Question

What is a proof-of-existence?

Answer 1

Proof-of-existence is a method used to demonstrate that a certain piece of data or information existed at a specific point in time. It is often used in the context of blockchain technology to verify the existence of a document, file, or record without revealing its content. This can be useful for establishing ownership, copyright, or the authenticity of digital assets.

Answer 2

Proof-of-existence is a method used to prove that a certain piece of data or document existed at a specific point in time. It involves creating a cryptographic hash of the data or document and storing it in a public blockchain or timestamping service to provide immutable proof of its existence. This can be useful for verifying the authenticity and timestamp of important documents or information.