At my startup (https://assembl.net https://assembl.net) we use blockchain timestamping to provide an immutable timestamp of a researcher's data. This allows the

At my startup (https://assembl.net https://assembl.net) we use blockchain timestamping to provide an immutable timestamp of a researcher's data. This allows them to probably show they were the first to discover a certain idea, or work on a specific problem, without trusting a central party. You're welcome to try it out at https://app.assembl.net https://app.assembl.net. You'll see the blockchain involvement is quite minimal (no private keys, no cryptocurrency, etc.). The core feature, which is decentralized timestamping, necessitates a blockchain. Do you have an idea of how to do this without a blockchain? I'm all ears.