I Love Rare Sats

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Protocol
First sat of a whole bitcoin — the number ends in eight zeros.First sat of a block. Excludes blocks that are rare, epic, legendary or mythic — the rarity ladder is exclusive.First sat of a difficulty adjustment period (every 2,016 blocks).First sat of a halving epoch (every 210,000 blocks).First sat of a cycle (every 1,260,000 blocks). None exist yet — the first arrives around 2032.The first sat of the genesis block. Exactly one, and unspendable.Last sat of a whole bitcoin — the number ends in 99999999.Last sat of a block. Excludes blocks that are black rare or black epic.Last sat of a difficulty adjustment period.Last sat of a halving epoch.
Historical
The 100,000,000 sats in block 9 whose numbers begin with 450.Every sat mined in block 9.Every sat mined in block 78.Every sat mined in block 286.Every sat mined in block 666.Every sat mined in block 999.Every sat mined in the first 1,000 blocks.Sats mined in January 2009.Sats mined in 2009.
Events
The 10 BTC of the first bitcoin transaction, Satoshi to Hal Finney, 2009-01-12.Sats from 19 blocks mined by Satoshi that were later spent (Whale Alert research).Sats from 17 blocks attributed to Hal Finney (Bitcoin.com research).The 10,000 BTC spent on two pizzas on 2010-05-22.Sats traced to the murder-for-hire payments in the Silk Road case.Sats from the first image ever bought with bitcoin.The 29,656.5 BTC sold in the first US Marshals auction of seized Silk Road coins, 2014-06-27.Every sat mined in block 938,713 — Parasite Pool's first block.
Palindrome
The sat number reads the same forwards and backwards. The three tags beside it are all subsets of this one. e.g. 1234554321Perfect Palinception — one palindromic substring repeated to form the whole number, and that substring uses at least 2 distinct digits. The narrowest of the family. e.g. 121121121121 = 121·121·121·121Uniform Palinception — a palindrome that splits into equal-length chunks of at least 3 digits, each chunk itself a palindrome. e.g. 454141060141454 = 454·141·060·141·454Sequence Palindrome — a palindromic number containing at least 3 identical digits in a row. e.g. 3275433345723, the 333 in the middle
Digits
The sat number uses exactly 1 distinct digit.The sat number uses exactly 2 distinct digits.The sat number uses exactly 3 distinct digits.
Others
Every sat mined in a block whose HEIGHT is a palindrome (1, 99, 12321 …). The height is the palindrome, not the sat number — this is unrelated to the Palindrome tags.The sat's base-26 name matches a word in ord's 12,450-word list.The sat number is a Fibonacci number.ord's luck score for a block: leading zero bits of the block hash minus those of the difficulty target. It belongs to the block, not to a single sat — so pair it with Uncommon or Rare, the boundary sats that carry it. On its own it would select every sat in those blocks.
Updated 2026-09-12 UTCAll figures come from a full rebuild that runs once a week, not from live chain state. Snapshot at block 966,707. Next update 2026-09-19 19:00 UTC.
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Full-chain index, refreshed weekly  ·  Definitions follow ord, plus this site's own measurements  ·  How this page works

What the table counts

Each row is one tag or combination of tags. Total supply is how many will ever exist: if any tag in the combination is a closed set — Pizza, Silk Road, a specific block or year — the whole combination is closed and Total equals Mined. Mined is what exists so far, Burned what is provably unspendable forever. Hover a column header for its definition.

Active columns

Active B210k / B420k / B630k count sats held by an address that received funds after block 210,000 (2012-11-28), 420,000 (2016-07-09) or 630,000 (2020-05-11) — the first three halvings; Active 365d uses the last 365 days. They are a proxy for sats that are not lost or dormant, measured per address, not per sat.

Sequestered, collectors, holders

Sequestered means a sat sitting alone in a UTXO of 1,000 sats or less — deliberately isolated so it can be moved or listed on its own. Collectors are the distinct addresses holding sequestered sats, excluding addresses with more than 10 BTC, so exchanges, custodians and dormant early wallets stay out. Holders is every address holding one of these sats, most of them unaware. Ranks are per address, so a collector spread over several addresses ranks lower than they should.

Tiers

Every tag gets a tier from its active B630k circulation — sats held by an address that has received bitcoin at or after block 630,000 (2020-05-11, the third halving). It is a proxy for sats that are not lost or dormant, measured per address, not per sat. Base is over 1,000,000 active sats and only single-dimension tags; Classic is 10,000 to 1,000,000; the S tiers are fewer than 10,000, 1,000, 100 and 10 — down to the last of its kind.

Limits

Combinations larger than 2,000,000 sats are not computed. Tags follow ord (Ordinal Theory) where ord defines them; the composites and the S-tier measurements are this site's own.

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