Not logged in : Login

About: hexadecimal0     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : rdfs:Datatype, within Data Space : ods-qa.openlinksw.com:8896 associated with source document(s)

An encoding of a positive integer (from 0 to infinity) as a hexadecimal string that makes it easy to read and/or fun to present on the web. The purpose of this way of representing hexadecimals is to enable users to copy and paste hexadecimal notations as shown by most browsers, keychains or tools such as opensso, into their rdf representation of choice. There are a wide variety of ways in which such strings can be presented. One finds the following: e1 dc d5 e1 00 8f 21 5e d5 cc 7c 7e c4 9c ad 86 64 aa dc 29 f2 8d d9 56 7f 31 b6 bd 1b fd b8 ee 51 0d 3c 84 59 a2 45 d2 13 59 2a 14 82 1a 0f 6e d3 d1 4a 2d a9 4c 7e db 90 07 fc f1 8d a3 8e 38 25 21 0a 32 c1 95 31 3c ba 56 cc 17 45 87 e1 eb fd 9f 0f 82 16 67 9f 67 fa 91 e4 0d 55 4e 52 c0 66 64 2f fe 98 8f ae f8 96 21 5e ea 38 9e 5c 4f 27 e2 48 ca ca f2 90 23 ad 99 4b cc 38 32 6d bf Or the same as the above, with ':' instead of spaces. We can't guarantee that these are the only ways such tools will present hexadecimals, so we are very lax. The letters can be uppercase or lowercase, or mixed. Some strings may start with initial 00's, and can be stripped in this notation as they often are. Doing this could, in complement of 2 notation turn a positive number into a negative one, if the first hexadecimal character happens to be one of the set {'8', '9', 'a', 'A', 'b', 'B', 'c', 'C', 'd', 'D', 'e', 'E', 'f', 'F'} . As we interpret this string as a hexadecimal number leading 00s are not important (Complement of 2 notation and hexadecimal overlap for positive numbers) In order to make this fun, we allow any unicode characters in the string. A parser should remove all non hexadecimal characters treat the resulting as a hexadecimal representation of a number This will allow people to make an ascii - better yet a UTF-8 - picture of their public key when publishing it on the web. Cert hex is also a datatype property because we used to write it out like this [] a rsa:RSAPublicKey; rsa:public_exponent [ cert:hex "e1 dc d5 ..."] The above notation is now deprecated. Now we prefer the literal format below. [] a rsa:RSAPublicKey; rsa:public_exponent "e1 dc d5 ..."^^cert:hex .

AttributesValues
type
equivalentClass
comment
  • An encoding of a positive integer (from 0 to infinity) as a hexadecimal string that makes it easy to read and/or fun to present on the web. The purpose of this way of representing hexadecimals is to enable users to copy and paste hexadecimal notations as shown by most browsers, keychains or tools such as opensso, into their rdf representation of choice. There are a wide variety of ways in which such strings can be presented. One finds the following: e1 dc d5 e1 00 8f 21 5e d5 cc 7c 7e c4 9c ad 86 64 aa dc 29 f2 8d d9 56 7f 31 b6 bd 1b fd b8 ee 51 0d 3c 84 59 a2 45 d2 13 59 2a 14 82 1a 0f 6e d3 d1 4a 2d a9 4c 7e db 90 07 fc f1 8d a3 8e 38 25 21 0a 32 c1 95 31 3c ba 56 cc 17 45 87 e1 eb fd 9f 0f 82 16 67 9f 67 fa 91 e4 0d 55 4e 52 c0 66 64 2f fe 98 8f ae f8 96 21 5e ea 38 9e 5c 4f 27 e2 48 ca ca f2 90 23 ad 99 4b cc 38 32 6d bf Or the same as the above, with ':' instead of spaces. We can't guarantee that these are the only ways such tools will present hexadecimals, so we are very lax. The letters can be uppercase or lowercase, or mixed. Some strings may start with initial 00's, and can be stripped in this notation as they often are. Doing this could, in complement of 2 notation turn a positive number into a negative one, if the first hexadecimal character happens to be one of the set {'8', '9', 'a', 'A', 'b', 'B', 'c', 'C', 'd', 'D', 'e', 'E', 'f', 'F'} . As we interpret this string as a hexadecimal number leading 00s are not important (Complement of 2 notation and hexadecimal overlap for positive numbers) In order to make this fun, we allow any unicode characters in the string. A parser should remove all non hexadecimal characters treat the resulting as a hexadecimal representation of a number This will allow people to make an ascii - better yet a UTF-8 - picture of their public key when publishing it on the web. Cert hex is also a datatype property because we used to write it out like this [] a rsa:RSAPublicKey; rsa:public_exponent [ cert:hex "e1 dc d5 ..."] The above notation is now deprecated. Now we prefer the literal format below. [] a rsa:RSAPublicKey; rsa:public_exponent "e1 dc d5 ..."^^cert:hex .
isDefinedBy
label
  • hexadecimal
seeAlso
described by
editorial note
  • This relation should slowly be transited to just being a datatype.

    Being a datatype and a property is legal as explained here on the semantic web mailing list in March 2010. But it may be somewhat confusing, especially if it goes against a pattern - still to be set - by the xsd datatypes as the follow up email makes clear.

term status
  • archaic
is range of
is topic of
is about of
Faceted Search & Find service v1.17_git38 as of Aug 05 2019


Alternative Linked Data Documents: ODE     Content Formats:       RDF       ODATA       Microdata      About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.01.3307 as of May 21 2018, on Linux (x86_64-redhat-linux-gnu-ANALYTICS), Single-Server Edition (7 GB total memory)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2019 OpenLink Software