✍️ Make fingerprint
Create a unique fingerprint (SHA-256 hash) of your file and store it permanently on the Solana blockchain. No wallet or personal data required.
🔍 Check fingerprint
Check if your exact document or file existed at the moment of fingerprint (SHA-256 hash) creation. Get tamper-proof evidence that the exact document existed or that it was changed. Useful in legal, academic and business contexts.
🧠 Q&A with examples
A Q&A with real world examples of when blockchain fingerprints are legally useful and when they aren't. Some practical applications for professionals.
🧩 Q&A on how it works
A Q&A that explains how your file is fingerprinted, how the hash is stored on the Solana blockchain, why your data stays safe without uploading — and what it costs.