Paliblock
The first or last sat of a block whose height is a palindrome, such as block 1,001, when that sat is a plain uncommon or black with no historic type.
How a sat qualifies
Paliblock is about the block height, not the sat number. For a block h whose height reads the same both ways (1,001, 1,111, 12,321 …), two sats can be paliblock:
- its first sat, when
his not 0 and not a multiple of 2,016, 210,000 or 1,260,000: the sat is a plain uncommon, not rare, epic or legendary; - its last sat, when
his not 0 andh + 1is not a multiple of 2,016 or 210,000: the sat is a plain black, not black rare or black epic.
Then the rule normalizePaliblockTypes checks the sat's other types. Paliblock is kept only if every type the sat has is one of uncommon, black, alpha, omega or a milestone type (the Kilosat to Megasat uncommons and blacks). Any other type drops it: a palindromic sat number, a Bounty3 name, or a historic range such as vintage, block 9, Nakamoto, pizza or Silk Road.
Examples
- Blocks 1 to 999 are all vintage (sats below 5,000,000,000,000), so none of their sats is a paliblock.
- Block 1,001 is the first: its first sat, 5,005,000,000,000 (uncommon, alpha), and its last, 5,009,999,999,999 (black, omega), are both paliblock.
- Block 991,199 will close with sat 2,015,999,999,999,999, a paliblock that is also a Decasat black.
From block 6,720,000 on, a block's subsidy is a single sat, both first and last, so a palindromic block there has one paliblock sat instead of two.
How many
Will ever exist: 15,412. Mined so far: 3,713. Extracted, held alone in small outputs: 519.
Supply and market
| Category | Will exist | Mined | Extracted | Last sale | Floor |
|---|---|---|---|---|---|
| Paliblock | 15,412 | 3,713 | 519 | 299,000 sats | 289,670 sats |
As of block 972,427. Prices are per sat.