Jeremy Rubin on Char: The Infrastructure Bet Underneath Every Bitcoin L2

Jeremy Rubin on Char: The Infrastructure Bet Underneath Every Bitcoin L2

From Bitcoin Magazine Podcast by BTC Media

June 1, 2026 · 20 min

About this episode

Jeremy Rubin discusses the Char Network and its role in decentralizing Bitcoin Layer 2 transaction sequencing.

Every Bitcoin Layer 2 quietly depends on a trusted operator to order transactions and that's the single point of failure Jeremy Rubin wants to kill. In this MIT Bitcoin Expo conversation with Bitcoin Magazine's Shinobi, Rubin breaks down Char Network, a decentralized shared sequencer that lets anyone participate like a miner. He explains how staked Bitcoin gets burned the moment a participant cheats, and why anchoring proof of stake to Bitcoin avoids the pitfalls of standalone PoS chains. Grab your copy THE 2036 ISSUE👇https://store.bitcoinmagazine.com/pages/the-2036-issue 🔶 Shinobi — Bitcoin Magazine 🔶 Jeremy Rubin — Founder & CEO, Char Network Chapters: 00:41 — Who is Jeremy Rubin and what is Char Network 02:26 — The sequencing problem inside Bitcoin Layer 2s 03:49 — Decentralizing the trusted bridge operator 05:54 — Equivocate and your staked Bitcoin gets burned 08:09 — Long-range attacks vs Bitcoin-anchored security 10:47 — Signatures, the torus, and exposing private keys 14:06 — The hunt for a VRF and discovering eVRFs 15:33 — MuSig, deterministic nonces, and the Purify library 18:11 — Garbled circuits and a Bitcoin behind every blade of grass #Bitcoin #BitcoinLayer2…

People in this episode

Host: Shinobi

Guest: Jeremy Rubin

Topics covered

  • Bitcoin Layer 2
  • decentralization
  • transaction sequencing
  • proof of stake
  • Char Network

Keywords

  • Bitcoin
  • Layer 2
  • Char Network
  • decentralized sequencer
  • proof of stake
  • transaction ordering
  • Bitcoin staking
  • equivocation
  • long-range attacks

Mentioned in this episode

Organizations: Char Network, Bitcoin Magazine, MIT Bitcoin Expo

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