This was part of COMURI.

Specification

HMformat is a XHTML based format where the relevant elements have id attributes. It must have a reasonable human presentation using CSS and with anchors (a).

HMformat is a combined human-machine format. Conceptually is similar to [[MICROFORMATS]].

It is recommended to code the data as key-value pairs, where:

Human readable format means that humans can read it and that it has mechanisms for web navigation, such as clickable anchor in a browser. Example: HTML.

Machine readable format means that it can be programatically processed. Example: XML, JSON.

Combined human-machine format means that it is both, human and machine readable. Example: XHTML-ID.

Formats for URI metadata structure Formats appropriate for the URI metadata structure. Combined human-machine formats should be preferred.

The URI metadata structure must be available in at least one human readable format and one machine readable format. The default format is XHTML-ID. The content should be as language neutral as possible.

Display example below 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
 <head>
  <title>Metadata</title>
  <link rel="stylesheet" href="metadata.css" type="text/css" media="all" />
 <head>
 <body id="comuri">

   <ul>
     <li><a   id="dc"      href="dc"></a></li>
     <li><a   id="version" href="ver"></a></li>
   <ul>

   <table>
     <tr>
       <td><a id="de,html" href="foo-lang-format"></a></td>
       <td><a id="de,xml"  href="foo-lang-format"></a></td>
       <td><a id="de,pdf"  href="foo-lang-format"></a></td>
     </tr>
     <tr>
       <td><a id="en,html" href="foo-lang-format"></a></td>
       <td><a id="en,xml"  href="foo-lang-format"></a></td>
       <td><a id="en,pdf"  href="foo-lang-format"></a></td>
     </tr>
     <tr>
       <td><a id="es,html" href="foo-lang-format"></a></td>
       <td><a id="es,xml"  href="foo-lang-format"></a></td>
       <td><a id="es,pdf"  href="foo-lang-format"></a></td>
     </tr>
   </table>

 </body>
</html>

/*
metadata.css
URI metadata
23 June 2014
M.T. Carrasco Benitez
*/

body {
  margin            : 1%                 ;
  border            : 1px solid #660000  ;
  padding           : 1%                 ;
  background-color  : #fffff3            ;
  font-family       : monospace          ;
  font-size         : 1.5em              ;
  color             : #000000            ;
}

a:before {
  content           : attr(id)           ;
}

ul {
 margin-left        : 5%                 ;
}

table {
 margin-left        : 7%                 ;
 padding            : 0.8%               ;   
 border-collapse    : collapse           ;   
}

th {
 border             : 1px solid #888888  ;
 padding            : 0.2em              ;   
 text-align         : center             ;
 font-size          : 1em                ;   
}

td {
 border             : 1px solid #888888  ;
 padding            : 0.2em              ;   
 text-align         : center             ;
 font-size          : 1em                ;   
}
/* +++ */