smart
Harry Kalodner (💙,💙) (@hkalodner) — Twitter Score 161 out of 1000
Excellent
161Ranked #3,344 of 497,421 crypto accounts tracked by TwitterScore.io
jesse.base.eth
toly 🇺🇸
ZachXBT
Laura Shin
mert
nic carter
Upgrade to see this data
Upgrade to see this data
Upgrade to see this data
Smart Followers
Unlock instant search across all smart followers, plus categories, trending alpha and bulk score checks.
Unlock instant search across all smart followers, plus categories, trending alpha and bulk score checks.
| Username | Following Date | Twitter Score | Followers | Smart Followers | Description |
|---|---|---|---|---|---|
|
|
|||||
About Harry Kalodner (💙,💙)'s Twitter Score
Harry Kalodner is a blockchain researcher and engineer who co-founded Offchain Labs and Arbitrum, serving as CTO of Offchain Labs. Harry Kalodner's Twitter Score is 161 out of 1000 (an Excellent rating) as of October 2026, ranking #3,338 (top 1%) among 497,131 tracked accounts.
Harry Kalodner co-founded Offchain Labs, the development team behind the Arbitrum scaling protocol, and continues to serve as its CTO. Offchain Labs has raised $124M in capital and grown to more than 150 team members. The ARB token and Arbitrum DAO launched in 2023, transitioning the network to community governance.
Harry Kalodner has contributed to blockchain research beyond protocol development. He co-authored the BlockSci paper, presenting an open-source blockchain analysis platform, and co-authored a separate paper titled "When the cookie meets the blockchain," examining privacy risks associated with web payments made via cryptocurrencies. Both papers were published in 2017.
Harry Kalodner has accumulated 10,860 followers as of October 2026 and published 1,354 posts. He has been mentioned by 63 accounts, with 119 total mentions.
Who follows Harry Kalodner on X?
The accounts that follow Harry Kalodner include 495 founders, 165 angel investors, 158 influencers and 7 VCs. Among them are Toly, jesse.base.eth, ZachXBT, Laura Shin, Mert and Nic Carter.
