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BITCOIN SEASON 2: How To Beat Coinbase On-chain w/ Flashnet’s Ethan Marcus

CoinDesk Podcast Network

CoinDesk

Business News, News, Daily News, Tech News

4.7698 Ratings

🗓️ 10 September 2025

⏱️ 35 minutes

🧾️ Download transcript

Summary

Flashnet CEO Ethan Marcus breaks down Bitcoin’s on‑chain trading, fee wars, stablecoin hurdles, and why Spark aims to outpace Lightning—all in under 35 minutes. Flashnet CEO Ethan Marcus joins us to discuss Bitcoin’s scaling landscape, on‑chain spot markets, the challenges of stablecoins, and how Spark’s signing protocol offers a fast, cheap alternative to Lightning. He also shares candid lessons from a $300 k load test and his vision for Bitcoin‑native finance. Subscribe to the newsletter! https://newsletter.blockspacemedia.com Notes:     Coinbase charges ~70 bps per trade.     Spark handled $300 k in 9 min during beta.     Bitcoin spot volume ≈ $20‑30 trillion yr.     Lightning’s fee‑free stablecoin rollout deemed “disaster”.     Spark’s operator model uses threshold signatures.     Braille’s USD‑BTC stablecoin launches on Spark. Timestamps: 00:00 Start 01:52 Is Flashnet crypto or fintech? 02:23 What is Spark? 03:25 Role of the Operator 05:06 Like a State Chain but different 06:50 Spark idea origins 08:54 Flashnet 11:08 Why not build on Lightning? 12:16 Hyperliquid 15:00 How does Spark fit into BTC scaling? 16:30 Why use a DEX? 18:38 Evolution of on-chain exchanges 20:35 Braille & stablecoins 21:58 RGB & other protocols 24:15 Park launch troubles 26:16 Degens lend a helping hand 28:08 Corporate chains 30:21 Single sequencer = server 32:09 Zero Day 33:08 Innovations in BTC - 👋Bitcoin Season 2 is produced Blockspace Media, Bitcoin’s first B2B publication in Bitcoin. Follow us on Twitter and check out our newsletter for the best information in Bitcoin mining, Ordinals and tech! Enjoy the show? Check out our website and newsletter by clicking here. Questions or want to sponsor? hello@blockspace.media

Transcript

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0:00.0

If you just want to buy Bitcoin, let's say you want to buy Bitcoin with Stablecoin or Trade Spot B-T-USD, it's really a question of fees. Coinbase will scalp you, 70 bibs for a trade. Whatever whatever value you're trying to trade, you're getting scowl. Trading on Binance, a little bit better. Cracking, kind of the same. Like, these exchanges don't have any pushback because there is no optionality, right? Like, it's not like Bitcoiners can just pack up and be like, all right, I'm going to go somewhere else. There is nowhere else. So I think for them, it's a question of fees, right? If you lower the barrier entry and any market can define its own fees, then it's a question of where liquidity is parked. And I can go on chain and buy Bitcoin

0:38.2

for 20-30 bibs. It depends on what market you're trading on, right? The second is, you know,

0:43.2

these Bitcoin native assets. So I'm not in the Bitcoin world. I'm starting to be the defy

0:49.7

opportunity for Bitcoin is huge, right? There's this latent value that's waiting to do more and

0:55.0

and kind of deploy. We've seen it with ordnals, versus 20s, ruins. There's clearly a lot of

1:00.6

excited. I mean, we've even seen it with Odin fund doing, you know, however many million

1:04.6

dollars in volume since relaunch after getting hacked. It's insane. People have an appetite

1:09.0

for this. And we're enabling exactly

1:12.1

that at, you know, a lower trust vector. So it's about really lowering the floodgates and

1:17.9

enabling Bitcoin to trade.

1:25.7

Welcome back to Bitcoin's season two. I have CEO of FlashNet, Ethan Marcus, with me on the show. Welcome to Bitcoin Season 2, Ethan.

1:34.4

I appreciate it. Thanks for having me. So you guys raised, if I'm looking at this correctly, at the beginning of this year, 25, and also the year, you know,

1:44.4

a raise led by like

1:46.0

who's who of the fintech and capital markets,

1:49.7

including Blockspace's own,

1:51.4

Whart.

1:52.4

Because my first question is,

1:54.4

as a modern era of Bitcoin,

1:57.1

do you think of flashing at your company as being

1:59.7

a like Bitcoin or crypto company or more like a fintech company?

2:05.3

I see this as a Bitcoin company.

2:06.7

I think that there's a fine line between, you know, what is Bitcoin?

...

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