Hash, hashes, hash mark, or hashing may refer to:
Substances
*
Hash (food), a coarse mixture of ingredients
* Hash, a nickname for
hashish
Hashish ( ar, حشيش, ()), also known as hash, "dry herb, hay" is a drug made by compressing and processing parts of the cannabis plant, typically focusing on flowering buds (female flowers) containing the most trichomes. European Monitorin ...
, a cannabis product
Hash mark
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Hash mark (sports)
In sports, a hash mark or hash line is a short line/bar marking that is painted perpendicular to the sidelines or side barricades, used to help referees and players recognize on-field locations and visually measure distances. Hash marks serve th ...
, a marking on hockey rinks and gridiron football fields
*
Hatch mark, a form of mathematical notation
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Number sign (#), also known as the hash, hash mark, or (in American English) pound sign
*
Service stripe, a military and paramilitary decoration
*
Tally mark
Tally marks, also called hash marks, are a unary numeral system ( arguably).
They are a form of numeral used for counting. They are most useful in counting or tallying ongoing results, such as the score in a game or sport, as no intermediate r ...
, a counting notation
Computing
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Hash function, an encoding of data into a small, fixed size; used in hash tables and cryptography
*
Hash table, a data structure using hash functions
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Cryptographic hash function
A cryptographic hash function (CHF) is a hash algorithm (a map of an arbitrary binary string to a binary string with fixed size of n bits) that has special properties desirable for cryptography:
* the probability of a particular n-bit output re ...
, a hash function used to authenticate message integrity
*
URI fragment, in computer hypertext, a string of characters that refers to a subordinate resource
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Geohash, a spatial data structure which subdivides space into buckets of grid shape
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Hashtag
A hashtag is a metadata tag that is prefaced by the hash (also known as pound or octothorpe) sign, ''#''. On social media, hashtags are used on microblogging and photo-sharing services such as Twitter or Instagram as a form of user-generated ...
, a form of metadata often used on social networking websites
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hash (Unix), an operating system command
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Hash chain, a method of producing many one-time keys from a single key or password
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Password hash
*
Zobrist hashing, a method of hashing chess positions into a key
*
Hashgraph, a
Distributed ledger technology.
Other uses
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Hash House Harriers, a running club
*
''Hash'' (EP) (''
'), a 2020 EP by Loona
See also
*
Hash browns
Hash browns, also spelled hashed browns, are a popular American and British breakfast food, consisting of finely chopped potatoes that have been fried until browned. Hash browns first started appearing on breakfast menus in New York City in t ...
*
Hash House (disambiguation)
Hash House may refer to:
*Hash House a go go, a restaurant chain
*Hash House Bikers, an international group of non-competitive bicycling, social clubs
*Hash House Harriers
The Hash House Harriers (HHH or H3) is an international group of non-c ...
*
*
{{Disambiguation