Kilosat uncommon
The first sat of every 1,000th bitcoin: a sat number divisible by 100,000,000,000 but not by 1,000,000,000,000, nearly always a block's first sat.
How a sat qualifies
An alpha is the first sat of a whole bitcoin: a sat number divisible by 100,000,000. A milestone alpha marks a round number of bitcoin. Sat s is a kilosat alpha when s is divisible by 100,000,000,000 (1,000 bitcoin) but not by 1,000,000,000,000.
Every milestone sat has exactly one milestone tier, the highest it reaches: divisible by 100,000,000,000,000 is megasat, else by 10,000,000,000,000 centasat, else by 1,000,000,000,000 decasat, else by 100,000,000,000 kilosat. So sat 1,000,000,000,000 is a decasat, not a kilosat.
The first is sat 100,000,000,000, the first sat of block 20.
Why "uncommon"
The fork calls the type kilosat_alpha. The site labels it Kilosat uncommon and lists it as one of Uncommon's rarest sub-categories, because these sats almost always open a block. Of the 18,900 there will be:
- 18,820 are plain uncommon;
- 61 are rare, such as sat 50,400,000,000,000 (block 10,080);
- 1 is epic: sat 1,837,500,000,000,000, block 630,000;
- 18 fall mid-block, all in blocks from 2,130,880 on (for example sat 2,098,100,000,000,000).
The category matches by type, so it holds all of them, whatever their tier. A rare kilosat sat is in Kilosat uncommon and Rare, never in Uncommon.
Its pair
The sat just before each one, s - 1, is the last sat of the previous 1,000 bitcoin, a Kilosat black. Its tier is worked out on (s - 1) + 1 = s, so the two always share a milestone tier. The site's pair rule counts a Kilosat black sold with a Kilosat uncommon as part of the uncommon's sale.
How many
Will ever exist: 18,900. Mined so far: 18,091. Extracted, held alone in small outputs: 2,736.
Supply and market
| Category | Will exist | Mined | Extracted | Last sale | Floor |
|---|---|---|---|---|---|
| Kilosat uncommon | 18,900 | 18,091 | 2,736 | 93,454 sats | 98,670 sats |
As of block 972,427. Prices are per sat.