source: osm/applications/editors/josm/plugins/trustosm/resources/trustXML.dtd@ 30197

<?xml version="1.0" encoding="UTF-8"?>
<!--DTD for XML Format to store PGPSignatures and OSM-Object references-->

<!-- ROOT-ELEMENT -->
<!ELEMENT trustcollection (trustitem)*>
<!ATTLIST trustcollection version CDATA #IMPLIED creator CDATA #IMPLIED >

<!-- A trustitem stores all signatures that are referenced to a specific OSM-Object -->
<!ELEMENT trustitem (signatures)*>
<!-- a trustitem needs the referenced OSM-ID and the API-Type of that OSM-Object to find it faster in the OSM-DB -->
<!ATTLIST trustitem 
osmid   CDATA   #REQUIRED
type    CDATA   #REQUIRED
>

<!-- signatures are available for simple tags or geometry objects -->
<!ELEMENT signatures (tags|geometry)*>

<!-- tags contain all signed keys with their signature -->
<!ELEMENT tags (key)*>

<!-- every different value for a specified key gets its own openpgp tag -->
<!ELEMENT key (openpgp)*>
<!ATTLIST key k CDATA #REQUIRED >

<!-- geometry contains all signed nodes with their signature -->
<!ELEMENT geometry (node)*>

<!-- every node gets its own openpgp tag -->
<!ELEMENT node (openpgp)*>
<!ATTLIST node id CDATA #REQUIRED >


<!-- the openpgp tag is a clearsigned OpenPGP message -->
<!ELEMENT openpgp (#PCDATA)*>