Definition ∞ A TCP packet timestamp is a field within the Transmission Control Protocol header that records the time at which a packet was sent. This timestamp allows for more accurate round-trip time measurements and helps in the detection of duplicate packets or out-of-order delivery. It is primarily used to improve network performance and reliability. The timestamp assists in managing the flow and congestion of data across a network.
Context ∞ While not directly a crypto-specific term, TCP packet timestamps can be relevant in network layer privacy discussions for blockchain nodes or in network traffic analysis for security incidents. News related to network forensics might mention how these timestamps are used to reconstruct communication sequences during an investigation of a blockchain attack. Their presence can sometimes be exploited in timing attacks to infer information about network participants.
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