Show HN: Let's Seal – Let's Encrypt for document signing, free and self-hosted
Summary
Let's Seal provides a free, open-source platform for sealing documents using an open SEAL standard. It offers hosted, API/CLI, and self-hosted options for signing and verifying diverse file types with cryptographic guarantees, time anchoring, and a public transparency log. The article outlines use cases, architecture, and developer resources for integration.