Next Level NFTs: Ordinal Inscriptions

zardoz | July 12, 2023, 12:26 p.m.

Bitcoin, the world's first decentralized digital currency, has revolutionized the way we perceive and transact with money. As a peer-to-peer electronic cash system, Bitcoin relies on a decentralized network of computers to validate transactions and maintain the integrity of its blockchain.

While most people are familiar with the basic concepts of Bitcoin, there is a fascinating aspect of the network that often goes unnoticed: ordinal inscriptions.

What are Ordinal Inscriptions?

Ordinal inscriptions, also known as OP_RETURN transactions, are a special type of Bitcoin transaction that allows users to embed arbitrary data within the blockchain. While the primary purpose of Bitcoin is to transfer value, ordinal inscriptions enable users to store additional information permanently on the blockchain. This feature opens up a world of possibilities beyond traditional financial transactions.

Applications of Ordinal Inscriptions

Proof of Existence: Ordinal inscriptions can be used to prove the existence of a document or file at a specific point in time. By embedding a hash or fingerprint of the file within an OP_RETURN transaction, individuals or organizations can verify the authenticity and integrity of the document without relying on third-party intermediaries.

Notarization: Ordinal inscriptions can serve as a decentralized notarization mechanism. By timestamping critical information within the blockchain, individuals can establish a trusted record that cannot be tampered with. This can be particularly useful for legal documents, intellectual property rights, and other sensitive data.

Messaging and Communication: OP_RETURN transactions can be used as a secure and censorship-resistant messaging system. By encoding messages or small amounts of data within the blockchain, users can communicate directly with each other without relying on centralized platforms. This has significant implications for privacy, free speech, and avoiding censorship.

Immutable Data Storage: The Bitcoin blockchain's immutability makes it an attractive option for storing critical data that needs to be preserved indefinitely. By leveraging ordinal inscriptions, individuals and organizations can store important information, such as historical records, land titles, or even personal messages, with a high degree of security and resilience.

Challenges and Limitations

While ordinal inscriptions offer exciting possibilities, it is important to consider some challenges and limitations associated with this feature:

Limited Space: OP_RETURN transactions have a limited amount of space available for data storage. Currently, the maximum data size that can be embedded in an ordinal inscription is 80 bytes. This constraint necessitates careful planning and optimization when utilizing this feature.

Transaction Cost: Embedding data within the blockchain incurs a transaction fee, just like any other Bitcoin transaction. As the Bitcoin network operates with limited block space, larger data sizes may require higher transaction fees to prioritize inclusion in the blockchain.

Scalability: As more users leverage ordinal inscriptions, the overall size of the blockchain increases. This growth presents challenges in terms of storage and network bandwidth requirements. It also raises debates about the balance between the utility of ordinal inscriptions and the potential strain they may put on the network.


Ordinal inscriptions on the Bitcoin network provide a powerful mechanism for embedding arbitrary data within the blockchain. By leveraging this feature, users can achieve proof of existence, notarization, secure messaging, and immutable data storage.

While there are challenges to consider, such as limited space, transaction costs, and scalability, the possibilities offered by ordinal inscriptions showcase the broader potential of the Bitcoin blockchain beyond financial transactions.

As the technology continues to evolve, we can anticipate innovative use cases and applications that harness the full power of ordinal inscriptions to reshape various industries and enhance decentralized systems.

The minions at Fnurkz are currently working on a marketplace that supports ordinals. Moreover, it will support regular NFTs and so-called Ethscriptions, which we will touch upon in the next post.

Stay tuned!