lass="op">=</span><span class="va">format</span>, size<span class="op">=</span><span class="va">size</span>, checksum<span class="op">=</span><span class="va">sha256</span>,  seriesId<span class="op">=</span><span class="va">seriesId</span><span class="op">)</span></code></pre></div>
<p>A unique identifier must be specified for each system metadata, whether or not a seriesId is used.</p>
<p>The dataset can now be uploaded to DataONE with the associated system metadata:</p>
<div class="sourceCode" id="cb17">