

Built on Bitcoin with Jacob Brown
Jake
Interviews with the best founders building on Bitcoin. Jacob takes an open-minded approach and talks with builders from all corners of the Bitcoin ecosystem.
Episodes
Mentioned books

Mar 21, 2024 • 59min
Anduro: A Bitcoin Sidechain Ecosystem with Jullian Duran - Product Lead at Marathon Digital Holdings
The halving is right around the corner. Miners have to adapt to the revenue reduction and stay profitable. That's what we're talking about today with a new initiative Marathon, a large public Bitcoin miner, is starting called Anduro. Creating an ecosystem of sidechains with Bitcoin at the center.
Follow Jullian on Twitter: @jullian0701
Check out MARA: https://www.mara.com/
Learn more about Anduro: https://www.anduro.io/

Mar 18, 2024 • 51min
Bitcoin Kickback Show: BRC20 "2.0" vs Runes, OPI Indexer Upgrades, How Runes Transfers Work
Latest Bitcoin Kickback chat with the gang!
We discuss:
- Charlie Spears joins Blockspace Media
- OPI Indexer Upgrades
- BRC20 "2.0" vs Runes
- How Runes Transfers Work
- Long-Term Viability of Fungible Tokens on L1

Mar 1, 2024 • 42min
Rootstock in Bitcoin Season 2 with Daniel Fogg - CEO of IOV Labs
Rootstock is an OG of the Bitcoin L2 space. They were the earliest in the market to focus on merge mining, EVM compatibility, and Bitcoin DeFi. In this interview, Daniel talks about the growth and what is happening within the Rootstock ecosystem as we go into this 2024-2025 cycle.
Curious where Bitcoin L2s are going?
You'll want to listen to this one.
Follow Daniel on Twitter: @danielfogg
Learn more about Rootstock: https://rootstock.io/

Feb 23, 2024 • 48min
Mercury Layer: Statechains Explained with Nicholas Gregory - Co-Founder of Mercury Layer
Scaling Bitcoin is hard. Statechains are one potential way to scale it in a cheap and private way with minimal people to trust. Nicholas and his team at Mercury Layer are at the bleeding edge of developing Statechains.
Follow Nicholas on Twitter: @gregory_nico
Learn more about Mercury: https://mercurylayer.com/

Feb 19, 2024 • 58min
Bitcoin Weekly Chat - Merlin Chain, Runes, Universal Bitcoin Symbol
The usual suspects of Charlie, Donny, Bob and I discuss latest Bitcoin topics:
- Merlin Chain. New Bitcoin L2.
- Latest Runes Alpha
- The Universal Bitcoin/Sats Symbol
- EVMs as Bitcoin sidechains
- Rootstock as the best EVM sidechain
Follow Charlie: https://twitter.com/cbspears
Follow Donny: https://twitter.com/itsdonnyok
Follow Bob: https://twitter.com/BobBodily
Follow Jake: https://twitter.com/JakeBlockchain

Feb 16, 2024 • 52min
Non-Custodial Multi-Layer Swaps with Kilian - Co-Founder of Boltz Exchange
Moving from chain to chain is a pain in the ass. Layer on custodian risk and this area is ripe for better solutions. That was Boltz is working on with their non-custodial cross-chain/multi-layer swaps from different Bitcoin focued chains. Kilian is the co-founder of Boltz.
We discuss:
- How he got into Bitcoin?
- The benefits of building things non-custodial
- Using L2s to solve Lightning scaling problems
and much more!
Follow Kilian on Twitter: @kilrau
Check out Boltz at https://boltz.exchange/

Feb 7, 2024 • 49min
BitVM meets ZK Rollups on Bitcoin with Orkun Kilic - Co-Founder of Citrea
Orkun Kilic, Co-Founder of Citrea, discusses the potential of ZK Rollup tech and BitVM to scale Bitcoin. Topics include roll-ups vs sidechains, the role of ZK proofs, becoming a verifier in the VQIA construction, settlement process, economic incentives in ZK rollups, and building on Citrea for compatibility with Bitcoin's security.

Feb 2, 2024 • 54min
Rollups on Bitcoin, BitVM Bridges and Finding Consensus with Bob, Charlie, & Donny
In this open-format chat. Charlie Spears, Donny, Bob Bodily, and myself discuss a few interesting topics including:
- How close ZKrollups are to coming to Bitcoin
- Building better bridges for L2s with BitVM
- The Taproot Wizards BIPLand
- Finding consensus for upgrades in 2024
You will definitely learn something in this one.

Nov 17, 2023 • 42min
Is The Seed Phrase Era Over? with Louise Ivan - CEO & Co-Founder of Ryder Wallet
"Is The Seed Phrase Era Over?" features Louise Ivan, CEO & Co-Founder of Ryder Wallet. They discuss the limitations of seed phrases and the new experience Ryder is creating for securely managing digital assets. They explore their journey into crypto, the potential of web three, creating a hardware wallet, and the lack of information for hardware startups. This episode invites Bitcoin builders to reach out for support and stay updated on the exciting Ryder Wallet.

Oct 14, 2023 • 57min
E125: RGB Deep-Dive & Scaling Bitcoin with Hunter Beast - Director of Engineering at DIBA
What is RGB? That is the question we are answering today. RGB is an off-chain solution that brings smart contracts to Bitcoin. It's a radically different approach to the global-state blockchains we're used to. Hunteris the Director of Engineering at DIBA. They are building a bleeding-edge wallet and platform to operationalize the RGB protocol. Tune in, there's a lot to cover.
Follow Hunter on Twitter: @cryptoquick
Learn more about DIBA: https://diba.io/
Try BitMask wallet: https://bitmask.app/
Learn more about RGB: https://rgb.info/