Hash

Hash, hashes, hash mark, or hashing may refer to:

Substances

• Hash (food), a coarse mixture of ingredients, often based on minced meat
• Hash (stew), a pork and onion-based gravy found in South Carolina
• Hash, a nickname for hashish, a cannabis product

Marks and symbols

• Checkmate symbol in chess
• Hash mark (sports), a marking on hockey rinks and gridiron football fields
• Hatch marks, hash marks or tick marks, a form of mathematical notation
• Number sign (#), also known as the hash, hash mark, or (in American English) pound sign
• Service stripe, a military and paramilitary decoration
• Tally mark, a counting notation

Computing

• Geohash, a spatial data structure which subdivides space into buckets of grid shape
• hash (Unix), an operating system command
• Hash chain, a method of producing many one-time keys from a single key or password
• Hash function, an encoding of data into a small, fixed size; used in hash tables and cryptography
  • Cryptographic hash function, a hash function used to authenticate message integrity
• Hash table, a data structure using hash functions
• Hashtag, a form of metadata often used on social networking websites
• URI fragment, in computer hypertext, a string of characters that refers to a subordinate resource
• Zobrist hashing, a method of hashing chess positions into a key

Other uses

• Fossil hash, a rock composed primarily of fragmented fossils
• Hash (EP) ([#]), a 2020 EP by Loona

See also

• Hachis parmentier, a name for shepherd's pie
• Hash browns
• Hash House (disambiguation)
• Hashtag (disambiguation)
• Hatching, graphic procedure and pattern
• All pages with titles beginning with HASH
• All pages with titles beginning with Hash
• All pages with titles containing H.A.S.H.
• All pages with titles containing Hash