Web3 Beginner: What are block height and block reward?
Block is one of the core concepts of blockchain technology. It is a data structure containing cryptos transaction records, and each block contains the hash value of the previous block, forming an immutable chain structure. Both the security and decentralization properties of blockchain technology rely on the existence of blocks.
Next, we introduce several block-related concepts:
01 Block Height
Block Height refers to the number of blocks between a block and the genesis block. The genesis block refers to the first block generated on the blockchain (it should be noted that the block height of the genesis block is 0, not 1).
The block height depends on how many people try to make transactions in a certain period, and how many of them have been verified. The higher the block, the more transactions are completed.
When we query the information of a certain block, in addition to its hash, we can also query it through its block height.
Taking bitcoin as an example, we can query the information of the bitcoin genesis block by searching for 0 through the Tokenview bitcoin block explorer.
Genesis block link: https://btc.tokenview.com/cn/block/0
We can see that the information contained in the genesis block is as follow:
hash:000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
Block height: 0
Time: 01/04/2009 02:15:05, the first block in Bitcoin history was generated on January 4, 2009.
Transaction fee: 0BTC, the transaction fee at that time was 0
Total amounts: 50BTC, the first transfer amount in Bitcoin history is 50BTC
Mining difficulty: 1, the mining difficulty is only 1 when digging out the first bitcoin
Number of transactions: 1, only 1 transaction was included in the first block of Bitcoin
02 Block Rewards
Block Reward refers to the cryptocurrency used to reward miners who produce new blocks. Block rewards are the main source of income for miners. Different cryptocurrencies will set different reward amounts.
The block rewards of most cryptocurrencies are related to their total amount. Once the cryptocurrency is fully issued, its block rewards will become 0. In addition, some cryptocurrencies will also take measures to reduce the number of rewards in order to prevent inflation, such as Bitcoin halving and Litecoin halving.
So how to check the block reward on each block? We still take Bitcoin as an example.
1 On the Tokenview Bitcoin blockchain explorer page, click the block tab to enter the block information page.
2 Then you can see the latest block data, including block height, block size, block reward, number of transactions included, total transaction amount, etc.
3 If you click on the block height 793541, you can see the detailed information of the specific block.
In addition to querying block information through the block explorer, Web3 and blockchain developers can also obtain block data by using the blockchain API.
Tokenview provides a blockchain developer interface, which allows developers to obtain real-time data without starting or building their own nodes.
Log in to the website to register an account:
https://services.tokenview.io/en/login
After successfully logging in, you can call the API to perform various functions. Such as obtaining Bitcoin block data.
Developers can get detailed information on Bitcoin blocks. This information includes the latest block height, block header details, block transaction list and block list, etc.
Here is an example to get a list of Bitcoin block transactions:
To learn more about blockchain data services, visit now:
