[Technical Question] How do transaction hashes contain meaningful data about the given transaction (amount of btc spent and to whom)

To my understanding, when someone sends btc to someone else, that transaction is hashed, and the hash is stored in a block in the blockchain. But what is "that transaction"? How is it that you can go on blockchain explorer, click on any transaction hash, and see: how much bitcoin was spent, which address sent it, and where it was sent to. ?

Thanks in advance for your help just trying to get a better understanding of the technology.

submitted by /u/tincock
[link] [comments]