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In computing, timestamping refers to the use of an electronic timestamp to provide a temporal order among a set of events. Timestamping techniques are used in a variety of computing fields, from network management and computer security to concurrency control .
The idea of timestamping information is centuries old. For example, when Robert Hooke discovered Hooke's law in 1660, he did not want to publish it yet, but wanted to be able to claim priority. So he published the anagram ceiiinosssttuv and later published the translation ut tensio sic vis (Latin for "as is the extension, so is the force").
A timestamp is a sequence of characters or encoded information identifying when a certain event occurred, usually giving date and time of day, sometimes accurate to a small fraction of a second. Timestamps do not have to be based on some absolute notion of time, however.
Whenever a transaction initiated, it receives a timestamp. The transaction's timestamp indicates when the transaction was initiated. These timestamps ensure that transactions affect each object in the same sequence of their respective timestamps.
The Time-Stamp Protocol, or TSP is a cryptographic protocol for certifying timestamps using X.509 certificates and public key infrastructure.The timestamp is the signer's assertion that a piece of electronic data existed at or before a particular time.
The ANSI X9.95 standard for trusted timestamps expands on the widely used RFC 3161 - Internet X.509 Public Key Infrastructure Time-Stamp Protocol by adding data-level security requirements that can ensure data integrity against a reliable time source that is provable to any third party.
OpenTimestamps (OTS) is an open-source [2] project that aims to provide a standard format for blockchain timestamping. [3] With the advent of systems like Bitcoin, it is possible to create and verify proofs of existence of documents (timestamps) without relying on a trusted third party; this represents an enhancement in terms of security, since it excludes the possibility of a malicious (or ...
It is able to achieve improved precision on LAN connections, using hardware timestamping on the network adapter. [40] Support for Network Time Security (NTS) was added on version 4.0. [61] chrony is available under GNU General Public License version 2, was created by Richard Curnow in 1997 and is currently maintained by Miroslav Lichvar. [58]
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