Definition ∞ A Verifiable Timestamp is a cryptographic proof that certifies the existence of specific data at a particular point in time. It is generated using secure hashing algorithms and often embedded within a blockchain, making it tamper-evident and immutable. This mechanism provides an unalterable record, confirming when a digital event or document was created or recorded.
Context ∞ Verifiable Timestamps are fundamental to the integrity of transactions and data records on blockchains, frequently mentioned in discussions about digital asset security and authenticity. They are crucial for establishing the chronological order of events without reliance on a centralized authority, preventing retroactive alteration of data. News often highlights their application in legal contexts, intellectual property, and supply chain management for irrefutable proof of existence.
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