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<p>Thank you for posting. Yes this USPTO "message digest" is not an
easy thing to make sense of. See the following blog articles:<br>
</p>
<ul>
<li><a
href="https://blog.oppedahl.com/understanding-message-digests/">Understanding
\u201cmessage digests\u201d</a> dated July 29, 2020</li>
<li><a
href="https://blog.oppedahl.com/how-to-calculate-sha-512-hashes-in-microsoft-windows/">How
to calculate SHA-512 hashes in Microsoft Windows</a> dated
March 25, 2022</li>
<li><a
href="https://blog.oppedahl.com/patent-center-ack-receipt-from-uspto-does-not-tell-the-truth-about-what-i-e-filed/">Patent
Center Ack Receipt from USPTO does not tell the truth about
what I e-filed</a> dated November 8, 2024<br>
</li>
</ul>
<p>If these articles do not answer your questions fully, please let
me know.</p>
<p>Oh and FWIW, my go-to SHA-512 tool these days is <a
href="https://www.digitalvolcano.co.uk/hash.html">DigitalVolcano
Hash Tool</a> version 1.2. I'd guess this is the same tool you
were using.</p>
<p>Carl<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 12/13/2024 12:56 AM, William Ahmed
via Patentpractice wrote:<br>
</div>
<blockquote type="cite"
cite="mid:628027773.610.1734076560609@mail.yahoo.com">
<div class="yahoo-style-wrap">
<div dir="ltr" data-setdir="false">Dear List,</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">BACKGROUND (The Old Days --
EFS Web)</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">Until 2023, we always
submitted filings via EFS web. EFS web provided the BYTE COUNT
upon filing.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">This was great and important.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">If 3 years later, when filing
the figures for a continuation application, I wanted to make
100% sure that I was re-filing the <i>exact same pdf file </i>(instead
of another version with the same file-name),</div>
<div dir="ltr" data-setdir="false">I would check the byte count
(usually using an MS-DOS window - yeah, I am over 50 years
old) to make sure.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">PATENT CENTER (I need the
same functionality that I used to have)</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">Now we live in the world of
SHA-512 - Patent Center gives SHA-512 rather than bye count.</div>
<div dir="ltr" data-setdir="false">I want to do the same for
Patent center - I want the ability to take a pdf file on my
computer (e.g. 11 months after filing a US provisional), run
it through SHA-512 and reproduce the SAME SHA-512 string.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">I am embarrassed to say that
I TRIED and I FAILED</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">In Jan 2024, a US provisional
was filed -- the drawings file (USProvfiguresJan2024.pdf had a
SHA-512 value of "abcdefg".</div>
<div dir="ltr" data-setdir="false">I now downloaded and
installed a free "Digital Volcano Hash tool" -- I gave it
USProvfiguresJan2024.pdf and asked for the </div>
<div dir="ltr" data-setdir="false">SHA-512 string. </div>
<div dir="ltr" data-setdir="false">The 'SHA-512' hash strings
did NOT match.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">What am I doing wrong? </div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">Thanks,</div>
<div dir="ltr" data-setdir="false">Bill</div>
</div>
</blockquote>
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