article_id
The article_id tag is a single tag which returns the numeric ID of the article being displayed. This number will also be reflected as a part of the article permanent URL if it has been chosen as the Permanent link mode in the Basic Preferences tab.
Related: if_article_id
Hyperlinked to the article
<txp:permlink><txp:article_id /></txp:permlink>
Other tags used: permlink
Conditional use
This will only display the hyperlinked article ID when on an individual article page.
<txp:if_individual_article>
Article ID: <txp:permlink><txp:article_id /></txp:permlink>
</txp:if_individual_article>
Other tags used: if_individual_article, permlink