copyright contract-law
making a contract that includes video licence
<p>The best way to sign a contract online with international signers is to go with DocuSign or Adobe Sign being the witness to the contract signing.</p>

<p>if the contract is about granting licence for a video, than the video must be referenced unambiguously within the contract. And this is where the problems arise.</p>

<p>Unfortunately, electronic signature providers do not offer functionality of placing videos inside the contract. They do not offer anything, but the most simple text documents and images. basically, if it can't be printed, you can't place it in the contract. That includes zip files.</p>

<p>How do you make a contract including video license permission then? Adding a link of the video is a terrible idea, because web is dynamic, and the content to which the video is pointing may easily change over time.</p>

<p>If you are concerned with a digital thing being verifiable as exactly the same at some later time you ought to use a <a href="https://en.wikipedia.org/wiki/Cryptographic_hash_function" rel="nofollow noreferrer">hash</a>.</p>

<p>A hash function takes some input bits like say a digital video and produces output bits often represented as hexadecimals. For any particular input it will always have the same output, but it is not reasonable for more than one input to have the same output. </p>

<p>All modern computers have standard software to do this and I'm sure many websites offer it as a free service.</p>

<p>Describe the video in the contract. Put the video in a GitHub (or similar) repository and link to that.</p>
