<node uri="vos://...../my-file">
<properties>
<property uri="ivo://..../owner">dave</property>
<property uri="ivo://..../file-size">219</property>
<property uri="ivo://..../modifed-date">2007-02-23</property>
</properties>
</node>
If I request an asynch transfer on this node, I get back the URI of another node.
<node uri="vos://...../xfer/51993">
<properties>
<property uri="ivo://..../owner">dave</property>
<property uri="ivo://..../target">vos://...../my-file</property>
<property uri="ivo://..../status">ACTIVE</property>
</properties>
</node>
The status node can be in a separate part of the tree, ../xfer, like /dev or /proc on a unix file system.
Or, it can be in a different space just for status nodes.
The [ivo://..../target] property tells you what node this transfer applies to.
A simple UI client can render this as
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