Sat types
Every rare sat type and category this site tracks: how a sat qualifies, how many exist, and where to find them.
Rarity tiers
- Common Any sat that is not the first sat of its block: the base rarity tier of ordinal theory, which raresats.net does not track as a category of its own.
- Uncommon The first sat of a block: the lowest rarity tier above common in ordinal theory, one per block bar the few whose first sat ranks higher.
- Rare The first sat of each difficulty adjustment period: the first sat of a block whose height is a multiple of 2,016, other than every 1,260,000th.
- Epic The first sat of each halving epoch: the first sat of a block whose height is a multiple of 210,000, other than every 1,260,000th.
- Legendary The first sat of each cycle: the first sat of a block whose height is a multiple of 1,260,000, other than block 0. Five will ever exist.
- Mythic Sat 0, the first sat of the genesis block: the only mythic sat, at the top of ordinal theory's rarity ladder.
Black sats
- Black The last sat of a block's subsidy, the sat just before the next block's first sat; the mirror image of uncommon at the end of every block.
- Black rare The last sat of a difficulty adjustment period: the last sat of a block whose next block's height is a multiple of 2,016, other than at a halving.
- Black epic The last sat of a halving epoch: the last sat of a block whose next block's height is a multiple of 210,000. 33 will ever exist.
Milestone sats
- 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.
- Decasat uncommon The first sat of every 10,000th bitcoin: a sat number divisible by 1,000,000,000,000 but not by 10,000,000,000,000, nearly always a block's first sat.
- Centasat uncommon The first sat of every 100,000th bitcoin: a sat number divisible by 10,000,000,000,000 but not by 100,000,000,000,000; each opens a block.
- Megasat uncommon The first sat of every millionth bitcoin: a sat number divisible by 100,000,000,000,000. Sat 0 and twenty more, each the first sat of a block.
- Kilosat black The last sat of every 1,000th bitcoin: a sat s where s + 1 is divisible by 100,000,000,000 but not by 1,000,000,000,000, nearly always a block's last sat.
- Decasat black The last sat of every 10,000th bitcoin: a sat s where s + 1 is divisible by 1,000,000,000,000 but not by 10,000,000,000,000.
- Centasat black The last sat of every 100,000th bitcoin: a sat s where s + 1 is divisible by 10,000,000,000,000 but not by 100,000,000,000,000; each closes a block.
- Megasat black The last sat of every millionth bitcoin: a sat s where s + 1 is divisible by 100,000,000,000,000. Twenty will ever exist, each a block's last sat.
Alphas & omegas
- Alpha The first sat of a whole bitcoin: a sat whose number is divisible by 100,000,000. On its own it is not a category; combined with others it is.
- Omega The last sat of a whole bitcoin: a sat s where s + 1 is divisible by 100,000,000. On its own it is not a category; combined with others it is.
- Alpha uncommon A block's first sat that is also the first sat of a whole bitcoin: uncommon and alpha at once, a sat number divisible by 100,000,000.
- Black omega A block's last sat that is also the last sat of a whole bitcoin: black and omega at once, a sat s where s + 1 is divisible by 100,000,000.
Palindromes
- Palindrome A sat whose number reads the same forwards and backwards in decimal, such as sat 1,221 or sat 12,321; sat 0 is not counted as one.
- 1D palindrome A sat number made of one digit repeated, such as 7, 55 or 1,111,111,111,111,111; there are only 136 of them, and all are already mined.
- 2D palindrome A palindromic sat number that uses exactly two distinct digits, such as 101, 1,221 or 9,889: one of the palindrome categories the site tracks everywhere.
- 3D palindrome A palindromic sat number that uses exactly three distinct digits, such as 12,321; the site tracks them inside the Silk Road auction coins.
- Perfect palinception A palindromic sat number made of a shorter palindrome, with at least two distinct digits, repeated two or more times, such as 101,101 or 12,211,221.
- 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.
Vintage & historic blocks
- Vintage Any sat mined in the first 1,000 blocks (heights 0 to 999): sats 0 to 4,999,999,999,999, the first 50,000 bitcoin ever mined.
- Vintage uncommon The first sat of each of blocks 1 to 999: an uncommon sat that is also vintage, 999 in all, since block 0's first sat is mythic.
- Vintage black The last sat of each of the first 1,000 blocks (heights 0 to 999): a black sat that is also vintage, 1,000 in all.
- Vintage alpha A vintage sat that starts a bitcoin: a multiple of 100,000,000 below 5,000,000,000,000, mined in blocks 0 to 999. 50,000 exist.
- Vintage omega A vintage sat that ends a bitcoin: one less than a multiple of 100,000,000, below 5,000,000,000,000 (blocks 0 to 999). 50,000 exist.
- Block 9 Any of the 5,000,000,000 sats mined in block 9, sats 45,000,000,000 to 49,999,999,999: the block whose bitcoin went into the first transaction.
- 450x The first 100,000,000 sats of block 9, sats 45,000,000,000 to 45,099,999,999, whose numbers all begin 450: the first bitcoin of the first transaction.
- Block 9, 1st tx The first 10 BTC of block 9, sats 45,000,000,000 to 45,999,999,999: the sats of the first bitcoin transaction, a label within Block 9.
- Block 9 alpha A block 9 sat that starts a bitcoin: 45,000,000,000 + k × 100,000,000 for k from 0 to 49, fifty sats in all.
- Block 9 omega A block 9 sat that ends a bitcoin: 45,099,999,999 + k × 100,000,000 for k from 0 to 49, up to block 9's last sat. Fifty exist.
- Block 9 palindrome A block 9 sat whose number reads the same backwards, such as 45,000,000,054: 50,000 of block 9's 5,000,000,000 sats.
- Block 78 Any sat mined in block 78, sats 390,000,000,000 to 394,999,999,999: the block mined by Hal Finney. Its alphas, omegas and palindromes are tracked.
- Block 78 alpha A block 78 sat that starts a bitcoin: 390,000,000,000 + k × 100,000,000 for k from 0 to 49, fifty sats in all.
- Block 78 omega A block 78 sat that ends a bitcoin: 390,099,999,999 + k × 100,000,000 for k from 0 to 49, up to block 78's last sat. Fifty exist.
- Block 78 palindrome A block 78 sat whose number reads the same backwards, such as 390,000,000,093: 5,000 of block 78's 5,000,000,000 sats.
- Block 286 Any sat mined in block 286, sats 1,430,000,000,000 to 1,434,999,999,999: a block mined by Satoshi Nakamoto. Its alphas, omegas and palindromes are tracked.
- Block 286 alpha A block 286 sat that starts a bitcoin: 1,430,000,000,000 + k × 100,000,000 for k from 0 to 49, fifty sats in all.
- Block 286 omega A block 286 sat that ends a bitcoin: 1,430,099,999,999 + k × 100,000,000 for k from 0 to 49, up to block 286's last sat. Fifty exist.
- Block 286 palindrome A block 286 sat whose number reads the same backwards, such as 1,430,000,000,341: 5,000 of block 286's 5,000,000,000 sats.
- Block 666 Any sat mined in block 666, sats 3,330,000,000,000 to 3,334,999,999,999. Its alphas, omegas and palindromes are tracked one by one.
- Block 666 alpha A block 666 sat that starts a bitcoin: 3,330,000,000,000 + k × 100,000,000 for k from 0 to 49, fifty sats in all.
- Block 666 omega A block 666 sat that ends a bitcoin: 3,330,099,999,999 + k × 100,000,000 for k from 0 to 49, up to block 666's last sat. Fifty exist.
- Block 666 palindrome A block 666 sat whose number reads the same backwards, such as 3,330,000,000,333: 5,000 of block 666's 5,000,000,000 sats.
Nakamoto
- Nakamoto Any sat mined in one of 19 early blocks the site attributes to Satoshi Nakamoto, from block 9 to block 29,097: 950 BTC of sats in all.
- Nakamoto uncommon The first sat of each of the 19 Nakamoto blocks, sat h × 5,000,000,000 for block h: nineteen uncommon sats in all.
- Nakamoto black The last sat of each of the 19 Nakamoto blocks, sat h × 5,000,000,000 + 4,999,999,999 for block h: nineteen black sats in all.
- 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.
- Nakamoto omega A Nakamoto sat that ends a bitcoin: one less than a multiple of 100,000,000, inside one of the 19 Nakamoto blocks. 950 exist.
- Nakamoto palindrome A sat from one of the 19 Nakamoto blocks whose number reads the same backwards, such as 45,000,000,054 in block 9.
Pizza, JPEG, Hitman & Silk Road
- Pizza The 1,000,000,000,000 sats (10,000 BTC) that paid for the pizzas, listed as 825 sat ranges mined in blocks 24,097 to 56,787.
- Pizza uncommon A pizza sat that is also the first sat of its block: one of the 201 uncommon sats inside the 10,000 BTC that paid for the pizzas.
- Pizza black A pizza sat that is also the last sat of its block: one of the black sats inside the 10,000 BTC that paid for the pizzas.
- Pizza alpha A pizza sat that is also the first sat of a bitcoin: its sat number is a multiple of 100,000,000 inside the pizza ranges.
- Pizza omega A pizza sat that is also the last sat of a bitcoin: its sat number ends in 99,999,999 inside the pizza ranges.
- Pizza palindrome A pizza sat whose sat number reads the same forwards and backwards, such as 120,485,000,584,021.
- JPEG The 50,000,000,000 sats (500 BTC) of the first JPEG trade: the whole subsidies of ten blocks mined between 30,340 and 32,952.
- JPEG uncommon The first sat of one of the ten blocks whose whole 50 BTC went into the first JPEG trade: ten sats in all.
- JPEG alpha The first sat of a whole bitcoin inside the 500 BTC of the first JPEG trade: 50 in each of its ten blocks, 500 in all.
- JPEG omega The last sat of a whole bitcoin inside the 500 BTC of the first JPEG trade: 50 in each of its ten blocks, 500 in all.
- JPEG palindrome A JPEG sat whose sat number reads the same forwards and backwards, such as 151,700,000,007,151 in block 30,340.
- Hitman The 167,000,000,000 sats (1,670 BTC) paid for a murder for hire on Silk Road, listed as 6,200 sat ranges mined in blocks 809 to 200,848.
- Hitman uncommon A hitman sat that is also the first sat of its block: one of the few uncommon sats inside the 1,670 BTC Hitman list.
- Hitman black A hitman sat that is also the last sat of its block: one of the few black sats inside the 1,670 BTC Hitman list.
- Hitman alpha A hitman sat that is also the first sat of a bitcoin: a sat number divisible by 100,000,000 inside the Hitman list.
- Hitman omega A hitman sat that is also the last sat of a bitcoin: a sat number ending in 99,999,999 inside the Hitman list.
- Hitman palindrome A hitman sat whose sat number reads the same forwards and backwards, such as 4,074,788,874,704 in block 814.
- Silk Road The 29,656.51306529 BTC sold at the first auction of the bitcoin seized from Silk Road, listed as 405,534 sat ranges mined in blocks 78 to 295,666.
- Silk Road uncommon A Silk Road sat that is also the first sat of its block: an uncommon sat inside the bitcoin sold at the first Silk Road auction.
- Silk Road black A Silk Road sat that is also the last sat of its block: a black sat inside the bitcoin sold at the first Silk Road auction.
- Silk Road alpha A Silk Road sat that is also the first sat of a bitcoin: a sat number divisible by 100,000,000 inside the Silk Road list.
- Silk Road omega A Silk Road sat that is also the last sat of a bitcoin: a sat number ending in 99,999,999 inside the Silk Road list.
- Silk Road 3D palindrome A Silk Road sat whose number is a palindrome of exactly three distinct digits, such as 1,177,779,119,777,711.
2009
- 2009 sats Sats mined in 2009, blocks 0 to 32,489: shown on the site through the year filter, e.g. Uncommon, Black or 2D palindrome with ?year=2009.
- Black 2009 The last sat of each block mined in 2009 (heights 0 to 32,489), black rares excepted: 32,474 black sats, shown on the site as Black with ?year=2009.
- 2D palindrome 2009 A sat mined in 2009 (blocks 0 to 32,489) whose number is a palindrome of exactly two distinct digits, such as 10,000,000,001: shown on the site as 2D palindrome with ?year=2009.
Names
- Bounty3 name One of a fixed list of 12,450 sats known by their eleven-letter ord name, such as "nutcrackers"; the site shows these sats by name.
Concepts
- Ordinal theory and sat numbers Ordinal theory numbers every sat in the order it was mined and follows it through transactions first in, first out; every sat type here builds on it.
- Block luck A sat's luck is its block's: how many more leading zero bits the block's hash has than its difficulty target required.
- Birthday sats Birthday sats are the rare sats mined on a chosen calendar day; the birthday page shows how many the index locates, the listings holding them and their sales.
- Extraction An extracted sat sits in an output a collector made for rare sats: small for what it holds, as the index's per-output value budget measures it.
- Inscribed sats An inscribed sat carries an inscription; the site counts inscribed rare sats apart and keeps their sales out of rare-sat prices unless you ask for them.
- Pending Pending marks rare-sat activity still in the mempool: sales, transfers and extractions in transactions not yet mined, shown first and counted nowhere.
- Bundles and the primary sat A bundle sells several kinds of rare sat in one output; the site files it under one category, the rarest holding all its sats, else its primary sat's.
- Unit price Unit price is what a sale or listing paid per sat of its category: the price less the output's own value, divided by the category's sats it holds.