Main Chain

A portion of the blockchain which a node considers the most difficult. All nodes store all valid blocks, including orphans, and re-compute the total difficulty when receiving another block. If the newly arrived block or blocks do not extend the existing main chain but create another one from some previous block, it is called a reorganization.


Malone, J.A (2015). Glossary of Bitcoin Terms and Definitions. United States: Lulu Press, Inc

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