[Patentpractice] reliable way to compare SHA-512 strings from Patent Center?

[Rick Neifeld]

HashTool, a free MS software standalone dones this just fine.  Set it to
SHA-5123, as shown below.

[image: image.png]



On Fri, Dec 13, 2024 at 2:59 AM William Ahmed via Patentpractice <
patentpractice at oppedahl-lists.com> wrote:

> Dear List,
>
> BACKGROUND (The Old Days -- EFS Web)
>
> Until 2023, we always submitted filings via EFS web. EFS web provided the
> BYTE COUNT upon filing.
>
> This was great and important.
>
> If 3 years later, when filing the figures for a continuation application,
> I wanted to make 100% sure that I was re-filing the *exact same pdf file *(instead
> of another version with the same file-name),
> I would check the byte count (usually using an MS-DOS window - yeah, I am
> over 50 years old) to make sure.
>
>
> PATENT CENTER (I need the same functionality that I used to have)
>
> Now we live in the world of SHA-512 - Patent Center gives SHA-512 rather
> than bye count.
> 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.
>
> I am embarrassed to say that I TRIED and I  FAILED
>
> In Jan 2024, a US provisional was filed -- the drawings file
> (USProvfiguresJan2024.pdf had a SHA-512 value of "abcdefg".
> I now downloaded and installed a free "Digital Volcano Hash tool" -- I
> gave it USProvfiguresJan2024.pdf and asked for the
> SHA-512 string.
> The 'SHA-512' hash strings did NOT match.
>
>
> What am I doing wrong?
>
> Thanks,
> Bill
> --
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> Patentpractice at oppedahl-lists.com
>
> http://oppedahl-lists.com/mailman/listinfo/patentpractice_oppedahl-lists.com
>


-- 
Best regards
Rick Neifeld, J.D., Ph.D.
Neifeld IP Law PLLC
9112 Shearman Street, Fairfax VA 22032
Mobile: 7034470727
Email: RichardNeifeld at gmail.com;
This is NOT  a confidential and privileged communication.  If you are not
the intended recipient, please delete this email and notify the sender you
have done so.
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