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 51 through 60 (Total entries: 1469)

Hash:

Tyrone

Signature:

Power Bars Are Just Expensive Candy Bars 제주마사지

Thursday, November 07 2024 - 04:52 PM

Hash:

Alysa

Signature:

Triangle Billiaards & Barr Stools
1471 Nisson Ꮢd, Tustin,
ⅭA 92780, United Ⴝtates
+17147715380
Shuffleboard Table Refinishing Booking

Thursday, November 07 2024 - 01:14 PM

Hash:

Chanel

Signature:

led strip lights，led strips，LED Tape Lights，strip lightsADLED Light Limited is
a high-tech enterprise specializing in linear lighting and LED signs solutions,
integrating R&D, production, sales and service for 13 years.Our major
products include LED Strip Lights, LED Neon Lights, LED Profiles, LED Module Lights, LED
Bar Lights, LED Power Supply, LED Controller and LED Connector.
We are confident in professional lighting solutions especially for you
with long-term business relationships.

Wednesday, November 06 2024 - 05:44 PM

Hash:

Kristy

Signature:

Review Belonging To The Sanyo Hec-Dr7700k Massage Chair Recliner 제주스웨디시 (xintangtc.com)

Tuesday, November 05 2024 - 04:08 PM

Hash:

Justine

Signature:

This blog is always a jewel! It's precious.
general contracting

Tuesday, November 05 2024 - 04:18 AM

Hash:

Aleida

Signature:

This post is jam-packed with gems. It's so dope!
home reconstruction

Monday, November 04 2024 - 07:51 PM

Hash:

Salvatore Ybarro

Signature:

Der präzise Golfschwung ist der Schlüssel zu einem erfolgreichen Spiel.

Monday, November 04 2024 - 01:12 PM

Hash:

Jared Batey

Signature:

African-American literature has long been a powerful force in shaping contemporary perspectives and narratives. This vibrant literary tradition doesn't just portray the historical challenges and achievements of African-Americans but also influences contemporary discourse on race, identity, and social justice. In this article, we will delve into how African-American literature has influenced current perspectives, providing insights into its historical context, key authors, and lasting impact on the modern literary and cultural landscape.

Monday, November 04 2024 - 12:21 PM

Hash:

Annemarie Jangula

Signature:

Dance in Africa is a celebration of life. With its dynamic history and varied movements, it offers a distinct way to express oneself and engage with others. Whether you're a learner or a experienced dancer, understanding the principles of African dance can elevate your execution and understanding for this cultural expression. In this guide, we'll discover essential African dance moves that everyone should know, providing you with the tools to enchant audiences and immerse yourself in the vibrant rhythm of Africa.

Monday, November 04 2024 - 12:07 PM

Hash:

Jill Lindert

Signature:

African Donuts. Discover your comprehensive tutorial to perfecting the art of African doughnuts! If you're a culinary enthusiast, a gastronomy lover, or a café owner hoping to bring a fresh offering to your selections, understanding how to make these fluffy treats is a culinary skill worth acquiring. In this guide, we'll delve into the methods and insights that make African doughnuts irresistibly fluffy, while also offering useful advice and guidance based on expertise and professional tips.

Monday, November 04 2024 - 11:49 AM