Proofivy vs SigmaNote

Secure your IP, copyright, and ideas with irrefutable, timestamped proof. Optionally earn by minting a NFT or publishing your text behind a x402 stablecoin (USDC) paywall. Who it's for: • Creators & Artists: Protect your original work with tamper-proof timestamps that establish your ownership before sharing with the world • Writers & Content Creators: Publish your text content on x402 and earn USDC while maintaining blockchain-verified proof of authorship • Innovators & Entrepreneurs: Secure your ideas with cryptographic proof that can serve as foundation for patents and commercialization • Scientists & Researchers: Document discoveries and experiments with verifiable timestamps that can't be altered or disputed • Photographers: Establish authentic ownership of your images with digital seals Key Features: • Irrefutable Proof: Generate cryptographic Content Identifiers (CIDs) that uniquely represent your digital assets • 100% Privacy: Only fingerprints of your content are shared, your actual files remain private and secure • No Crypto Wallet Required: Commit your content identifiers directly to the blockchain without technical crypto knowledge • Blockchain Verification: Utilize the security of blockchains for permanent, tamper-proof records • Optional x402 Publishing: Publish your text content and earn USDC payments on Base mainnet through the x402 protocol • Optional NFT Minting: For web3 users, convert your commits into tradable NFTs on Optimism mainnet Proofivy is trusted by scientists, writers, artists, and developers worldwide. Proofivy is a member of the Content Authenticity Initiative (CAI), smart contracts are deployed on Optimism mainnet.

SigmaNote — AI-Powered Knowledge Hub SigmaNote lets you build your own AI-powered knowledge hub — a single place to capture, manage, learn from, and create knowledge. It goes beyond notes or chat. SigmaNote gives you AI agents that work with your knowledge, across every format. Capture Knowledge from Anywhere Bring knowledge into SigmaNote from any source: • Notes and markdown documents • PDFs, files, and document scans • Images with OCR • Web pages and web archives • YouTube videos (with or without subtitles) • Voice recordings and system audio • Real-time, multi-language transcripts No format limits. Everything becomes searchable and usable. AI Agents That Organize for You SigmaNote’s AI agents help you: • Find relevant knowledge instantly • Organize content into the right Spaces • Connect related ideas across files and formats • Reduce clutter as your knowledge grows Your knowledge hub stays structured — without manual effort. Learn by Listening, Reading, and Conversation Knowledge shouldn’t just sit there. With SigmaNote, AI agents can: • Proactively read or speak knowledge to you • Explain complex topics in simple terms • Answer questions grounded in your materials • Help you think through ideas step by step It’s like discussing your knowledge with a personal tutor or teammate. Talk to Write. Build New Knowledge. SigmaNote introduces voice-driven AI writing. You can talk to an AI agent to: • Write new documents • Edit and update markdown files • Refine ideas through conversation • Create knowledge using your entire hub or a selected document This turns thinking out loud into structured writing — powered by everything you’ve learned. From Capture to Creation SigmaNote supports the full knowledge lifecycle: • Capture information • Understand it with AI • Absorb it through reading and listening • Create new knowledge by talking and writing All in one personal system. Who It’s For Students, researchers, founders, consultants, lawyers, clinicians, creators — anyone who wants to own their knowledge and build with it. Why SigmaNote • One hub for all knowledge formats • AI agents grounded in your data • Learn by conversation, not just reading • Turn knowledge into output Legal Term of services & privacy policy: https://www.signifyid.com/terms/view.html?doc=privacy_policy https://www.signifyid.com/terms/view.html?doc=term_of_service