# Block Height 1. Block Height is a measure of how large a [[Blockchain|blockchain]] is based on the number of [[Block(s)|blocks]] appended to the chain. For instance, if a blockchain has 100 blocks, its block height would be 100. The first block in any chain, called the [[Genesis Block|Genesis Block]], is given the height of 0, and each block after just follows the numerical order. 3. Refers to the total number of [[Block(s)|blocks]] on a given [[Crypto (cryptocurrency)|cryptocurrency]] blockchain. It starts with the first block, also known as the [[Genesis Block|Genesis Block]] (Height 0) and counts up from there. 4. The number of [[Block(s)|blocks]] connected on the [[Blockchain|blockchain]]. 4. The number of [[Block(s)|blocks]] connected together in the blockchain. For example, Height 0 would be the very first block, which is also called the [[Genesis Block]]. 6. The term refers to the total number of [[Block(s)|blocks]] present in a chain at a given point of time. 5. Refers to the number of blocks connected together in the [[Blockchain|blockchain]]. For example, Height 0, would be the very first block, which is also called the [[Genesis Block]]. 6. Block height refers to the number of [[Block(s)|blocks]] that are connected in the [[blockchain]]. Height 0 is the very first block and is also called the [[Genesis Block]]. Currently, the [[Bitcoin (blockchain)|bitcoin]] blockchain counts more than 620,000 blocks with more than a decade of uninterrupted up-time since launch on 3rd January 2009. 8. The number of [[Block(s)|blocks]] preceding a particular block on a [[Blockchain|blockchain]]. For example, the [[Genesis Block]] has a height of zero because zero block preceded it. 7. The number of [[Block(s)|blocks]] in the chain between itself and the first block on that [[Blockchain|blockchain]] ([[Genesis Block]] or [[block 0]]). 8. [[Block(s)|Block]] height represents the number of blocks that were confirmed in the entire history of a particular [[Blockchain|blockchain]] network – from the genesis block (or block zero) until the most recent one. Unlike the [[Genesis Block]], all other blocks contain a reference ([[Hash]]) to the block that came immediately before it, and the block height is the number of each block in that sequence. So the block height of the genesis block is #0, and the block height of the first block [[Mining|mined]] is #1. The block height consists of the number of blocks mined (or validated) since the creation of a particular blockchain network. Block height should not be compared directly between different blockchains, as their average block period and [[Hashrate|hash rates]] are different. However, a copy of a blockchain may be considered “out of sync” if the block height of the local copy differs from what the globally accepted block height is. Thus, block height is a useful stat to look at whether the copy of the given blockchain is up to date or not. 9. A [[Block(s)|block]]'s position index in the [[blockchain]] relative to the [[Genesis Block|genesis]] (zeroeth) block. The 5th block added to a chain will have a block height of 5. 10. Block height is the position index of a [[Block(s)|block]] with respect to the [[genesis block]]. For example, the second block added to a chain will have a block height of 2. 11. If the [[genesis block]] is considered to be 0, block height is a measure of how many blocks were generated since then. Since [[Bitcoin (blockchain)|Bitcoin]] generates one [[Block(s)|block]] roughly every 10 minutes, multiplying the block height by 10 will let you calculate when it was [[Mining|mined]]. ___ ![[msbt_0209.png]]