Prior Art: Signed Hash Database

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Anyone is free to post a hash, along with a signature. Use of this site is at your own risk, and I provide no guarantees as to its stability or fitness for purpose. To use this site, create a document containing your idea, and append at least 74 random characters. Create a hash using SHA-2. Sign using GPG. Then upload both the hash and the signature. If at some later point you need to prove when you wrote the intial file, you can use the signed hash here, together with the upload time stamp, to prove a bound on when you wrote it. Simples! Why 74 random bits? Well, just for your own piece of mind. 74 ASCII characters take more than 512 bits to represent (518 to be exact). If they are chosen uniformly at random there is no way to compress that part of the document below 518 bits, which is longer than a SHA-2 hash. Thus there is no way you could have been tricked into uploading a compressed version of your document.

Current Entries

Viewing entries 91 through 100 (Total entries: 683)

Hash:
Manuel
Signature:
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You managed to hit the nail upon the top as well as defined out the whole thing
wiithout having side effect , people could take a signal.

Will likely be back to get more. Thanks
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Sunday, April 10 2022 - 02:13 AM
Hash:
Tammy
Signature:
I have been browsing online more than 2 hours today, yet I neveer found any interesting
article like yours. It's pretty worth enough foor me.
In my view, if all site owners and bloggers made good content as yyou did,
the web will be much more useful than ever before.


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Saturday, April 09 2022 - 06:59 PM
Hash:
Dong
Signature:
You've got the most effective sites.
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Saturday, April 09 2022 - 05:10 PM
Hash:
Arianne
Signature:
I am regular reader, how are you everybody? This post posted at this weeb site is genuinely
good.
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Saturday, April 09 2022 - 02:28 AM
Hash:
Anthony
Signature:
Awesome Web site, Stick to the great job. Regards.
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Wednesday, April 06 2022 - 11:22 PM
Hash:
Zoe
Signature:
Hello There. I found your blog using msn. This is an extremely
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information. Thanks for thhe post. I will certaimly comeback.

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Saturday, April 02 2022 - 08:25 PM
Hash:
Delphia
Signature:
Truly instructive look forwards to coming back.
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Saturday, April 02 2022 - 10:16 AM
Hash:
John
Signature:
Hello would you mind stating which blog platform you're using?
I'm going to start my own blog soon but I'm having a
hard time making a decision between BlogEngine/Wordpress/B2evolution and Drupal.

The reason I ask is because ylur design aand style
seems different then most blogs and I'm looking for something unique.
P.S Sorry for being off-topic but I had to ask!
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Saturday, April 02 2022 - 10:02 AM
Hash:
Lurlene
Signature:
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Friday, April 01 2022 - 11:17 PM
Hash:
Johnie
Signature:
Great looking site. Assume you did a great deal of your very own html coding.

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Friday, April 01 2022 - 08:56 PM
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