title: alphanumeric strings can be also URI or IRI?
body: <p>I have data with alphanumeric ids like 9625ea21a1bf1be22963576fcdfd863d.
  Can I say this is also an IRI (internationalized resource identifier) or URI value?</p>
  
  <p>All URI examples are like aaa.txt, aaa/bbb.html, or protocol://aaa/bbb.ext#tag. </p>