About: Last-Modified

This page provides a structured representation (serialized as HTML+RDFa) of the description of the entity denoted ("referred to") by the hyperlink that anchors the About: <Entity Label> text at the top.

The data is presented here in the form of a collection of Entity->Attribute->Value (EAV) or Subject->Predicate->Object (SPO) relations.

In conformance with core Web Architecture, the same description data may also be retrieved in a variety of other negotiable serialization formats, which currently include CSV, HTML+Microdata, (X)HTML+RDFa, N-Triples, Turtle, N3, RDF/JSON, JSON-LD, RDF/XML, Atom, and CXML.

Why is this page important?

This page and its neighbors provide 5-Star Linked Data URIs (Web Super Keys) for HTTP-accessible data. These URIs are powerful starting points for serendipitous data discovery using the Web's "follow your nose" pattern, as well as a key ingredient for SPARQL queries over HTTP, ODBC, JDBC, ADO.NET, OLE-DB, or XMLA connections.

A single link from this page can be the seed of a powerful Web traversal, en route to discovery and exploitation of unimagined insights, using existing tools such as browsers, spreadsheets, business intelligence and analytics packages, basic report writers, presentation generators, project management packages, and many others.

How can I discover more structured data like this?

A variety of discovery pointers are available to users and user agents (software programs) that include:

<link /> relations embedded within the <head /> section of each description page
"Link:" response headers included as part of HTTP response metadata.

Can I expose my own Web resources this way?

Yes! Simply include entries, based on the example below, in the <head/> section of your (X)HTML page, whether static or dynamically generated --

<link rel="related"
    title="My Data in Linked Data form"
    href="http://linkeddata.uriburner.com/about/id/<scheme-part-of-url>/<host-part-of-url>/<path-part-of-url>"
    />

The scheme part is the first bit of a URI, up to but not including the first colon (":"). The host part includes the port, if any, and is found between the double solidus ("//") following the first colon, and the first solidus ("/") thereafter. The path part is everything thereafter (possibly including a query part or fragment identifier part).

For example, if your original page were at --

http://en.wikipedia.org/wiki/Linked_Data

-- the scheme part is "http", the host part is "en.wikipedia.org", and the path part is "wiki/Linked_Data". You could therefore provide access to a Linked Data graph rendition by including a <head/> entry like this --

<link
    rel="related"
    title="Linked data - Wikipedia, the free encyclopedia - in Linked Data form"
    href="http://linkeddata.uriburner.com/about/id/http/en.wikipedia.org/wiki/Linked_Data"
    />

Additional Information

URIBurner.com -- a live service that produces pages like this
OpenLink Data Explorer (ODE) -- a browser plug-in that enables you to browse and bookmark Linked Data pages via additions to the browser menus, both main and contextual
- ODE usage examples

Sponging disallowed (Read-only view)

The Last-Modified header (see RFC 2616, section 14.29)

% meta-cartridges called:

Meta-cartridge [execution time]:

Subject of Relation
Object of Relation

Property	Value
type	Thinghttp://www.w3.org/2002/07/owl#Thing
comment	The Last-Modified header (see RFC 2616, section 14.29) (en)
label	Last-Modified (en)
described by	proxy:entity/http/www.w3.org/2006/http-headerhttp://ods-qa.openlinksw.com:8896/about/id/entity/http/www.w3.org/2006/http-header http://ods-qa.openlinksw.com/about/id/entity/http/www.w3.org/2006/http-headerhttp://ods-qa.openlinksw.com/about/id/entity/http/www.w3.org/2006/http-header

Property	Value
first	nodeID://b777055nodeID://b777055 nodeID://b777188nodeID://b777188 nodeID://b777321nodeID://b777321 nodeID://b777454nodeID://b777454 nodeID://b797268nodeID://b797268 nodeID://b797401nodeID://b797401 nodeID://b797534nodeID://b797534 nodeID://b797667nodeID://b797667 nodeID://b827759nodeID://b827759 nodeID://b827892nodeID://b827892 nodeID://b828025nodeID://b828025 nodeID://b828158nodeID://b828158 nodeID://b912277nodeID://b912277 nodeID://b912410nodeID://b912410 nodeID://b913017nodeID://b913017 nodeID://b913150nodeID://b913150 nodeID://b920318nodeID://b920318 nodeID://b920451nodeID://b920451 nodeID://b981489nodeID://b981489 nodeID://b981622nodeID://b981622 nodeID://b982298nodeID://b982298 nodeID://b982431nodeID://b982431 nodeID://b1045991nodeID://b1045991 nodeID://b1144467nodeID://b1144467 nodeID://b1156685nodeID://b1156685 nodeID://b1156818nodeID://b1156818 nodeID://b1160130nodeID://b1160130 nodeID://b1160263nodeID://b1160263 nodeID://b1226870nodeID://b1226870 nodeID://b1227003nodeID://b1227003 nodeID://b1278344nodeID://b1278344 nodeID://b1278553nodeID://b1278553 nodeID://b1305545nodeID://b1305545 nodeID://b1354645nodeID://b1354645 nodeID://b1354780nodeID://b1354780 nodeID://b1365264nodeID://b1365264 nodeID://b1365397nodeID://b1365397 nodeID://b1378541nodeID://b1378541 nodeID://b1378675nodeID://b1378675 nodeID://b1385075nodeID://b1385075 nodeID://b1385208nodeID://b1385208 nodeID://b1469236nodeID://b1469236 nodeID://b1480370nodeID://b1480370 nodeID://b1556451nodeID://b1556451 nodeID://b1556621nodeID://b1556621 nodeID://b1580627nodeID://b1580627 nodeID://b1580760nodeID://b1580760 nodeID://b1597410nodeID://b1597410 nodeID://b1597543nodeID://b1597543 nodeID://b1630930nodeID://b1630930 nodeID://b1631063nodeID://b1631063 nodeID://b1637462nodeID://b1637462 nodeID://b1637595nodeID://b1637595 nodeID://b1687361nodeID://b1687361 nodeID://b1687494nodeID://b1687494 nodeID://b1749716nodeID://b1749716 nodeID://b1749849nodeID://b1749849 nodeID://b1810654nodeID://b1810654 nodeID://b1872052nodeID://b1872052 nodeID://b1872185nodeID://b1872185 nodeID://b1873661nodeID://b1873661 nodeID://b1873794nodeID://b1873794
topic	http://www.w3.org/2006/http-headerhttp://www.w3.org/2006/http-header
about	proxy:entity/http/www.w3.org/2006/http-headerhttp://ods-qa.openlinksw.com:8896/about/id/entity/http/www.w3.org/2006/http-header