What is PSI-COMMIT?
PSI-COMMIT lets you seal a prediction or decision and prove you made it before the outcome — no third party required. Your message is locked with HMAC-SHA256 and a secret key that never leaves your browser. The commitment is anchored to Bitcoin via OpenTimestamps for a permanent, tamper-proof timestamp. Save yourpsc,stamp.txt, andots files and your proof is self-contained forever. Free, open source, MIT licensed.
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