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 61 through 70 (Total entries: 470)

Hash:
Tesha
Signature:
علی جباری
خیابان سوم غربی
021-4769821
سایت توتو اینترنتی [taktik4.website]
Tuesday, November 02 2021 - 01:24 PM
Hash:
Halina
Signature:
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Tuesday, November 02 2021 - 04:56 AM
Hash:
Morris
Signature:
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Monday, November 01 2021 - 11:57 AM
Hash:
Bertie
Signature:
حمید رضایی
اصفحان دروازه شیراز خیابان 12 غربی
032-5938723
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Sunday, October 31 2021 - 01:17 PM
Hash:
Novella
Signature:
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Saturday, October 30 2021 - 10:59 PM
Hash:
Edwina
Signature:
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И конечно только лишь на Этом вебсайте как ни крути, я её выискал. Собираюсь промолвить превеликое спасибо создателюнастоящегосайта. Далее, вероятно кому-то приглянется и еще моя интернет страница Сатиновый натяжной потолок цена кривой рог .
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Wednesday, October 27 2021 - 04:52 AM
Hash:
Claudia
Signature:
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Monday, October 25 2021 - 08:57 PM
Hash:
Larhonda
Signature:
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Monday, October 25 2021 - 06:37 AM
Hash:
Maryjo
Signature:
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Sunday, October 24 2021 - 02:48 PM
Hash:
Ellen
Signature:
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Sunday, October 24 2021 - 03:39 AM
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