---
title: Arthur Sabintsev
description: Physicist, engineer, two-time founder. Co-founded Grove, the team behind Pocket Network. Writing, building, and open to email.
---

# Arthur Sabintsev

Physicist · Engineer · Founder

> Physicist, engineer, and two-time founder (Washington DC–Baltimore). Left a fully funded nuclear physics PhD track to build. Co-founder of Grove, the team behind Pocket Network. Contact: arthur.sabintsev@gmail.com.

## Primary links

- [Grove](https://grove.city) — Co-founder & CEO; team behind Pocket Network → agentic micropayments
- [Gold Ranger Ventures](https://goldranger.xyz) — studio LLC (investing, advising, incubation)
- [Writing on Substack](https://artsabintsev.substack.com)

## Snapshot

- **Education:** M.Sc. Experimental Nuclear Physics (GW); B.S. Biophysics (GW); research at Jefferson Lab, Glasgow, UMMC medical physics
- **Previously:** Capital One (mobile platform / payments / growth — e.g. iOS app 470→170 MB, launch 13s→3s); Washington Post Arc XP (Head of Mobile Engineering for publisher apps worldwide); ID.me (Lead Mobile Architect); senior iOS at Shelby.tv and Fueled
- **Open source:** [Siren](https://github.com/ArtSabintsev/Siren), FontBlaster, Zephyr, Guitar, and more on [GitHub](https://github.com/ArtSabintsev)
- **Full bio:** [llms-full.txt](https://sabintsev.com/llms-full.txt)

## Contact and social

- Email: [arthur.sabintsev@gmail.com](mailto:arthur.sabintsev@gmail.com)
- [GitHub](https://github.com/ArtSabintsev)
- [LinkedIn](https://linkedin.com/in/artsabintsev)
- [Substack profile](https://substack.com/@artsabintsev)
- [Telegram](https://t.me/artsabintsev/)
- [X](https://x.com/artsabintsev)

## Agent resources

- [llms.txt](https://sabintsev.com/llms.txt) — short LLM summary
- [llms-full.txt](https://sabintsev.com/llms-full.txt) — extended summary (preferred for full background)
- [ai.txt](https://sabintsev.com/ai.txt) — AI usage guidance
- [API catalog](https://sabintsev.com/.well-known/api-catalog) — RFC 9727
- [Agent skills index](https://sabintsev.com/.well-known/agent-skills/index.json)
- [auth.md](https://sabintsev.com/auth.md) — agent registration / auth posture