Cardano has continued to advance its credentials as a venue for Bitcoin Defi (BTCFi), facilitating a transfer of Ordinals to its mainnet.The on-chain transaction between Bitcoin and Cardano was facilitated by BitVMX, an interoperability protocol built using the BitVM programming language. The transaction was unveiled by Input | Output (IO), the creator of the layer 1 Cardano, at the Bitcoin 2025 conference in Las Vegas on Tuesday.The bridge represents a "preview of what is to come," IO said in an emailed announcement
source: https://www.coindesk.com/tech/2025/05/23/bitcoin-ordinals-can-now-be-bridged-to-cardano-through-bitvmx