Best proof of work AI tools

Sapien is an innovative writing editor that captures your unique creative process to generate verifiable proof that your work is genuinely human-authored, not AI-generated. It tracks typing patterns, rhythms, and revisions in real-time, creating an unforgeable cryptographic fingerprint to ensure authenticity and academic integrity.

kOS by Helper Systems is an AI-powered research application for macOS designed to enhance PDF analysis, ensure academic integrity, and streamline the research workflow. It allows users to create searchable PDF databases, interact with an AI assistant, and generate a 'proof of work' to validate their research process, bridging the gap between using AI tools and maintaining academic honesty.