by Stampd

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What problem does this service solve?

Stampd is a blockchain-based online notary service that certifies the existence and authorship of digital files to one of four blockchains.

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About Stampd

Stampd uses the immutability of blokchain platforms to allow users to prove authorship and ownership of a digital file. Users can upload a file to their platform and have it validated and timestamped on to either the Bitcoin, Ethereum, Bitcoin Cash, or Dash blockchains. This is done by adding a unique identifier to a transaction that is generated from the file uploaded.
Stampd offers an API integration as well as a web portal.

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