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 111 through 120 (Total entries: 883)

Hash:
Marissa
Signature:
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Friday, November 11 2022 - 03:26 AM
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Laurence
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Thursday, November 10 2022 - 11:04 PM
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Antonietta
Signature:
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Tuesday, November 08 2022 - 01:05 AM
Hash:
Phoebe
Signature:
Выявляем Ортопедический матрас.
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Очень важно, чтобы спина, конечности или шея не располагались в положении стеснения мягких тканей или принимали нагрузки из-за неправильной расположенности либо неравномерности давления на отдельные участки позвоночника исходящей от верхнего слоя опоры.

Обеспечить необходимые условия восстановления призваны ортопедические матрасы. Что за моменты выбора покупатели должны обратить внимание, изучайте в топике: :D Матрасы ортопедические в кривом роге цена
Friday, November 04 2022 - 09:43 AM
Hash:
Emanuel
Signature:
Make money trading opions.
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Friday, November 04 2022 - 01:04 AM
Hash:
Gilda
Signature:
Make money trading opions.
The minimum deposit is 50$.
Learn how to trade correctly. How to earn from $50 to $5000 a day.

The more you earn, the more profit we get.
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Thursday, November 03 2022 - 03:43 PM
Hash:
Angela Ball
Signature:
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Thursday, November 03 2022 - 01:48 AM
Hash:
Beverly
Signature:
Guess the exchange rate, bitcoin and get money.
Start with $10 and you can earn up to $1000 in a day, see how
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Tuesday, November 01 2022 - 07:55 AM
Hash:
Twila
Signature:
Sports betting. Bonus to the first deposit up to 500 euros.

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Sunday, October 30 2022 - 05:11 PM
Hash:
Bev
Signature:
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Friday, October 28 2022 - 02:13 AM
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