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A numerical value calculated from a series of bits of digital data, often by summing their values, used to test whether the data has changed during storage or transmission.

check′sum′ v.


a digit representing the number of bits of information transmitted, attached to the end of a message in order to verify the integrity of data
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.checksum - a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage
confirmation, substantiation, verification, check - additional proof that something that was believed (some fact or hypothesis or theory) is correct; "fossils provided further confirmation of the evolutionary theory"
References in periodicals archive ?
With support for the next-generation Btrfs file system, RS2416+/RS2416RP+ offers metadata mirroring and checksums that guarantee a higher level of data availability and survivability.
Other possible solutions for preventing bit rot include open formats, platform diversification, checksums, microform, and greater research.
Finally, the whole system is analyzed in action, including extensions, client- and server-side compromises, day-to-day operations and the use of proxies and checksums.
From that point on, DNA Evolution automates the entire process - from identifying media files, to copying the files to LTO, computing checksums and also moving the media assets to a quarantine location.
Reliable data integrity is ensured by using checksums and acknowledgments and avoiding interference through its advanced hybrid frequency hopping scheme.
If the number of bytes received is equal with the one requested and if the two checksums are equal, then the communication has ended without any errors and a new reading can be initiated.
The integrity of the files can be verified by checking their MD5 checksums against the values posted at the bottom of the page.
Designed to support econometrics, the FDIC's electronic filing system puts out the cleanest (all the derived calculations and checksums loot) and most immediately useful bulk financial data in the world, far exceeding anything available from any commercial data vendor.
The data path demands of a storage system are additionally taxed by the demands of RAID parity generation for RAID-5 and RAID-6, and by computing data integrity checksums.
Red Hat, Caldera, Sun, IBM and SCO have since posted software fixes and checksums.
Backed by the Storwize DIA Data Integrity Assurance architecture, which combines several data integrity technologies, such as checksums to verify accuracy of each compressed block, ECC memory and proven lossless algorithms, Storwize offers the most comprehensive proactive support of any data compression solution provider, delivering compelling value to customers around the world.
Performance: Fast IO path, improved internal cooperation, and fast checksums.