Irreducible is a zero-knowledge proof infrastructure organization that announced a shutdown in November 2025, returning remaining funds to investors and relicensing its Binius64 technology under a dual MIT + Apache 2.0 model. Irreducible's Twitter Score is 64 out of 1000 (a Good rating) as of August 2026, ranking #13,145 (top 5%) among 485,005 tracked accounts.
Irreducible was co-founded by Radisav Cojbasic and Jim Posen and was formerly known as Ulvetanna, with the rebrand announced in April 2024. The organization raised a $15M seed round in December 2022, co-led by Paradigm and Bain Capital Crypto, with participation from Jump Crypto. A $24M Series A followed in January 2025, again co-led by Paradigm and Bain Capital Crypto, with additional participation from Fenbushi Capital, L2 Iterative Ventures, Robot Ventures, and named angel investors.
Irreducible pursued partnerships with RISC Zero, integrating Binius into the RISC Zero zkVM, and with Polygon Labs on a Binius-based zkVM for the Polygon ecosystem. Irreducible has accumulated 8,372 followers as of August 2026 across 133 posts. The account has been mentioned by 41 accounts, totaling 63 mentions.
Who follows Irreducible on X?
The accounts that follow Irreducible include 247 founders, 88 angel investors, 72 influencers and 8 VCs, among them vitalik.eth, Georgios Konstantopoulos, Dan Robinson, Tarun Chitra, Eric Wall and sassal.ethacc.