![[OpenLink Software]](statics/openlinklogo_wstrap_2008.png)
Unable to retrieve data from "https://law.stackexchange.com/questions/27287/entering-the-us-with-an-expired-green-card": HTTP/1.1 403 Forbidden
What Is This?
This is an HTML+RDFa representation of metadata describing this Web-addressable resource.
Why Is This Important?
The property (attributes and values pairs) links on this page unveil a different kind of link, one which enables the following on HTTP networks such as the Web:
- Unambiguous identity for entities (aka. strong identifiers)
- Implicit binding of an entity and its metadata via strong identifiers
- Multiple metadata representations that enable a variety of presentations
- High precision Search and Find queries that simply use the metadata documents (by referencing entity URIs) as the query's Data Source Name
How Do I Discover Alternative Metadata Representations?
This document exposes metadata in the following formats: (X)HTML+RDFa, Turtle, N3, RDF/JSON, or RDF/XML. In the most basic form, you can simply view the (X)HTML source markup of this page, and go directly to the <head/> section which contains a <link/> tag with relationship and type properties for each format.
In addition, you can also explicitly request a desired metadata representation for a given resource via HTTP GET requests that use the entity's strong identifier as the call target.
How Can I Expose My Web Resources In This Manner?
Simply include the following in the <head/> section of your (static or dynamically generated) (X)HTML page:
<link rel="alternate" title="My Data in RDF Linked Data form"
type="application/rdf+xml"
href="http://linkeddata.uriburner.com/about/id/<this-page-URL>/>"
How Is This Related To The Linked Data Meme?
As stated above, the links in this page expose strong identifiers for its primary topic, secondary topics, attributes, and some values. These links, via implicit association, act as conduits to their metadata-bearing documents, in a variety formats.
