Prior Art: Signed Hash Database

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 751 through 760 (Total entries: 1730)

Hash:

Sean Cosby

Signature:

Searching for love? If so, LinkUpCupid.com is here to satisfy all your dating needs. Our online for free dating website is a wonderful way to seek out your someone special.

Sunday, September 17 2023 - 06:04 PM

Hash:

Sean Cosby

Signature:

Searching for love? In that case, LinkUpCupid.com is here to meet all your dating needs. Our free online dating website is the perfect way to seek out your someone special.

Sunday, September 17 2023 - 05:54 PM

Hash:

Rodney Selbert

Signature:

Whether you're single and ready to mingle, or seeking a serious relationship, LinkUpCupid.com is the perfect method to find your perfect match. LinkUpCupid this can be a online for free dating website that makes it simple to hook up with individuals that have similar interests, values, and lifestyle.

Sunday, September 17 2023 - 05:17 PM

Hash:

Kimberli Talley

Signature:

As larger numbers of people turn to online dating services to find love, LinkUpCupid.com emerges as a better and free option. This free online dating website is dedicated to helping singles choose the romantic relationship that they will've been searching for. LinkUpCupid.com has all the features necessary for a successful online dating experience.

Sunday, September 17 2023 - 04:43 PM

Hash:

Kimberli Talley

Signature:

As larger numbers of people turn to online dating services to seek out love, LinkUpCupid.com emerges as an innovative and free option. This free online dating website is commited to helping singles choose the connection that they've been searching for. LinkUpCupid.com has all all of the features necessary for a successful online dating experience.

Sunday, September 17 2023 - 04:39 PM

Hash:

Britt Malson

Signature:

Should you're feeling lonely or simply looking for a compatible companion, LinkUpCupid.com is the right dating destination for you! LinkUpCupid.com is a online for free dating website that promises to make the process of finding to start dating and building meaningful relationships easier increasingly enjoyable.

Sunday, September 17 2023 - 04:02 PM

Hash:

Britt Malson

Signature:

Should you're feeling lonely or just searching for a compatible companion, LinkUpCupid.com is the perfect dating place for you! LinkUpCupid.com is a free online dating website that promises help make the method of searching a date and building meaningful relationships easier and more enjoyable.

Sunday, September 17 2023 - 03:43 PM

Hash:

Jim Sano

Signature:

This is LinkUpCupid.com - the premier free online dating website for singles! At LinkUpCupid.com we put our members' needs first and provide a secure online dating experience. As one of the main online dating websites, LinkUpCupid.com is the perfect destination for singles looking for love and companionship.

Sunday, September 17 2023 - 03:12 PM

Hash:

Ana Mcnespey

Signature:

Finding Love on the Web

Sunday, September 17 2023 - 02:19 PM

Hash:

Leanora Peggs

Signature:

Are you able to find the right partner and start your love journey? Look no further beyond LinkUpCupid.com , the premier free online dating website. On our website, you can find a great match in just some clicks.

Sunday, September 17 2023 - 12:20 PM