On January 21, 2023, software developer Casey Rodarmor launched the Ordinals protocol, introducing a capability that many thought impossible on Bitcoin: the ability to inscribe arbitrary data onto individual satoshis. Within weeks, nearly 100,000 inscriptions had been created, sparking excitement and controversy across the Bitcoin community. With Bitcoin trading around $22,777 and the broader crypto market showing signs of recovery, Ordinals represents one of the most significant technical innovations on the Bitcoin network in years.
The Basics
Ordinals work by taking advantage of Bitcoin’s fundamental unit — the satoshi. Each Bitcoin is divisible into 100 million satoshis, and the Ordinals protocol assigns a unique number to each satoshi based on the order in which it was mined. This numbering system, called ordinal theory, creates a way to track and identify individual satoshis as they move through transactions.
Once satoshis are numbered, data can be “inscribed” onto them — essentially embedding information like images, text, or even small applications directly into the Bitcoin blockchain. These inscriptions are stored in witness data, leveraging the increased block space made available by the 2021 Taproot upgrade and the SegWit soft fork that preceded it.
The key insight behind Ordinals is that Bitcoin’s blockchain has always been capable of storing arbitrary data — it was simply never organized in a way that made individual units trackable and identifiable. Ordinal theory provides this organizational framework, transforming every satoshi into a potential carrier of unique digital content.
Why It Matters
The launch of Ordinals has reignited a long-standing debate within the Bitcoin community about the purpose and limits of the network. For years, Bitcoin has been characterized as a minimal, purpose-built network for sound money — in contrast to Ethereum’s philosophy of being a general-purpose computing platform. Ordinals challenges this framing by demonstrating that Bitcoin can support NFT-like functionality without any changes to the protocol itself.
Proponents argue that Ordinals increases demand for Bitcoin block space, which strengthens the network’s fee market — a critical consideration as block subsidies diminish over time. More transaction fees mean stronger security incentives for miners, potentially addressing long-standing concerns about Bitcoin’s security model in a post-halving future.
Critics counter that Ordinals bloats the blockchain with non-financial data, driving up transaction fees for users who simply want to send Bitcoin. The debate touches on fundamental questions about what Bitcoin is for and who gets to decide.
Getting Started Guide
For users interested in exploring Ordinals, the first step is understanding how inscriptions work. An inscription is created by sending a transaction on the Bitcoin network that includes the content data in its witness field. The content can be images, text, HTML, or other formats. Once inscribed, the content is permanently stored on the Bitcoin blockchain and cannot be modified.
To create an inscription, users need a Bitcoin wallet that supports Ordinals, such as the Ord wallet developed by the Ordinals team. The process involves preparing the content, creating the inscription transaction, and paying the necessary Bitcoin transaction fees. Current fees depend on network congestion, but with Bitcoin at $22,777 and transaction costs varying, users should budget accordingly.
To view and collect existing inscriptions, several explorers and marketplaces have already emerged. These platforms allow users to browse inscriptions, view their content, and trade them with other collectors. The most valuable inscriptions tend to be early examples, unique content, or those associated with significant cultural moments in the Bitcoin community.
Common Pitfalls
New users should be aware of several important considerations. First, inscriptions are permanent — once data is inscribed on the Bitcoin blockchain, it cannot be removed. Users should think carefully about what content they inscribe and ensure they hold the rights to any images or text they use.
Second, the technical process of creating inscriptions can be complex for beginners. Mistakes in the transaction construction process can result in failed inscriptions or lost funds. Users should practice with small amounts first and follow official documentation carefully.
Third, the Ordinals ecosystem is very new and rapidly evolving. Tools, marketplaces, and best practices are changing frequently. What works today may be superseded by new developments tomorrow. Users should stay connected with the Ordinals community through official channels to keep up with the latest updates.
Next Steps
The Ordinals protocol represents a fascinating development in Bitcoin’s evolution. Whether it becomes a lasting feature of the ecosystem or remains a niche experiment depends on how the community responds and what applications developers build on top of it. For now, Ordinals has proven that Bitcoin is more flexible than many assumed, and it has opened a new frontier for innovation on the world’s most secure blockchain. As the crypto market continues to recover with Bitcoin at $22,777 and Ethereum at $1,627, expect Ordinals to remain a hot topic in the months ahead.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Always conduct your own research before interacting with any blockchain protocol.
100k inscriptions in weeks on a network that was supposed to be just for money. casey rodarmor really kicked off something nobody expected
100k inscriptions in weeks is impressive but lets see if the fees hold up when mempool congestion hits. ordinals are cool until you are paying 500 sats/vbyte to send a basic transaction
The witness data approach is clever. Using the SegWit space means these inscriptions do not bloat the main UTXO set the way people feared.
ordinal theory assigning unique numbers to individual sats is simple but elegant. tracking satoshis through transactions based on mining order
the UTXO point is important. SegWit space keeps the main chain clean while still enabling this functionality. fair tradeoff imo
I was skeptical at first but seeing JPEGs stored directly on Bitcoin is genuinely different from NFTs on Ethereum. The permanence is unmatched.
casey really said what if we put jpegs on money and half the community lost their minds. the cultural war between bitcoin purists and ordinal enjoyers is entertaining if nothing else