Nakamoto alpha
A Nakamoto sat that starts a bitcoin: a multiple of 100,000,000 inside one of the 19 Nakamoto blocks, 50 per block, 950 in all.
How a sat qualifies
The row's definition is Nakamoto and alpha. An alpha is a sat whose number is a multiple of 100,000,000, the first sat of a whole bitcoin. Each Nakamoto block holds 50 BTC, starting on a multiple of 5,000,000,000, so it has exactly 50 alphas: h × 5,000,000,000 + k × 100,000,000 for k from 0 to 49. Over 19 blocks that is 19 × 50 = 950.
Alpha is not a tier, so nothing is taken out: the first alpha of each block (k = 0) is also the block's first sat, a Nakamoto uncommon, and is in both rows.
The alphas of blocks 9 and 286 are also Block 9 alphas and Block 286 alphas; those of blocks 9, 286, 688 and 877 are vintage alphas too.
Why collectors care
A Nakamoto alpha marks a whole-bitcoin boundary inside a block the site attributes to Satoshi Nakamoto. The set is closed at 950.
How many
- Will ever exist: 950, all mined.
- Extracted, each held alone in a small output: 100.
- Addresses holding one: 424.
Supply and market
| Category | Will exist | Mined | Extracted | Last sale | Floor |
|---|---|---|---|---|---|
| Nakamoto alpha | 950 | 950 | 100 | 659,670 sats | 790,000 sats |
As of block 972,427. Prices are per sat.