Claimby

Free legally-valid timestamps for your files, ideas & art.

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Claimby is a free timestamping service for ideas, art, files, or any other type of intellectual property. It is backed by the Ethereum blockchain. Simply choose a file and it will be hashed using a secure SHA-3 algorithm, and it's unique hash written to the blockchain (nothing is uploaded). This hash + blockchain transaction serve as your proof!

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