Bitcoin · Ordinals · 2024
Pizza Ninjas
I led the custom Bitcoin inscription pipeline for the original 1,500-piece collection, then helped build the recursive traits, animation, customization, and games that followed.
- Product
- A 1,500-piece recursive Ordinals collection with extensible traits, animation, and utilities.
- Delivery scope
- Inscription orchestration, UTXO and fee control, ordering, retries, confirmation visibility, and the recursive systems that followed.
- Public evidence
- 4public sources1live inscription
Project constraints
- 01Permanent writes with no rollback
- 02Live fee and mempool movement
- 03Strict ordering and dependency control
The challenge
Ship an ordered collection on Bitcoin while fees, mempool conditions, and immature Ordinals tooling could change underneath the run.
In early 2024, reliable batch tools for Ordinals were still missing. Each inscription carried fees, UTXO state, order, and permanent provenance. A bad retry could duplicate work; a poor fee choice could strand a batch. The launch needed to surface those risks before anything irreversible reached Bitcoin.
Architecture and decisions
Manifest-driven ordering
One manifest showed the team what was ready, sent, or confirmed, with each asset tied to its destination and dependencies.
Fee-aware batching
Work was grouped into controlled batches and evaluated against live fee conditions instead of assuming one static estimate would survive the full launch.
Recursive asset architecture
Shared SVG traits, HTML, and JavaScript are inscribed once and referenced through recursive `/content` endpoints. Each Ninja assembles and runs those on-chain resources in the browser, enabling animation and interaction without duplicating a full application inside every inscription.
Recoverable operations
Preparation, broadcast, and confirmation were treated as separate states so incomplete work could be reconciled and resumed without blindly replaying finished inscriptions.
On Bitcoin
A real inscription
Inspect the on-chain work, not only a screenshot.
Pizza Ninja #1 is not a static image. Its inscription is browser-rendered HTML and JavaScript that resolves shared recursive on-chain assets, runs animation, and can be interacted with directly once loaded.
My role
-
01
Built the custom orchestration needed to prepare, batch, and track the 1,500-inscription launch when reliable batch tooling did not yet exist.
-
02
Designed the run around UTXO control, live fee movement, ordering, retries, and confirmation visibility.
-
03
Worked on the recursive reference model that turned the artwork into reusable on-chain components rather than 1,500 isolated files.
-
04
Carried the same technical foundation into follow-on utilities, including dynamic traits, animation surfaces, and Pizza Pets.
What changed
1,500 inscriptions shipped on Bitcoin. Pizza Ninja #1 later sold for $139,700 at Sotheby’s.
The launch did more than place a collection on Bitcoin. It established an extensible on-chain codebase: the official project now exposes more than 2,000 traits, recursive endpoints, animation utilities, and on-chain emulators. The first piece then crossed into a Sotheby’s Bitcoin Ordinals auction and achieved a $139,700 sale.
- The original 1,500-piece run shipped through a custom Bitcoin inscription pipeline built for changing network conditions.
- The recursive foundation grew into traits, animation, customization, emulators, and games.
- Pizza Ninja #1 entered Sotheby’s Bitcoin Ordinals auction and sold for $139,700.
Tools and technologies
Sources