OpenSig

This digital signature solution enables users to securely sign, timestamp, and verify various types of files directly on their devices without requiring accounts, uploads, or complex workflows, ensuring privacy and permanence. It offers key features such as on-device signing, cryptographic proof of authorship, compatibility with all file formats, public verifiable records anchored to a blockchain ledger, and affordability with pay-as-you-go pricing, making it ideal for creators, entrepreneurs, legal professionals, researchers, and anyone needing to protect intellectual property and ensure the authenticity and provenance of digital content.

OpenSigは次の場所にあります Document Management & eSignature Tools カテゴリー。