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WHATSTASK
Powered by Bitcoin & OpenTimestamps

IP Proof

Timestamp your creative work on the Bitcoin blockchain. Prove when you created something - your file never leaves your device.

Drop your file here

or click to browse. Your file stays on your device - only the fingerprint is stored.

Supports any file type. Maximum recommended size: 500MB

How It Works

Bitcoin Blockchain Security

Your proof is anchored to the most secure blockchain in existence.

Zero-Knowledge Privacy

Files never leave your device. Only the hash is stored.

Instant Registration

Create proofs in seconds. Bitcoin confirmation in 1-2 hours.

Globally Verifiable

Anyone can verify using the public Bitcoin blockchain.

Already have a proof?

Verify any file against our blockchain records

Go to Verification