Seal – Verifiable timestamp for your private ideas
Seal – Verifiable timestamp for your private ideas launched on June 6, 2022 with 113 votes, #280 of 3,005 launches that month and more than 90% of that year's launches.
In plain words
Seal is a tool that creates verifiable timestamps for private ideas and documents. Users can securely record their thoughts, creative work, or intellectual property with cryptographic proof of when they were created, without sharing the content publicly. The service is designed for anyone who wants to establish dated proof of ownership or creation for personal ideas before potential public release or collaboration.
written from the facts on this page · September 2026
Does a similar job
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Let's Seal – Let's Encrypt for document signing, free and self-hostedJul 2026 · github.com · ▲94TLDR, Let's Seal gives the finger to Adobe and every doc signing tool (docusign, google, etc) who pay to play with the Adobe Approved Trust List and then charge you for something that should be free. Currently even the person checking if a document/contract is sealed or code is authentic has to also be inside the same Adobe walled garden too. Verification, the part that should be free is the part everyone charges for. Thats the shape Let's Encrypt fixed for TLS, and I wanted the same thing for documents and files. The core idea therefore needed to go a bit beyond e signatures and i…
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