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 91 through 100 (Total entries: 1482)

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Adam
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Organic Optimization Optimization And Keyword Research Techniques 검색엔진최적화 seo
Saturday, October 26 2024 - 04:53 AM
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Federico Dimsdale
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John Barton MBA
Friday, October 25 2024 - 08:00 PM
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Leonardo
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How To Gold Bullion Online - Bars, Coins, Etfs And Exchanges 사상오피
Friday, October 25 2024 - 07:08 PM
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Tracey
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How Purchase A Bad Credit Car Loan Without The Anxiety 무직자 3000만원 대출
Friday, October 25 2024 - 07:49 AM
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Everette
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Website Development And Seo 백링크 대행
Thursday, October 24 2024 - 07:00 PM
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Elisha
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Nancy Lopez Golf Clubs - Great Choices For Ladies Golfers 광주유흥
Thursday, October 24 2024 - 05:22 PM
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Alexander Bertin
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Fort Worths only Advanced Rolfer & Rolf Movement Practitioner. Experience a Lifted Quality of Life. Corrective therapist since 1997 specializing in whole person wellness. Over 2000+ 10 Series completed. Join the revolution and get lifted into a new reality. Chiropractic, Physical Therapy, or Massage Therapy are not substitutes for an Advanced Rolfing Fort Worth Dallas Ten Series.
Tuesday, October 22 2024 - 08:36 AM
Hash:
Erwin
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Xperdt Foundation Repair
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Tuesday, October 22 2024 - 06:28 AM
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Taunya Prakoth
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Slavery in America that can easily be historical anchor that procedes form the socio-economic panorama of the nation. Its legacy is visible plentiful sides of American life, from systemic inequities to cultural expressions. In this blog delves throughout the intricate tradition of slavery, its profound financial and social implications, and the way its legacy endures in at this time's society.
Sunday, October 20 2024 - 07:22 AM
Hash:
Shelley
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How Things Money Online - 5 Figure Income Online Fast In 45 Days jusojula
Sunday, October 20 2024 - 12:34 AM
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