Bitcoin Ordinals
By Menno — 13 years in crypto, 3 bear markets survived, zero paid promotions
Last updated: March 2026
AI Quick Summary: Bitcoin Ordinals Summary
Term
Bitcoin Ordinals
Category
Blockchain
Definition
Bitcoin Ordinals is a protocol that allows individual satoshis (the smallest unit of Bitcoin) to be identified, tracked, and "inscribed" with digital data like images or text, effectively creating NFTs directly on the Bitcoin base layer.
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Bitcoin Ordinals is a protocol that allows individual satoshis (the smallest unit of Bitcoin) to be identified, tracked, and "inscribed" with digital data like images or text, effectively creating NFTs directly on the Bitcoin base layer.
Ordinals, created by Casey Rodarmor, uses Bitcoin's existing SegWit and Taproot upgrades to inscribe arbitrary data (images, text, code) directly into Bitcoin transactions. Each satoshi gets a unique ordinal number based on its mining order, making it individually identifiable and trackable.
Unlike Ethereum NFTs that typically store metadata on IPFS or centralized servers with only a pointer on-chain, Ordinal inscriptions store the entire content on the Bitcoin blockchain. This means the art, text, or code is immutable and permanent as long as Bitcoin exists — but it also means each inscription consumes block space.
According to Dune Analytics, over 65 million Ordinal inscriptions had been created by Q1 2025, generating over $250 million in miner fees. The Ordinals protocol reignited Bitcoin cultural activity and drove Bitcoin transaction fees to multi-year highs during inscription waves. Notable collections include Bitcoin Punks, Ordinal Maxi Biz, and NodeMonkes, with floor prices reaching several BTC for top collections.
Ordinals are controversial within the Bitcoin community. Supporters argue they bring new use cases, users, and fee revenue to Bitcoin. Critics contend they clog block space, increase transaction costs for payments, and contradict Bitcoin's purpose as a monetary network. Regardless, Ordinals proved that Bitcoin's base layer can support more than just financial transactions.
Frequently Asked Questions
How are Bitcoin Ordinals different from Ethereum NFTs?
Ordinals inscribe content (images, text) directly on the Bitcoin blockchain — the data lives on-chain permanently. Ethereum NFTs typically store a pointer on-chain with actual content on IPFS or external servers. Ordinals use satoshi serial numbers for uniqueness; Ethereum NFTs use smart contract standards (ERC-721). Ordinals lack native marketplace smart contracts, making trading more complex.
Do Ordinals increase Bitcoin transaction fees?
Yes. Inscriptions compete with financial transactions for limited block space. During inscription waves, Bitcoin fees have spiked significantly — average fees exceeded $30 during peak Ordinals activity in 2023. However, this also increases miner revenue, which is important for Bitcoin's long-term security as block rewards halve every four years.
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Related Terms
Bitcoin (BTC)
Bitcoin is the first and largest cryptocurrency by market cap, created in 2009 by the pseudonymous Satoshi Nakamoto. It functions as a decentralized digital currency and store of value with a fixed supply of 21 million BTC, secured by proof-of-work mining. Bitcoin typically represents 40-60% of the total crypto market capitalization.
NFT (Non-Fungible Token)
An NFT (Non-Fungible Token) is a unique digital token on a blockchain that represents ownership of a specific item — such as art, music, or in-game assets. Unlike fungible tokens like Bitcoin, each NFT is one-of-a-kind and not interchangeable. The NFT market peaked at $25 billion in trading volume in early 2022 before declining over 90%.
Taproot
Taproot is a Bitcoin upgrade activated in November 2021 that introduced Schnorr signatures, MAST (Merkelized Alternative Script Trees), and Tapscript. It improves privacy, efficiency, and smart contract capabilities on Bitcoin, enabling innovations like Ordinals and more complex multi-signature transactions.
BRC-20
BRC-20 is an experimental token standard for the Bitcoin blockchain that uses Ordinal inscriptions of JSON data to deploy, mint, and transfer fungible tokens.
Bitcoin Runes
Runes is a fungible token protocol for Bitcoin, created by Casey Rodarmor (who also created Ordinals). It is designed to be more efficient and "Bitcoin-native" than BRC-20 by using the UTXO model to manage token balances.
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