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Merge pull request #73 from erikwam/patch-13

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Update ch07.asciidoc
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Minh T. Nguyen 2014-07-30 22:24:12 -07:00
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@ -62,7 +62,7 @@ Unlike the block hash, the block height is not a unique identifier. While a sing
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==== ====
A block's _block hash_ always identifies a single block uniquely. A block also always has a specific _block height_. However, it is not always the case that a specific block height can identify a single block, rather more than one blocks can compete for a single position in the blockchain. A block's _block hash_ always identifies a single block uniquely. A block also always has a specific _block height_. However, it is not always the case that a specific block height can identify a single block. Rather, two or more blocks may compete for a single position in the blockchain.
==== ====
=== The Genesis Block === The Genesis Block