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 21 through 30 (Total entries: 292)

Hash:
Glory
Signature:
Incredibly informative look ahead to coming back.
My web site :: web page
Wednesday, May 12 2021 - 03:13 PM
Hash:
Jeffery
Signature:
ผลบอลสด
You've got one of the best online websites.
Wednesday, May 12 2021 - 04:06 AM
Hash:
Reuben
Signature:
Inspiring quest there. What occurred after?

Take care!
การพนันร้านพนัน
web page Parimatch การพนันฟุตบอล
Wednesday, May 12 2021 - 02:26 AM
Hash:
Berry
Signature:
รีวิวหนังใหม่เข้าโรง
Great looking website. Presume you did a whole lot of your own coding.
Tuesday, May 11 2021 - 08:42 PM
Hash:
Rae
Signature:
ผลบอลสด
Many thanks really valuable. Will share website with my buddies.
Tuesday, May 11 2021 - 04:50 PM
Hash:
Blanche
Signature:
รีวิวอนิเมะทั้งหมด
Many thanks really handy. Will share website with my good friends.
Tuesday, May 11 2021 - 12:53 AM
Hash:
Susannah
Signature:
รีวิวอนิเมะ รีวิวอนิเมะNetflix
Maintain the awesome work !! Lovin' it!
Monday, May 10 2021 - 05:35 PM
Hash:
Frieda
Signature:
Your information is very significant.
Also visit my website: web site
Monday, May 10 2021 - 08:44 AM
Hash:
Brian
Signature:
หนังสือพิมพ์กีฬา สปอร์ตพูล
I adore this site - its so usefull and helpfull.
Monday, May 10 2021 - 01:35 AM
Hash:
Krystal
Signature:
รีวิวคาสิโนออนไลน์
Surprisingly individual pleasant site. Tremendous details offered on couple of clicks.
Sunday, May 09 2021 - 10:18 AM
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