Isabel Foxen Duke⚡️ (@isabelfoxenduke) — Twitter Score 123 out of 1000

Isabel Foxen Duke is a Bitcoin quantum-resistance researcher who co-authored BIP 360, a draft Bitcoin consensus soft-fork specification proposing a quantum-attack-resistant output type. Isabel Foxen Duke's Twitter Score is 123 out of 1000 (an Excellent rating) as of October 2026, ranking #5,323 (top 5%) among 498,071 tracked accounts.

Isabel Foxen Duke works at MARA Foundation as Head and is affiliated with MARA Holdings, Inc. BIP 360 proposes Pay-to-Merkle-Root (P2MR), a Bitcoin output type designed to resist long-exposure quantum attacks and to remove Taproot's quantum-vulnerable key path spend. The specification was assigned in late 2024, with Isabel Foxen Duke listed as one of its authors.

Isabel Foxen Duke is also involved with the MARA Foundation, an initiative launched by MARA dedicated to strengthening the Bitcoin network and expanding access to bitcoin as a tool for financial freedom. The Foundation's first initiative was a $100,000 contribution election among SateNet, 256 Foundation, and Libreria de Satoshi, with 256 Foundation ultimately awarded the $100,000 contribution following nearly 5,000 verified votes. Isabel Foxen Duke has 15,936 followers as of October 2026 and has published 11,715 posts, and has been mentioned by 116 accounts a total of 276 times.

Who follows Isabel Foxen Duke on X?

The accounts that follow Isabel Foxen Duke include 484 founders, 55 angel investors, 294 influencers and 5 VCs, among them Erik Voorhees, Nic Carter, Threadguy, Udi Wertheimer, Jesse Powell and Loomdart.