Let’s talk about Merkle trees.
Named after cryptographer Ralph Merkle, this data structure was first proposed in the late 1970s.
To be honest, I only came to understand this later: on platforms that offer proof of reserves, you can follow the official instructions and use a Merkle path to verify your own balance.
The header of every $BTC block contains a Merkle root that summarizes all the transactions in that block.
Every reward comes with a corresponding risk, so think carefully about how much you could lose in the worst case.