Ordinals: How Casey Rodarmor Put NFTs on Bitcoin

In January 2023, a Bitcoin Core developer named Casey Rodarmor released the Ordinals protocol — a way to inscribe arbitrary data (images, text, audio) directly onto individual satoshis. The technical approach was clever: it used the Taproot soft fork enabled in 2021 to smuggle data into witness fields. No new tokens. No new chains. Just Bitcoin with a numbering scheme that let you treat specific sats as unique digital artifacts.

The Bitcoin community split instantly. Bitcoin maximalists were furious — they saw Ordinals as spam that would drive up fees and clog the network for “real” monetary use. NFT collectors were electrified. Within weeks, the first Ordinals collections were launching: Ordinal Punks, Bitcoin Rocks, and dozens of early art inscriptions. Block space filled up. Fees spiked. Critics called it vandalism. Supporters called it the most interesting thing to happen to Bitcoin in years.

Rodarmor became an unlikely protocol celebrity. He had worked on Bitcoin Core, maintained a weird personal website, and made almost no money from creating Ordinals (the protocol had no token). His public talks at conferences — often rambling, self-deprecating, and genuinely technical — made him one of the more interesting figures in the space. He resisted the pressure to turn Ordinals into a business and focused on protocol stewardship.

By 2024, Ordinals had generated billions of dollars in secondary market volume, brought NodeMonkes and Bitcoin Puppets into the blue-chip NFT conversation, and forced every Bitcoiner to confront the reality that Bitcoin block space could be used for more than payments. Whether that’s good or bad is still debated, but Rodarmor’s cultural impact is undeniable. He took a protocol most people thought was feature-complete and showed that there was still enormous creative headroom left.


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