│ ╰───── First block in halving epoch
╰─────── Second cycle
```

And this satoshi is mythic:

```
0°0′0″0‴
│ │ │ ╰─ First sat in block
│ │ ╰─── First block in difficulty adjustment period
│ ╰───── First block in halving epoch
╰─────── First cycle
```

If the block offset is zero, it may be omitted. This is the uncommon satoshi
from above:

```
1°1′1″
│ │ ╰─ Not first block in difficulty adjustment period
│ ╰─── Not first block in halving epoch
╰───── Second cycle
```

Rare Satoshi Supply
-------------------

### Total Supply

- `common`: 2.1 quadrillion
- `uncommon`: 6,929,999
- `rare`: 3437
- `epic`: 32
- `legendary`: 5
- `mythic`: 1

### Current Supply

- `common`: 1.9 quadrillion
- `uncommon`: 808,262
- `rare`: 369
- `epic`: 3
- `legendary`: 0
- `mythic`: 1

At the moment, even uncommon satoshis are quite rare. As of this writing,
745,855 uncommon satoshis have been mined - one per 25.6 bitcoin in
circulation.

Names
-----

Each satoshi has a name, consisting of the letters *A* through *Z*, that get
shorter the further into the future the satoshi was mined. They could start