Ordinals vs Stamps vs Counterparty: Bitcoin NFT Standards Compared

Ordinals dominate the conversation, but they aren't the only way to put NFTs on Bitcoin. Stamps and Counterparty each take fundamentally different technical approaches to the same problem -- and each has trade-offs that matter for collectors, creators, and long-term preservation. Here's how all three compare.

Ordinals: The Market Leader

How Ordinals Work

Created by Casey Rodarmor in January 2023, Ordinals inscriptions store data in the witness section of Bitcoin transactions (the same area introduced by the SegWit upgrade in 2017). The ordinal theory assigns a unique identity to each individual satoshi based on the order it was mined, and inscriptions are attached to specific satoshis.

• Data storage: Witness data (segregated witness section)
• Maximum file size: ~400KB per inscription (limited by the 4MB witness discount block size)
• Supported formats: Images, text, HTML, SVG, audio, video, JSON, and more
• Total inscriptions: 75+ million as of early 2026
• Key innovation: Uses existing Bitcoin infrastructure with no protocol changes required

The Pruning Question

The most debated aspect of Ordinals: witness data is technically prunable. Bitcoin nodes can discard witness data when running in pruned mode without affecting their ability to validate the blockchain. In practice, this means that while inscription data is on the blockchain, not every node is required to store it.

However, in reality, the vast majority of full nodes store complete witness data, and archival nodes will always retain it. The practical risk of data loss is extremely low, but it's not zero in the strictest technical sense.

Stamps (SRC-20): The Unprunable Standard

How Stamps Work

Bitcoin Stamps were created by Mike In Space as a direct response to the pruning concern with Ordinals. Stamps store data in transaction outputs (UTXOs) rather than witness data, making them truly unprunable -- nodes cannot discard this data and still validate the blockchain.

• Data storage: Bare multisig transaction outputs (embedded in UTXO set)
• Maximum file size: Much smaller than Ordinals -- typically limited to small images (under 24KB originally, expanded with newer encoding)
• Supported formats: Primarily small images (PNG, GIF, SVG), with SRC-20 tokens for fungible assets
• Total stamps: Approximately 200,000+ as of early 2026
• Key innovation: True unprunability -- data stored in a part of the blockchain that every node must retain

The Trade-Offs

Stamps pay for permanence with higher costs. Because the data is stored in transaction outputs rather than the discounted witness section, stamps are more expensive per byte to create. This cost premium limits what can be stored -- you won't see high-resolution images or videos as Stamps.

The smaller size limit means Stamps have developed their own aesthetic: pixel art, small GIFs, and minimalist designs that work within the constraints. The community has embraced this limitation as a feature, not a bug.

Counterparty: The OG Bitcoin NFT Standard

History and Significance

Counterparty launched in January 2014 -- nearly a decade before Ordinals -- making it the oldest NFT standard on Bitcoin. It works by embedding data in Bitcoin transactions using the OP_RETURN opcode and running a separate protocol layer on top of Bitcoin.

• Data storage: OP_RETURN outputs (on-chain metadata) with asset data stored on the Counterparty protocol layer
• Smart contracts: Yes -- Counterparty has its own smart contract functionality (EVM-compatible since 2016)
• Key collections: Rare Pepes (2016-2017), Spells of Genesis (2015), Age of Chains
• Total assets: Hundreds of thousands of assets issued over 12+ years
• Key innovation: First to prove that Bitcoin could support non-currency assets

Rare Pepes: The Most Historically Significant Bitcoin NFTs

The Rare Pepe collection, launched on Counterparty in 2016, is arguably the most historically important NFT project in existence -- on any blockchain. Series 1, Card 1 ("PEPECASH") and the iconic "Homer Pepe" have sold for hundreds of thousands of dollars, with Homer Pepe famously selling for $500,000+.

These aren't just old NFTs. They're the origin point of the entire NFT movement, predating CryptoPunks (2017) and CryptoKitties (2017) on Ethereum. For collectors who value historical significance, Counterparty assets are irreplaceable.

Current State of Counterparty

Counterparty experienced a significant revival in 2023-2024, driven by renewed interest in Bitcoin-native assets following the Ordinals explosion. Trading volume increased dramatically as collectors recognized that:

• Counterparty assets have the longest track record of any blockchain-based NFTs
• The community has been building for over a decade, creating a deep culture
• Cross-pollination between Ordinals and Counterparty communities brings new buyers

Storage Permanence: Which Is Truly Permanent?

It's worth noting that "permanent" in all three cases means "as permanent as Bitcoin itself." If Bitcoin exists in 100 years, so will these assets. The differences in prunability are technically real but practically academic for most collectors.

Market Size Comparison

By Current Trading Volume (2026)

1. Ordinals: Dominant by a wide margin. Hundreds of BTC in weekly trading volume across Magic Eden, Gamma, OKX, and other marketplaces.
2. Stamps: A niche but dedicated market. Lower volume but with passionate collectors. stampchain.io is the primary marketplace.
3. Counterparty: Concentrated in blue-chip historical assets. Low volume overall, but individual sales of Rare Pepes and other OG assets can reach six figures.

By Cultural Impact

Counterparty wins on historical significance. Ordinals wins on current relevance and mainstream adoption. Stamps wins on technical purity and the permanence argument. Each standard has carved out a distinct identity in the broader Bitcoin NFT ecosystem.

Which Standard Should You Collect?

Collect Ordinals If:

• You want the largest selection of artists, collections, and styles
• You value liquidity and the ability to buy/sell quickly
• You want to participate in the most active community and ecosystem
• You're interested in recursive inscriptions, on-chain apps, and technical experimentation

Collect Stamps If:

• True unprunability matters to you on a technical level
• You appreciate pixel art and small-format digital art
• You want to be early in a growing niche within Bitcoin NFTs
• You believe the permanence argument will become a stronger selling point over time

Collect Counterparty If:

• Historical significance is your primary collecting thesis
• You want to own pieces of NFT history that predate everything else
• You're comfortable with lower liquidity in exchange for cultural importance
• You see long-term value in assets that have already survived 10+ years

The Diversification Play

The smartest approach may be to hold assets across all three standards. Each represents a different facet of Bitcoin's NFT ecosystem, and each has unique strengths. A portfolio that includes blue-chip Ordinals, OG Counterparty assets, and notable Stamps captures the full breadth of Bitcoin-native digital ownership.

Don't think of these as competing standards. Think of them as layers of Bitcoin's cultural evolution -- each building on what came before and coexisting with what comes next.

Conclusion

Ordinals, Stamps, and Counterparty each solve the "NFTs on Bitcoin" problem differently, with meaningful trade-offs in permanence, cost, file size, and market adoption. Ordinals lead in volume and ecosystem size, Stamps lead in technical permanence, and Counterparty leads in historical significance.

Understanding all three standards -- not just the dominant one -- gives collectors a richer perspective on what's possible on Bitcoin and where the most overlooked value might be hiding. The Bitcoin NFT story is bigger than any single protocol.