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: 502)

Hash:
Ramona
Signature:
We happen to be professional wholesale dealer of jerseys, focused in supplying General Jerseys and personalized
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Sunday, January 23 2022 - 09:54 PM
Hash:
Otto
Signature:
We happen to be professional wholesale dealer of jerseys, focused in supplying Inexpensive Jerseys
and personalized jerseys. Jerseys along with 100% stitched real quality, all Quantities, Logos and Brands are sewn in and embroidered.


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Saturday, January 22 2022 - 03:03 PM
Hash:
Sondra
Signature:
We are professional wholesale distributor of jerseys, customized in supplying Inexpensive Jerseys and custom-made jerseys.
Jerseys along with 100% stitched authentic quality, all Quantities, Logos and Names
are sewn in and embroidered.
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Monday, January 17 2022 - 09:48 AM
Hash:
Merle
Signature:
Я лично несколько дней выискивал уведомление, какая постановит мои темы.
И только лишь на Этом блоге лично я её нашёл. Намереваюсь проговорить премногое спасибо авторуэтоговебсайта. К тому же, возможно кое-кому покажется и дополнительно моя страница Монтажник натяжных потолков кривой рог .

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Saturday, January 15 2022 - 01:45 PM
Hash:
Gita
Signature:
Laesosmed - Jasa Tambah Followers, Likes, Views, Instagram
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telegram: @laesosmed
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Friday, January 14 2022 - 07:04 AM
Hash:
Omer
Signature:
Yes! Finally someone writes about betflix.
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Friday, January 14 2022 - 01:01 AM
Hash:
Samira
Signature:
We are professional wholesale dealer of jerseys,
customized in supplying Low cost Jerseys and customized jerseys.
Jerseys along with 100% stitched real quality, all Numbers, Logos and Names are sewn in and embroidered.

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Wednesday, January 12 2022 - 02:08 PM
Hash:
Chase
Signature:
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Monday, January 10 2022 - 08:57 AM
Hash:
Winifred
Signature:
We are usually professional wholesale distributor of jerseys, specialized in supplying Inexpensive Jerseys and custom-made jerseys.

Jerseys along with 100% stitched real quality, all Amounts,
Logos and Labels are sewn in and embroidered.
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Friday, January 07 2022 - 05:57 AM
Hash:
Nichol
Signature:
Thank you so much! It is definitely an wonderful web page!


darmowy Zakład
Thursday, January 06 2022 - 02:11 PM
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