40-digit hash code generated (as a transaction ID) when transaction occurs.

Block is also called block number, block height.

As new blocks added, block number increases. The number of blocks represents the length of blockchain.

Shows the time and date the block was created.

When a transaction occurs, all of user's behavior are recorded in a method of transaction.

The sanding party of the transaction.

The receiving party of the transaction (could be a contract address).