Prior Art: Signed Hash Database

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 761 through 770 (Total entries: 1730)

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Angele Bossert

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Are you single and looking for your dream partner? If yes, then there's no better place on the internet than LinkUpCupid.com. LinkUpCupid this can be a 100% free online dating website that helps singles find true love and companionship.

Sunday, September 17 2023 - 10:35 AM

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Asia Choates

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Emily Morris had all but given up on getting a meaningful relationship; she had tried various online personals sites, but her experiences were often full of tire-kicking and other people who just desired to play games. However at some point Emily stumbled across LinkUpCupid.com - a web-based dating site - and made a decision to gave it a try.

Sunday, September 17 2023 - 09:50 AM

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Fidel Loepp

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Introducing LinkUpCupid.com - Find Your Match Today!

Sunday, September 17 2023 - 05:34 AM

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Wilbur Hultman

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Are you currently ready to take your chance in your search for love? Now you can do it for free online at LinkUpCupid.com. Our online match site is the perfect place to take a chance and find the best person. With our easy to operate design, you'll be able to find a compatible partner with the help of our advanced search functions and smart matching system.

Sunday, September 17 2023 - 04:18 AM

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Rolando Evertsen

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Searching for love, but don't have enough time, energy, or patience to spend countless nights at bars or swiping endlessly through dating apps? In that case, then the free online dating website LinkUpCupid.com might just be excellent solution simpler for you!

Sunday, September 17 2023 - 01:47 AM

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Reyes Hesterman

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Searching for the Right Match Just Got Easier With LinkUpCupid.com

Sunday, September 17 2023 - 01:02 AM

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Sidney Tucholski

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Do you ever want's impossible to find an enduring love connection? Has your search for your ideal companion turn into a never-ending endeavor? Fortunate for you, LinkUpCupid.com is here to help!

Saturday, September 16 2023 - 11:52 PM

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Abel Carp

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When you're in search of your perfect match, there's no need to accept anything less. That's why more and more people are turning to LinkUpCupid.com for his or her online dating needs. LinkUpCupid.com is the hottest new free online dating website; all you need to get started is sign up and start swiping!

Saturday, September 16 2023 - 10:41 PM

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Alma Schellermann

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Searching for love? In that case, LinkUpCupid.com is here to meet all your dating needs. Our free online dating website is the perfect way to find your someone special.

Saturday, September 16 2023 - 09:24 PM

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Sean Cosby

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Searching for love? In that case, LinkUpCupid.com is here to satisfy all your dating needs. Our free online dating website is a wonderful way to seek out your someone special.

Saturday, September 16 2023 - 08:44 PM