What Are Bitcoin Ordinals? Inscriptions Explained
Bitcoin Ordinals have transformed the world's oldest blockchain from a simple store of value into a platform for digital artifacts. This guide breaks down how you can store data directly on the Bitcoin network and what you need to know before diving in.
What you need to know
- Ordinals allow individual satoshis to be tracked and inscribed with data.
- Unlike NFTs on Ethereum, Ordinal data is stored directly on the Bitcoin blockchain.
- A satoshi is the smallest unit of Bitcoin (1/100,000,000 BTC).
- Inscriptions can include text, images, audio, or even video files.
- Ordinals do not require a separate sidechain or token to function.
- Transaction fees for inscriptions can be high during network congestion.
- You need a Taproot-compatible wallet to safely manage Ordinals.
- Ordinals are permanent and cannot be deleted once inscribed.
- The Ordinals protocol relies on the order in which satoshis are mined.
- Marketplaces like Magic Eden now support trading Ordinals.
What are Ordinals?
At its core, the Ordinals protocol is a system that allows users to assign a unique identity to individual satoshis—the smallest units of Bitcoin. By giving each satoshi a serial number based on the order in which it was mined, the protocol turns these units into unique digital collectibles.
When you attach data to one of these numbered satoshis, it is called an inscription. Unlike traditional NFTs that often rely on off-chain storage like IPFS, an Ordinal inscription lives entirely on the Bitcoin blockchain, making it immutable and truly decentralized.
How it works
The process relies on the Taproot upgrade, which was implemented on the Bitcoin network in 2021. Taproot increased the data capacity of Bitcoin blocks, allowing users to store larger amounts of information within the witness data of a transaction.
When a user creates an inscription, they are essentially sending a transaction that embeds their chosen file into the blockchain. Because the data is part of the transaction itself, it is permanently etched into the ledger, ensuring that as long as the Bitcoin network exists, your inscription exists with it.
Risks
While Ordinals are an exciting innovation, they come with specific risks. First, the Bitcoin network was designed for financial transactions, not high-volume data storage. High demand for inscriptions can lead to network congestion, causing transaction fees to spike for everyone.
Additionally, there is the risk of user error. If you send an inscribed satoshi to a standard Bitcoin address that does not support Ordinals, you could accidentally spend the satoshi as a regular payment, effectively destroying the inscription. Always use a dedicated Ordinals-compatible wallet to avoid this.
Getting started
To get started with Ordinals, you need a wallet that supports the protocol, such as Xverse or Unisat. These wallets are designed to handle the nuances of satoshi selection, ensuring you don't accidentally spend your inscribed assets.
- Set up an Ordinals-compatible wallet.
- Purchase a small amount of Bitcoin to cover transaction fees.
- Visit an Ordinals marketplace to browse or mint your own inscriptions.
- Always double-check your address before sending assets to ensure they are compatible.
Common questions
Are Ordinals the same as NFTs?
While they share similarities, Ordinals are stored directly on-chain, whereas most NFTs store metadata on external servers.
Can I lose my Ordinals?
Yes, if you send an inscribed satoshi to a non-compatible wallet or spend it as a standard transaction fee, the inscription can be lost.
Do I need to buy a special token to use Ordinals?
No, you only need Bitcoin (BTC) to pay for the transaction fees associated with the inscription process.
What kind of files can be inscribed?
You can inscribe text, images, audio, video, and even code, provided the file size fits within the Bitcoin block size limit.
Is it expensive to create an inscription?
The cost depends on the size of the file and the current congestion of the Bitcoin network. During busy periods, fees can be significant.
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