"Bitcoin NFT" doesn't mean one thing. It means three things, depending on who's saying it and which protocol they have in mind. The three are Counterparty, Ordinals, and Bitcoin Stamps. They share a chain. They share roughly nothing else.
The shorthand "Bitcoin NFT" obscures more than it reveals. Counterparty launched in January 2014 and has been issuing non-fungible assets since the same year. Ordinals launched in January 2023 and added a different mechanism for putting digital content on Bitcoin. Bitcoin Stamps launched in March 2023 with a third approach focused on permanence. Treating these as one category is convenient for headlines and misleading in practice, because the differences in architecture, history, and use case are real.
This article exists to be the reference starting point. What each one is. How each one works. Where each one came from. What to use when.
The three protocols, at a glance
| Protocol | Launch | Creator(s) | Storage approach | Notable use cases |
|---|---|---|---|---|
| Counterparty | Jan 2014 | Krellenstein, Wagner, Dermody | OP_RETURN metadata; image off-chain | Rare Pepes, Spells of Genesis, named assets |
| Ordinals | Jan 21, 2023 | Casey Rodarmor | Witness data inscriptions; content on-chain | Bitcoin Punks, NodeMonkes, BRC-20 tokens |
| Bitcoin Stamps | Mar 2023 | Mike In Space | UTXO-embedded base64; unprunable | SRC-20 tokens, permanent collectibles |
That's the full taxonomy. Anyone telling you about a "fourth Bitcoin NFT protocol" is either describing a derivative built on top of one of these (BRC-20 tokens, for instance, are built on Ordinals) or counting something that's better described as a sidechain rather than a base-layer Bitcoin protocol.
Counterparty: the original
Counterparty launched on January 2, 2014. It's a metaprotocol, which means it doesn't have its own blockchain. Instead, it encodes protocol messages inside Bitcoin transactions using OP_RETURN outputs and similar fields. Bitcoin nodes ignore the data. Counterparty nodes parse it and derive a state machine on top of Bitcoin's state machine.
What this enables: named asset issuance, transfers, a decentralized exchange, dividends, and a few other operations, all settled on Bitcoin's chain. The Counterparty community used these primitives for prediction markets, in-game items for the trading card game Spells of Genesis, and eventually for the Rare Pepe directory, which became the first significant cryptoart movement on any chain.
Rare Pepes, the first of which was minted in September 2016, are the most-recognized Counterparty assets. By the time the broader NFT category got its name in 2017-2018, the Rare Pepe community had already built a working market with a custom currency (PEPECASH), a wallet, and a curated directory of cards. The 2021 NFT cycle eventually re-discovered this history, and Sotheby's-era prices on early Rare Pepes reflected the documented provenance.
For more on the protocol mechanics, see the Counterparty reference piece.
Ordinals: the 2023 inflection
Ordinals are different. The protocol was announced and launched by Casey Rodarmor on January 21, 2023, with the genesis inscription having been made on December 14, 2022. Rodarmor's prior background was in Bitcoin development; the protocol grew out of his work on satoshi numbering schemes, which he eventually combined with content inscriptions to produce what people now call Ordinals.
The architecture is fundamentally different from Counterparty. An inscription is data (an image, text, a JSON file, up to ~4 MB) stored directly in a Bitcoin transaction's witness data. The Ordinals protocol then assigns the inscription to a specific satoshi using ordinal theory, which gives each satoshi a sequence number based on its position in Bitcoin's emission. The result: a non-fungible token where the content itself is on-chain and the token's identity is tied to a specific unit of Bitcoin.
Two things grew on top of Ordinals quickly. BRC-20, proposed in March 2023, used the inscription mechanism to encode fungible tokens (the first was ORDI). And Runes, a separate Rodarmor protocol launched at the Bitcoin halving in April 2024, formalized a more efficient fungible token standard meant to replace BRC-20.
The Ordinals launch generated immediate controversy. Bitcoin block sizes spiked during peak inscription periods, transaction fees climbed dramatically, and several Bitcoin Core developers including Luke Dashjr argued publicly that inscriptions were exploiting a loophole rather than using a feature. The debate continues. See the Ordinals reference piece for more.
Bitcoin Stamps: the 2023 alternative
Bitcoin Stamps was created by Mike In Space and launched in March 2023, roughly two months after Ordinals. The motivation, by Mike In Space's account, was a concern that Ordinals' use of witness data left inscriptions vulnerable to pruning by future Bitcoin Core changes (Luke Dashjr had publicly threatened exactly this).
The Stamps approach uses Bitcoin's UTXO set for data storage. Image data gets base64-encoded with a STAMP: prefix and embedded into a transaction's spendable outputs, which Bitcoin full nodes cannot prune without breaking core functionality. The result: a more permanent form of on-chain storage, at the cost of stricter size limits (24x24 pixels, 8-bit color depth for the original Stamp format) and higher transaction fees.
Bitcoin Stamps was initially built using Counterparty as a transport layer, then evolved to run directly on Bitcoin. SRC-20 tokens, the fungible token standard built on Stamps, launched alongside the NFT functionality and serve as a Stamps-native alternative to BRC-20.
See the Stamps reference piece for more.
The fundamental design trade-off
The three protocols make different choices about where the data lives, and that single decision drives most of their other differences.
Counterparty stores only token metadata on-chain. The image lives off-chain, with a hash for integrity. This is efficient in terms of Bitcoin block space, supports rich token operations (dividends, on-chain swaps), and has the longest track record. The trade-off: the image's continued visibility depends on hosting that exists outside Bitcoin.
Ordinals stores the content itself on-chain in witness data. Inscriptions are larger and consume more block space, but the content is there as long as Bitcoin is there, with the technical caveat that witness data is theoretically prunable.
Stamps stores the content in UTXOs. Even bigger on-chain footprint, even higher fees, but the data is in the part of Bitcoin that absolutely cannot be pruned without breaking consensus. Maximum permanence at maximum cost.
Three protocols, three different answers to where the data should live. Each answer is correct for some use cases and wrong for others.
Which to use when
The honest framing: pick the protocol based on what you're trying to do.
For rich token operations (named assets, on-chain swaps, dividends, prediction markets), Counterparty has the most mature feature set. It's also where the historical NFT category lives, including rare pepes and other Counterparty-era collectibles that command provenance premiums.
For maximum cultural momentum and current market liquidity, Ordinals dominates 2026. Most new NFT projects on Bitcoin launch as Ordinals. The marketplaces, wallets, and tooling are most developed here. After the Magic Eden exit in early 2026, the marketplace landscape has consolidated around a smaller number of specialist Ordinals-focused platforms.
For maximum permanence and a smaller, more committed community, Stamps offers something the other two don't. The UTXO storage makes Stamps the most durable form of on-chain Bitcoin storage available in 2026. The trade-off is cost and size limits.
Most active Bitcoin NFT collectors in 2026 hold assets across all three. The protocols coexist on the same chain. Multi-protocol marketplaces have started to emerge, supporting buyers who want to operate across the full category rather than picking a tribe.
What "Bitcoin NFT" actually means
The category is real but the boundaries depend on context. In a maximalist Bitcoin Maxi discussion, "Bitcoin NFT" usually means Ordinals or Stamps, with Counterparty quietly dismissed as not "really" on Bitcoin (because it's a metaprotocol rather than a colored coin protocol). In a Counterparty-community discussion, "Bitcoin NFT" includes Rare Pepes and the broader Counterparty ecosystem as the foundational case, with Ordinals and Stamps positioned as later arrivals.
The defensible reference position is the one this site takes: all three are Bitcoin NFTs. They settle on Bitcoin. They produce non-fungible digital assets. The differences in architecture and history are important to understand, but they don't justify any one of these being treated as the whole story while the others are footnotes. The whole story is the three protocols, the people who built them, and the markets that grew around each one.
That's the starting point. The rest of this site goes deeper on each protocol individually, the comparisons between them, and the practical questions of how to actually buy, trade, and hold what they produce.