]:[UNF hash]</code></pre>
<p>In UNFv5, the header might also contain details of other parameters for non-default number rounding and character string truncation, respectively:</p>
<pre><code>UNF:[UNF version]:[digits],[characters]:[UNF hash]</code></pre>
<p>In UNFv6, the header can contain a number rounding parameter (N), a string truncation parameter (X), and a variable-level UNF hash truncation parameter (H) (in any order):</p>
<pre><code>UNF:[UNF version]:N[digits],X[characters],H[bits]:[UNF hash]</code>