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 1 through 10 (Total entries: 1469)

Hash:

Katrin

Signature:

www.behance.net
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Saturday, January 25 2025 - 07:03 AM

Hash:

Henry Ringler

Signature:

Prepared to embark on an journey throughout The us? Search no more, as We have now compiled a list of fifty have to-see sites that may leave you in awe. From breathtaking purely natural landscapes to bustling towns, the United states has everything. Get ready to pack your bags and strike the street as we take you on a journey as a result of 50 wonderful places inside the United states of america.

Wednesday, January 22 2025 - 11:37 PM

Hash:

Bobbi Stuckman

Signature:

Willing to embark on an adventure across The us? Glimpse no additional, as we have compiled a summary of 50 ought to-see places that may depart you in awe. From gorgeous pure landscapes to bustling cities, the United states of america has it all. Prepare to pack your baggage and strike the highway as we just take you over a journey by way of fifty remarkable spots within the United states of america.

Wednesday, January 22 2025 - 11:26 PM

Hash:

Keshia Rocker

Signature:

Able to embark on an journey across The usa? Seem no further more, as we have compiled a summary of fifty will have to-see destinations which will depart you in awe. From breathtaking natural landscapes to bustling towns, the USA has all of it. Get ready to pack your luggage and hit the road as we consider you on the journey as a result of 50 remarkable areas inside the United states.

Wednesday, January 22 2025 - 11:15 PM

Hash:

Keshia Rocker

Signature:

Able to embark on an journey throughout America? Look no further, as We've got compiled a summary of 50 need to-see areas that may depart you in awe. From gorgeous organic landscapes to bustling metropolitan areas, the United states has all of it. Prepare to pack your bags and hit the street as we just take you with a journey by means of fifty astounding locations within the United states.

Wednesday, January 22 2025 - 10:59 PM

Hash:

Bobbi Stuckman

Signature:

Willing to embark on an journey throughout America? Search no additional, as Now we have compiled a list of fifty ought to-see locations that may depart you in awe. From beautiful natural landscapes to bustling metropolitan areas, the USA has it all. Get ready to pack your bags and hit the road as we consider you on the journey as a result of fifty astounding destinations from the United states of america.

Wednesday, January 22 2025 - 10:34 PM

Hash:

Natasha

Signature:

мега даркнет ссылки
Tanks

Friday, January 17 2025 - 03:13 AM

Hash:

Paulina

Signature:

www.deepbluedirectory.com
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Friday, January 03 2025 - 06:38 PM

Hash:

Brenton Bordon

Signature:

As summer is approaching, many folks are starting to plan their vacations and travel within the USA. If you're one of them, then I possess some exciting news for you. I have recently uploaded a movie on my YouTube channel titled "Must-See: 50 Amazing Places in the USA" and believe me, it will probably change your travel game completely.

Friday, January 03 2025 - 05:46 AM

Hash:

Chris Bresett

Signature:

As summer is approaching, many individuals are needs to plan their vacations and travel within the USA. If you are one of them, then I possess some exciting news for you. I've recently uploaded a video on my YouTube channel titled "Must-See: 50 Amazing Places in the USA" and trust me, it is going to change your travel game completely.

Thursday, January 02 2025 - 05:29 AM