``` Ordinal theorists often use the terms "hour", "minute", "second", and "third" for *A*, *B*, *C*, and *D*, respectively. Now for some examples. This satoshi is common: ``` 1°1′1″1‴ │ │ │ ╰─ Not first sat in block │ │ ╰─── Not first block in difficulty adjustment period │ ╰───── Not first block in halving epoch ╰─────── Second cycle ``` This satoshi is uncommon: ``` 1°1′1″0‴ │ │ │ ╰─ First sat in block │ │ ╰─── Not first block in difficulty adjustment period │ ╰───── Not first block in halving epoch ╰─────── Second cycle ``` This satoshi is rare: ``` 1°1′0″0‴ │ │ │ ╰─ First sat in block │ │ ╰─── First block in difficulty adjustment period │ ╰───── Not the first block in halving epoch ╰─────── Second cycle ``` This satoshi is epic: ``` 1°0′1″0‴ │ │ │ ╰─ First sat in block │ │ ╰─── Not first block in difficulty adjustment period │ ╰───── First block in halving epoch ╰─────── Second cycle ``` This satoshi is legendary: ``` 1°0′0″0‴ │ │ │ ╰─ First sat in block │ │ ╰─── First block in difficulty adjustment period