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 81 through 90 (Total entries: 845)

Hash:
Twila
Signature:
Sports betting. Bonus to the first deposit up to 500 euros.

sports betting
Sunday, October 30 2022 - 05:11 PM
Hash:
Bev
Signature:
Guess the exchange rate, bitcoin and get money.
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Friday, October 28 2022 - 02:13 AM
Hash:
Trent
Signature:
Guess the exchange rate, bitcoin and get money.
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Wednesday, October 26 2022 - 06:49 AM
Hash:
Marietta
Signature:
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Monday, October 24 2022 - 02:12 AM
Hash:
Larhonda
Signature:
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Sunday, October 23 2022 - 03:53 PM
Hash:
Jolie
Signature:
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Sunday, October 23 2022 - 08:04 AM
Hash:
Alan
Signature:
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Thursday, October 20 2022 - 02:33 AM
Hash:
Arlie
Signature:
Guess the exchange rate, bitcoin and get money.
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Friday, October 14 2022 - 07:28 AM
Hash:
Wiley
Signature:
Guess the exchange rate, bitcoin and get money.
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Sunday, October 09 2022 - 10:16 PM
Hash:
Evangeline
Signature:
Guess the exchange rate, bitcoin and get money. Start with $10 and you can earn up to $1000 in a day, see how Here
Sunday, October 09 2022 - 08:37 PM
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