Block Explorer is a real-time online blockchain service that provides information about transactions from digital asset addresses and when they occurred. In addition to the transactions that have been made by that address, It can also be used to view the balance at that address. This is possible because digital assets are pseudonymous where the address of the digital asset can be seen but there is no name of the owner.
Block Explorer connects directly to a specific blockchain, such as Bitcoin or Ethereum. They allow users to view and query individual blocks — giving anyone visibility of transactions or other actions performed by individual crypto asset holders. This is an important part of the mission of transparency and decentralization of crypto assets, and universal visibility of all transaction data is one of the main differentiators between crypto-assets and conventional currencies.
There is a wide variety of Block Explorers available online, with the most popular including Mempool, Bitaps, Blockstream, Multihash, Blockchain Info, and Bitupper Explorer.
Most include the same or similar information at a glance, focusing on the last block that has been added to the blockchain, and the block that will be added next.
Within each block, information is provided about the block height, block age, block reward, identity of the user or pool of users mining the block, a TX (or transaction list) indicating the number of transactions in the block, and the status of the transaction — that is, whether the transaction is pending or confirmed. To explore a specific block or transaction, Block Explorer users must enter a specific query.
Most commonly this is the TXID, or transaction hash — a hex sequence used to uniquely identify a particular transaction. Although there are many Block Explorer is a real-time online blockchain service that provides all kinds of information about digital asset transactions. on offer, relatively few of them support SegWit, an upgrade to the Bitcoin blockchain enabled in 2017. SegWit-enabled block explorers include Bitaps, Apirone, Blockchair, Bitupper, Cryptoid Chainz, and Poolin Explorer.