 11 = 14  remainder  6 = 14 + 6 11 {\displaystyle {\frac {160}{11}}=14{\mbox{ remainder }}6=14+{\frac {6}{11}}} If there is no remainder, the check digit is 0; otherwise the remainder is subtracted from 11. If the result is less than 10, it yields the check digit: 11 − 6 = 5 . {\displaystyle 11-6=5\;.} Thus, in this example,

624-507: The Damm algorithm (2004), that too detects all single-digit errors and all adjacent transposition errors. These three methods use a single check digit and will therefore fail to capture around 10% of more complex errors. To reduce this failure rate, it is necessary to use more than one check digit (for example, the modulo 97 check referred to below, which uses two check digits—for the algorithm, see International Bank Account Number ) and/or to use

663-590: The digital object identifier (DOI), an ISSN-independent initiative, consolidated in the 2000s. Only later, in 2007, ISSN-L was defined in the new ISSN standard (ISO 3297:2007) as an "ISSN designated by the ISSN Network to enable collocation or versions of a continuing resource linking among the different media". An ISSN can be encoded as a uniform resource name (URN) by prefixing it with " urn:ISSN: ". For example, Rail could be referred to as " urn:ISSN:0953-4563 ". URN namespaces are case-sensitive, and

702-401: The print and electronic media versions of a serial need separate ISSNs, and CD-ROM versions and web versions require different ISSNs. However, the same ISSN can be used for different file formats (e.g. PDF and HTML ) of the same online serial. This "media-oriented identification" of serials made sense in the 1970s. In the 1990s and onward, with personal computers, better screens, and

741-673: The publisher or its location . For this reason a new ISSN is assigned to a serial each time it undergoes a major title change. Since the ISSN applies to an entire serial, other identifiers have been built on top of it to allow references to specific volumes, articles, or other identifiable components (like the table of contents ): the Publisher Item Identifier (PII) and the Serial Item and Contribution Identifier (SICI). Separate ISSNs are needed for serials in different media (except reproduction microforms ). Thus,

780-473: The 2 and 5 multiply to yield 10. The ISBN-10 code instead uses modulo 11, which is prime, and all the number positions have different weights 1, 2, ... 10. This system thus detects all single-digit substitution and transposition errors (including jump transpositions), but at the cost of the check digit possibly being 10, represented by "X". (An alternative is simply to avoid using the serial numbers which result in an "X" check digit.) ISBN-13 instead uses

819-790: The Dixie Cups . Prior to the introduction of RPM's national chart, the CHUM Chart issued by Toronto radio station CHUM was considered the de facto national chart. The final number-one single in the magazine's chart was " Music " by Madonna . RPM' s Top Singles chart was initially based on airplay and record company reports. Beginning in June 1964, the chart began factoring in record store sales reports. In September 1988, RPM began basing their Top Singles chart solely on airplay. The modern Juno Awards had their origins in an annual survey conducted by RPM since its founding year. Readers of

SECTION 20

#1732773048955

858-517: The GS1 algorithm used in EAN numbers. More complicated algorithms include the Luhn algorithm (1954), which captures 98% of single-digit transposition errors (it does not detect 90 ↔ 09) and the still more sophisticated Verhoeff algorithm (1969), which catches all single-digit substitution and transposition errors, and many (but not all) more complex errors. Similar is another abstract algebra -based method,

897-597: The ISSN namespace is all caps. If the checksum digit is "X" then it is always encoded in uppercase in a URN. The URNs are content-oriented , but ISSN is media-oriented: A unique URN for serials simplifies the search, recovery and delivery of data for various services including, in particular, search systems and knowledge databases . ISSN-L (see Linking ISSN above) was created to fill this gap. The two standard categories of media in which serials are most available are print and electronic . In metadata contexts (e.g., JATS ), these may have standard labels. p-ISSN

936-451: The ISSN system is also assigned a linking ISSN ( ISSN-L ), typically the same as the ISSN assigned to the serial in its first published medium, which links together all ISSNs assigned to the serial in every medium. An ISSN is an eight-digit code, divided by a hyphen into two four-digit numbers. The last digit, which may be zero through nine or an X, is a check digit , so the ISSN is uniquely represented by its first seven digits. Formally,

975-524: The October 9, 1964 edition of R. P. M. , in DATELINE NEW YORK by Harriet Wasser. RPM maintained several format charts, including Top Singles (all genres), Adult Contemporary, Dance , Urban, Rock/Alternative , and Country Tracks (or Top Country Tracks) for country music. On 21 March 1966, RPM expanded its Top Singles chart from 40 positions to 100. On 6 December 1980, the main chart became

1014-478: The Web, it makes sense to consider only content , independent of media. This "content-oriented identification" of serials was a repressed demand during a decade, but no ISSN update or initiative occurred. A natural extension for ISSN, the unique-identification of the articles in the serials, was the main demand application. An alternative serials' contents model arrived with the indecs Content Model and its application,

1053-457: The actual vote winner for Top Canadian Content record company was disqualified due to a conflict of interest involving an employee of that company who was also working for RPM . Therefore, runner-up Capitol Records was declared the category's winner. The Annual RPM Awards for 1965 were announced in the 17 January 1966 issue, with more country music categories than the previous year: The winners were: ISSN (identifier) The ISSN system

1092-408: The check digit C is 5. To confirm the check digit, calculate the sum of all eight digits of the ISSN multiplied by their position in the number, counting from the right. (If the check digit is X, add 10 to the sum.) The remainder of the sum modulo 11 must be 0. There is an online ISSN checker that can validate an ISSN, based on the above algorithm. ISSNs can be encoded in EAN-13 bar codes with

1131-663: The check digit would be 5, giving 48715. Systems with weights of 1, 3, 7, or 9, with the weights on neighboring numbers being different, are widely used: for example, 31 31 weights in UPC codes, 13 13 weights in EAN numbers (GS1 algorithm), and the 371 371 371 weights used in United States bank routing transit numbers . This system detects all single-digit errors and around 90% of transposition errors. 1, 3, 7, and 9 are used because they are coprime with 10, so changing any digit changes

1170-460: The check digit; using a coefficient that is divisible by 2 or 5 would lose information (because 5×0 = 5×2 = 5×4 = 5×6 = 5×8 = 0 modulo 10) and thus not catch some single-digit errors. Using different weights on neighboring numbers means that most transpositions change the check digit; however, because all weights differ by an even number, this does not catch transpositions of two digits that differ by 5 (0 and 5, 1 and 6, 2 and 7, 3 and 8, 4 and 9), since

1209-440: The following: In choosing a system, a high probability of catching errors is traded off against implementation difficulty; simple check digit systems are easily understood and implemented by humans but do not catch as many errors as complex ones, which require sophisticated programs to implement. A desirable feature is that left-padding with zeros should not change the check digit. This allows variable length numbers to be used and

RPM (magazine) - Misplaced Pages Continue

1248-405: The general form of the ISSN (also named "ISSN structure" or "ISSN syntax") can be expressed as follows: where N is in the set { 0,1,2,...,9 }, a decimal digit character, and C is in { 0,1,2,...,9,X }; or by a Perl Compatible Regular Expressions (PCRE) regular expression : For example, the ISSN of the journal Hearing Research , is 0378-5955, where the final 5 is the check digit, that

1287-498: The length to be changed. If there is a single check digit added to the original number, the system will not always capture multiple errors, such as two replacement errors (12 → 34) though, typically, double errors will be caught 90% of the time (both changes would need to change the output by offsetting amounts). A very simple check digit method would be to take the sum of all digits ( digital sum ) modulo 10. This would catch any single-digit error, as such an error would always change

1326-473: The letter 'l' (ell). This restriction helps when generating opaque strings that are unlikely to form words by accident and will not contain both O and 0, or l and 1. Having a prime radix of R=29, the betanumeric repertoire permits the algorithm to guarantee detection of single-character and transposition errors for strings less than R=29 characters in length (beyond which it provides a slightly weaker check). The algorithm generalizes to any character repertoire with

1365-526: The magazine were invited to mail in survey ballots to indicate their choices under various categories of people or companies. The RPM Awards poll was transformed into a formal awards ceremony, the Gold Leaf Awards , in 1970. These became the Juno Awards in following years. The RPM Awards for 1964 were announced in the 28 December 1964 issue: A column on page 6 of that issue noted that

1404-450: The sum, but does not catch any transposition errors (switching two digits) as re-ordering does not change the sum. A slightly more complex method is to take the weighted sum of the digits, modulo 10, with different weights for each number position. To illustrate this, for example if the weights for a four digit number were 5, 3, 2, 7 and the number to be coded was 4871, then one would take 5×4 + 3×8 + 2×7 + 7×1 = 65, i.e. 65 modulo 10, and

1443-646: The title. The use of ISSN-L facilitates search, retrieval and delivery across all media versions for services like OpenURL , library catalogues , search engines or knowledge bases . The International Centre maintains a database of all ISSNs assigned worldwide, the ISDS Register (International Serials Data System), otherwise known as the ISSN Register . At the end of 2016, the ISSN Register contained records for 1,943,572 items. The Register

1482-462: The years, including RPM Weekly and RPM Magazine . In 1964, Harriett Wasser came on board as the magazine's New York correspondent. She was no stranger to the music industry and she had been associated with many prominent figures in the industry that included Bobby Darin and Bob Crewe . The address at the time for correspondence was Harriet Wasser, 161 West 54th Street, Suite 1202, New York, N.Y. 10019. An example of her work can be seen in page 5 of

1521-643: Was first drafted as an International Organization for Standardization (ISO) international standard in 1971 and published as ISO 3297 in 1975. ISO subcommittee TC 46/SC 9 is responsible for maintaining the standard. When a serial with the same content is published in more than one media type , a different ISSN is assigned to each media type. For example, many serials are published both in print and electronic media . The ISSN system refers to these types as print ISSN ( p-ISSN ) and electronic ISSN ( e-ISSN ). Consequently, as defined in ISO 3297:2007, every serial in

#954045