====== Block Header ======
[[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]]

A **Block Header** is used to identify a particular block on an entire [[dido:public:ra:xapend:xapend.a_glossary:b:blockchain]] and is hashed repeatedly to create [[dido:public:ra:xapend:xapend.a_glossary:p:proof_of_work]] for [dido:public:ra:xapend:xapend.a_glossary:m:mining]] rewards. A blockchain consists of a series of various blocks that are used to store information related to transactions that occur on a blockchain network. Each of the blocks contains a unique header, and each such block is identified by its **block header** hash individually.  

Source: [[https://www.investopedia.com/terms/b/block-header-cryptocurrency.asp ]]


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