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Parent-Child Inscriptions Explained

Learn how parent-child inscriptions work — the system for creating on-chain collections, hierarchies, and linked digital artifacts on Bitcoin.

1Simple Explanation

A parent-child inscription is a way to link inscriptions together on Bitcoin. A parent inscription is the main item (like a collection), and child inscriptions belong to it (like items in that collection). It's similar to how a folder contains files.

2Why It Matters

Parent-child relationships enable:

  • Collections — group related inscriptions under one parent
  • Provenance — prove that a child inscription was created by the parent's owner
  • Hierarchies — build complex structures of related content
  • Game assets — link character items, levels, and metadata to a parent game

This is how most major Ordinals collections organize their items on-chain.

3How It Works

  • Create a parent inscription — this is your collection or root item
  • Create child inscriptions — when inscribing, reference the parent's inscription ID
  • The Bitcoin transaction proving the relationship is recorded on-chain
  • Explorers and marketplaces can then display the parent-child hierarchy

The parent must be in your wallet when you create child inscriptions, proving ownership and authorization.

4Real-World Example

Imagine you're creating a pixel art collection called "CryptoCritters":

  • Parent: Inscribe the collection metadata (name, description, image)
  • Children: Inscribe each individual CryptoCritter as a child of the parent
  • Each child references the parent inscription ID
  • Marketplaces automatically group all children under the CryptoCritters collection

This creates a verifiable on-chain collection structure.

5Creating Parent-Child Inscriptions

To create parent-child inscriptions:

  • Inscribe the parent using any standard inscription method
  • Note the parent's inscription ID
  • When inscribing children, include a parent reference in the inscription envelope
  • The child transaction must spend the UTXO containing the parent inscription
  • This proves you own the parent and authorizes the child relationship

Several inscription services support parent-child creation. You can also use our Inscription Creator tool to build the HTML content for your parent inscription.

Frequently Asked Questions