Dad: Son, what is a "Bitcoin block" exactly?

Son: Hi Dad,

Think of it as a record of ownership at a certain point in time.

The "point in time" is measured as "block height", which is the number of blocks in the chain between a given block and the very first block in the blockchain.

Dad: So the blockchain can also be used to measure time?

Son: Yes, exactly, that's why Satoshi also called the blockchain a "timechain".

#Bitcoin