henry 🌘 (@hdevalence) — Twitter Score 196 out of 1000

Henry is a cryptographer and software engineer who founded Penumbra, a fully private, cross-chain proof-of-stake network and decentralized exchange built for the Cosmos ecosystem. Henry's Twitter Score is 196 out of 1000 (an Excellent rating) as of August 2026, ranking #2,410 (top 0.5%) among 483,652 tracked accounts.

Henry founded Penumbra, which went live in July 2024 and completed a $4.75M seed round led by Dragonfly Capital. Penumbra Labs subsequently announced it was winding down operations in 2025. Previously, Henry worked at the Zcash Foundation, as well as formerly at Interstellar, Chain Inc., and Cloudflare.

Henry has contributed to several notable cryptography projects, including curve25519-dalek, Ristretto, Bulletproofs, Merlin, and a Schnorr ZKP toolkit. Ristretto, a technique he worked on, was later standardized by the IETF as RFC 9496. Henry has 15,787 followers as of August 2026 and has published 42,169 posts.

Henry's portfolio includes Entropy.

Who follows Henry on X?

The accounts that follow Henry include 719 founders, 218 angel investors, 168 influencers and 6 VCs, among them Toly, Ansem, Laura Shin, Kyle Samani, Haseeb Qureshi and Hasu. Henry has been mentioned by 140 accounts a total of 423 times.