Pogun’s Architecture for Bitcoin DeFi
A new article by Torben Poguntke from Input Output Global discusses Pogun’s Bitcoin DeFi architecture and its approach to trust-minimized bridging. The post outlines production challenges around BitVM3 garbled circuits and alternative verification designs.
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Why Pogun's Bitcoin DeFi architecture is achievable

Pogun's technical team built Cardinal, Input Output (IO)'s open-source Bitcoin bridge specification, on BitVMX. Cardinal demonstrated the core mechanism live on the Bitcoin mainnet at Bitcoin 2025. That experience surfaced where the BitVM family's production constraints sit and where each iteration can and cannot carry weight at scale.