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 1 through 10 (Total entries: 195)

Hash:
Ashly
Signature:
I absolutely love your website.. Gredat colors & theme.
Did you create this web site yourself? Please reply back as I'm planning to create my own personal website and would like to
find out where you got this from or exactly
what the themme iis named. Kudos!
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Wednesday, October 28 2020 - 11:03 AM
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Naomi
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I’m not that much of a internet reader to be honest but your sites really nice, keep it up!

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Monday, October 26 2020 - 04:53 PM
Hash:
Delores
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Highly descriptive article, I loved tha bit. Will tere be a paet 2?

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Saturday, October 24 2020 - 02:14 PM
Hash:
Buck
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Regards, I value it!
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Thursday, October 22 2020 - 07:51 AM
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Latanya
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Point clearly used!!
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Wednesday, October 21 2020 - 03:58 AM
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Tania
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Many thanks. I like this.
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Wednesday, October 21 2020 - 03:57 AM
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Adriana
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Wonderful write ups With thanks!
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Wednesday, October 21 2020 - 03:56 AM
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Harriet
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Whoa plenty of great info.
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Tuesday, October 20 2020 - 06:41 PM
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Kellie
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Great info, Thanks a lot!
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Tuesday, October 20 2020 - 05:48 PM
Hash:
Guillermo
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Tuesday, October 20 2020 - 04:37 AM
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