In this article
- TL;DR
- Six tiers of scarcity in Bitcoin's issuance history
- Common sats
- Uncommon sats
- Rare sats
- Epic sats
- Legendary sats
- Mythic sat
- Community-defined categories beyond the Rodarmor index
- Vintage sats
- Nakamoto and Patoshi sats
- Pizza sats
- Historical note on blocks 78 and 170
- Pattern-based sats
- How to find rare sats you already own
- Where rare sats trade
- Why collectors care
- References
I work in the crypto self-custody space. Serious holders rarely ask me about price. They ask what is inside their UTXOs.
TL;DR
Bitcoin's 2.1 quadrillion satoshis are not equal. Casey Rodarmor's ordinal theory gives each sat a number in the order it was mined, then ranks sats into six tiers: Common, Uncommon, Rare, Epic, Legendary, Mythic. Each tier maps to an event in Bitcoin's issuance schedule. Ord, the Ordinals software, lets anyone check a sat's tier against the chain. Rare sats sell above face value on provenance alone. In my view this is Bitcoin numismatics, and it is separate from inscriptions and token issuance.
Six tiers of scarcity in Bitcoin's issuance history
Casey Rodarmor wrote ord, the reference software for the Ordinals protocol. The first inscription sits in block 767,430, mined on 14 December 2022, per ordinals.com, and ord 0.4.0 was published on 20 January 2023 per its GitHub release. Ordinal theory gives every satoshi a permanent number in mining order. Sat 0 is the first sat of the genesis block, per ordinals.com. Sat 4,999,999,999 is the last sat of the first 50 BTC block reward. The last sat that will ever be mined is number 2,099,999,997,689,999 per the Ordinal Theory Handbook, so the total supply is 2,099,999,997,690,000 sats.
Rodarmor also defined a rarity index tied to events in Bitcoin's mining history. Six tiers, each rarer than the last. Full definitions live at docs.ordinals.com/overview.html.
Common sats
Any sat that is not the first sat of its block. All but about 6.93 million of the 2.1 quadrillion sats are Common, per the handbook's supply table. Common sats carry no collector premium. They move value and nothing more.
Uncommon sats
The first sat of each block is Uncommon. One per block, about 144 per day at Bitcoin's 10-minute block target. The Ordinal Theory Handbook counts 6,926,535 Uncommon sats over Bitcoin's whole issuance. The chain tip on 11 October 2026 was block 970,970 per mempool.space, so 970,971 first-of-block sats exist today, nearly all of them Uncommon. About 20.1 million bitcoin had been issued by that block under the halving schedule, so roughly 1 sat in 2 billion is a first-of-block sat.
In my view Uncommon sats are the natural place for a new collector to start. You can identify them and trade them, and they are limited relative to total supply.
Rare sats
Bitcoin's mining difficulty adjusts every 2,016 blocks, a two-week target. The adjustment keeps the average block time near 10 minutes as hashing power joins or leaves the network. The first sat of each difficulty period is Rare. About 26 periods start each year, and the handbook counts 3,432 Rare sats over Bitcoin's lifetime. By block 970,970, 481 of them existed, the latest from block 969,696 on 3 October 2026 per ordinals.com.
Epic sats
Every 210,000 blocks, about every four years, the block subsidy halves, per Bitcoin Core's consensus parameters. The halving explainer covers the schedule in detail. The first sat of each halving epoch is Epic.
The handbook's supply table lists 27 Epic sats over Bitcoin's lifetime, because the first sats of the other epochs rank as Legendary or Mythic. Four Epic sats exist today. The halving blocks, with times from mempool.space:
- Block 210,000: 28 November 2012, subsidy 50 BTC to 25 BTC
- Block 420,000: 9 July 2016, subsidy 25 BTC to 12.5 BTC
- Block 630,000: 11 May 2020, subsidy 12.5 BTC to 6.25 BTC
- Block 840,000: 20 April 2024, 00:09 UTC, subsidy 6.25 BTC to 3.125 BTC
- Block 1,050,000: 79,030 blocks after the 11 October 2026 tip, so about April 2028 at the 10-minute target
The fourth Epic sat is sat 1,968,750,000,000,000, per ordinals.com. In US time zones the block landed on the evening of 19 April. The UTC date is 20 April 2024.
Legendary sats
Every six halvings, a halving and a difficulty adjustment land in the same block. The handbook calls this a conjunction, puts one roughly every 24 years, and expects the first in 2032. The first sat of that block is Legendary. The handbook counts 5 Legendary sats over Bitcoin's lifetime. None exists yet, so none has traded. The tier is theoretical for now, but it anchors the upper end of the rarity conversation.
Mythic sat
One Mythic sat exists: sat 0, the first satoshi of the genesis block of 3 January 2009, per ordinals.com. Satoshi Nakamoto put the text "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" in that block's coinbase, per the Bitcoin Wiki. The same page says the genesis block reward cannot be spent because of how the code handles the genesis block. The Mythic sat will never move, and no second one can be mined.
Community-defined categories beyond the Rodarmor index
The six tiers above are the classifications in the Ordinal Theory Handbook. The handbook calls any other prized sat "exotic" and says which sats are exotic is subjective. Collectors and wallets have named their own categories. Xverse lists the ones it detects on its sattributes page.
Vintage sats
Sats created in the first 1,000 blocks, per Xverse. Bitcoin before the world knew it existed. Block 999 was mined on 19 January 2009, per mempool.space. Magisat lists Vintage as its own category. Community classification, not part of the rarity index.
Nakamoto and Patoshi sats
Xverse labels sats from coinbases of blocks mined by Satoshi Nakamoto as Nakamoto sats, per its sattributes page. Sergio Lerner studied who mined those early blocks. In 2013 he plotted the ExtraNonce field of blocks 0 to 36,288 and found one miner with a distinct pattern, per his original post. He later named that miner Patoshi and, with a refined algorithm, put its haul at close to 1.1 million BTC, per his 2019 follow-up. Treat the number as an estimate. The pattern is a mining fingerprint, not cryptographic proof of identity. Community classification, not part of the rarity index.
Pizza sats
On 22 May 2010, Laszlo Hanyecz paid 10,000 BTC for two pizzas, the first documented purchase of a good with bitcoin per the Bitcoin Wiki. The transaction confirmed in block 57,043 and paid a 0.99 BTC fee. Collectors mark the date as Bitcoin Pizza Day. Sats that passed through that payment are Pizza sats, per Xverse. Community classification, not part of the rarity index.
Historical note on blocks 78 and 170
The first transaction to another person was Satoshi sending 10 BTC to Hal Finney in block 170, mined on 12 January 2009. The Bitcoin Wiki lists Finney as the earliest identified miner and block 78 as his first block. Sats from these blocks carry weight for collectors who track the first people on the network.
Pattern-based sats
Some collectors focus on the number itself. Ord's own charm list marks palindromes, numbers that read the same in both directions, and coin sats, the first sat of each whole bitcoin. Xverse calls the first sat of each whole bitcoin an Alpha sat and the last one an Omega sat, per its sattributes page. An Alpha sat's number ends in eight zeros because one bitcoin is 100,000,000 sats. The handbook supply of about 21 million bitcoin gives about 21 million Alpha sats against about 6.93 million first-of-block sats, so most Alpha sats are not the first sat of a block. Sat 484,235,900,000,000, listed on Magisat, sits 900,000,000 sats into block 96,847 and ranks Common, per ordinals.com. These categories appeal to collectors with a mathematical rather than historical bent.
How to find rare sats you already own
You may hold rare sats right now without knowing it. Every UTXO you control contains satoshis with specific ordinal numbers. One of them might be Uncommon.
Sat hunting is scanning your UTXOs to check what you hold. The tools:
ord 0.29.0 (released 5 August 2026, github.com/ordinals/ord/releases) is the reference implementation. The sat hunting guide asks for a synced Bitcoin Core node with -txindex. Run ord --index-sats server to build the sat index, then ord wallet sats to list every rare sat your wallet controls. Expect the first index build to take time.
ordinals.com runs ord with the sat and address indexes switched on, per its status page. An address page there lists the address's outputs, each output page shows its sat ranges, and each sat page shows its rarity. Paste your Ordinals receive address, not an exchange address.
Xverse detects rare sats once you turn on Enable Rare Sats in its settings, per Xverse support. The Rare Sats tab then lists each UTXO you control and the rare sats inside it.
Some sat hunters withdraw bitcoin from exchanges and scan what arrives. In my view the method is a lottery: the withdrawal fees can outweigh the premium on a typical Uncommon find.
Where rare sats trade
The market is real and illiquid. Price discovery is slow because trades are infrequent and each sat's value depends on tier, documented provenance, and current collector sentiment.
Magisat is a marketplace built for rare sats. It lists the Rodarmor tiers and community categories, settles a purchase with a PSBT signed in your own wallet, and names Xverse as a compatible wallet. On 11 October 2026 its category table showed 6 Rare listings with a floor of 0.11 BTC and no Epic listing at all.
Supply falls with each tier. The handbook counts about 6.93 million Uncommon, 3,432 Rare, 27 Epic, 5 Legendary and 1 Mythic sat over Bitcoin's lifetime. Legendary and Mythic sats cannot trade today. The Mythic sat is unspendable. The first Legendary sat does not exist yet.
In my view no stable price anchors exist to quote. The rare-sat market is thin enough that any specific figure goes stale within weeks. Form your view from current marketplace listings.
One structural point worth knowing: Bitcoin Core 30.0, released on 10 October 2025, raised the default -datacarriersize relay limit to 100,000 bytes, from the 83 bytes of earlier versions, through pull request 32406. This affects what data nodes relay in transactions. It does not affect sat rarity. Rarity is a property of mining order, fixed when a satoshi is created in a coinbase. No relay policy change can reassign a satoshi's ordinal number or rarity tier.
On 11 October 2026, ordinals.com/status showed 128,058,183 inscriptions. The inscription market and the rare-sat market are separate collector segments with different value drivers.
Why collectors care
Bitcoin's 21 million coin supply is macro scarcity. Rare sats are micro scarcity within that fixed supply. They leave the number of bitcoins unchanged. Some satoshis matter more to collectors because of when they were created and what Bitcoin was doing at that moment.
A collector can point to a specific Epic sat and document it: one of 27 sats that can ever reach this tier, per the handbook. This one came out of the block that recorded Bitcoin's fourth halving on 20 April 2024 UTC. Every transaction it has been part of since block 840,000 is visible on-chain. Its full history is public and immutable.
A serial number on a physical collectible gives you less. Here the blockchain records where the sat has been, and you need no third party to confirm it.
For more on why block events matter to Bitcoin's structure, read Bitcoin halving explained. For how the Ordinals protocol works and what inscriptions are: Bitcoin Ordinals and Inscriptions. For inscribing data onto a specific sat: how to create ordinal inscriptions. For keeping sats safe: Bitcoin self-custody.
References
- Ordinal Theory Handbook, overview: rarity levels and supply table
- Ordinal Theory Handbook, FAQ: sat numbering and fees
- Ordinal Theory Handbook, sat hunting: ord commands
- ord releases: ord 0.29.0, 5 August 2026
- ordinals.com status: inscription count and indexes, 11 October 2026
- mempool.space: chain tip 970,970 on 11 October 2026
- Bitcoin Core consensus parameters: halving interval, difficulty timespan, block spacing
- Bitcoin Wiki, Genesis block, Hal Finney and Laszlo Hanyecz
- Sergio Lerner, 2013 and 2019: Patoshi pattern research
- Xverse support, rare sats and sattributes
- Magisat: rare sat marketplace
- Bitcoin Core 30.0 release notes:
-datacarriersizedefault
This content is educational and does not constitute financial advice.
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Frequently Asked Questions
What makes one satoshi rarer than another?
How many Uncommon sats exist?
How many Epic sats can ever exist?
Is buying a rare sat the same as owning Bitcoin?
How do I check if I own any rare sats?
ord --index-sats server, then ord wallet sats), as the sat hunting guide describes. Or turn on Enable Rare Sats in Xverse settings, which lists the rare sats in your UTXOs per Xverse support. Use your Ordinals receive address, never an exchange address.