OpenTimestamps

OpenTimestamps is a technology that securely proves the existence of a digital file or document at a specific point in time. It works by creating a cryptographic timestamp, which is like a digital receipt that confirms when a file was created or last modified. This timestamp is registered on the Bitcoin blockchain, a public and tamper-proof ledger, ensuring its immutability and trustworthiness without revealing the actual content. OpenTimestamps provides a simple way to guarantee the authenticity and timing of digital records, useful for legal, financial, or archival purposes.