
On The Brink with Castle Island
Hosts Matt Walsh and Nic Carter of Castle Island Ventures explore news and deals in the public blockchain space and talk to some of the leading experts in the industry. Learn more and stay up to date at CastleIsland.vc and follow on twitter @CastleIslandVC
Latest episodes

Jul 10, 2023 • 38min
Amir Haleem (Nova Labs) on Helium, DEPIN, and DeWi (EP.437)
Amir Haleem, the founder of Nova Labs (formerly named Helium, Inc) joins the show. In this episode we discuss: The origin of Helium and the Helium network Amir’s views on L1 blockchains and the path that the company took in evaluating building its own chain versus building on an existing L1. Decentralized Physical Infrastructure (DEPIN) and Decentralized Wireless (DEWI) as emerging categories demonstrating real-world applicability of public blockchains. The various tokens in the Helium ecosystem and how they interact. MVNOs and how Helium Mobile is positioned. The regulatory landscape in the United States and how Helium has navigated these waters. To learn more about Helium visit: helium.com/

Jul 7, 2023 • 39min
Weekly Roundup 07/07/23 (Taylor Swift’s FTX secret, XRP vs glazed donuts, ETF seeding) (EP.436)
Matt and Nic are back for more deals and news. In this episode: Matt’s plover rivalry Matt’s struggles against animals Taylor Swift actually did sign that partnership with FTX Are Eras tour tickets securities? Lightning in emerging markets Could we build the SR-71 today? How Ripple was 90% right about XRP being the bridge currency for remittances ETF applications hiccup More SAB121 issues Matt’s cigar snafu Why ETF seeding will be a source of buy pressure Sponsor notes: Coin Metrics’ State of the Network: Q2 2023 Wrap-Up In this issue of State of the Network, we provide a data-driven overview of the events that shaped digital asset ecosystem in Q2, 2023

Jul 3, 2023 • 46min
Jose Lemus (IBEX Mercado) on Lightning adoption in Emerging Markets (EP.435)
Jose Lemus, CEO and cofounder at IBEX Mercado, joins the show to talk Lightning and its growing usage in emerging markets. In this episode: The origins of IBEX How IBEX clients are using LN in emerging markets How Lightning as a settlement layer for cross-border interbank payments Lightning as a bridge currency Why stablecoins make sense on Lightning Why EM firms have an affinity for Lightning IBEX’s partnership with Grupo Salinas and how they are introducing Lightning to Mexican households Lightning as an emerging remittance tool Why Mexico is a good fight for Lightning adoption Is Jose satisfied with Lightning’s maturity as a protocol How Bitcoin’s market cap is the ultimate bandwidth for Lightning Why Lightning reimagines the established batched payments model Jose’s answer to the biggest critique of Lightning at present Further reading: Learn more about IBEX IBEX’s partnership with Salinas Group

4 snips
Jun 30, 2023 • 41min
Weekly Roundup 06/30/23 (ETF frenzy continues, Prime Trust insolvency, how Stablecoins are like Eurodollars) (EP.434)
Matt and Nic return for another week of news and deals. In this episode: The problem with SEC SAB 121 Pickleball is driving up American healthcare costs Microstrategy buys some more Bitcoin Fidelity refiles their Wise Origin Bitcoin ETF Why the Prime Trust insolvency is so bad Will there be Prime Trust clawbacks? The SEC is slacking with their document retention policies How stablecoins are mirroring the development of eurodollars How Prometheum’s listing strategy might pose a risk to certain cryptoassets The UK law commission determines that digital assets are a new kind of “thing” Content mentioned in this episode: SEC Staff Bulletin 121 Odd Lots, Josh Younger on the Surprising Origins of Eurodollars and Petrodollars Laura Shin Podcast, Paradigm debates Prometheum The UK Law Commission: Final Report on Digital Assets Sponsor notes: Coin Metrics’ State of the Network: Bitcoin & the Rest In this issue of State of the Network, we assess Bitcoin’s resurgence and gauge market sentiment amidst a rapidly evolving digital asset landscape marked by regulatory ambiguity and external macro events.

Jun 23, 2023 • 40min
Weekly Roundup 06/23/23 (FTX and K5 clawbacks, Prime Trust chaos, ETF frenzy) (EP.433)
Matt and Nic are back for another week of news and deals. In this episode: Bitcoin hits 30k Wyoming’s stable token developments The story behind FTX’s mammoth $500m outflow to K5 global Why was SBF spending hundreds of millions cozying up to talent agents? Do Kwon will spend 4 months in jail in Montenegro The Bitgo Prime Trust acquisition falls apart Deutche Bank applies for a crypto license in Germany EDX officially launches Blackrock files for their ETF and others follow Our theory for why Blackrock is filing now Is the SEC back-channeling to Blackrock? Was surveillance sharing really a blocker for other ETF applications? Does the notion of spot market surveillance even make sense for a global commodity? What’s the deal with the Bitcoin bathhouse in Brooklyn? Sponsor notes: Coin Metrics STATE OF THE NETWORK - The Signal & the Nonce, Re-imagined In this issue of State of the Network, we showcase a novel analysis that sheds light on Bitcoins energy consumption, efficiency and e-waste

Jun 19, 2023 • 54min
Chris Rothfuss on Wyoming’s Blockchain Strategy & the WY Stable Token (EP.432)
Wyoming state senator and Minority Floor Leader in the Wyoming Senate, Chris Rothfuss joins the show. We cover Wyoming’s crypto efforts to date to create a stable and secure digital asset ecosystem. In this episode: Senator’s Rothfuss’ pre-politics career and how he came to grapple with the crypto space Why Wyoming has an opportunity in digital asset policy The origins of Wyoming’s blockchain select committee How the NY Bitlicense inspired Wyoming’s efforts Why crypto policy isn’t politically polarized in Wyoming Wyoming’s foundational move to recognize digital assets under the uniform commercial code The origin of the SPDI charter Is there a future for the SPDI given that the Fed is denying master accounts? How Wyoming’s SPDI emerged as a consequence of Chokepoint 1.0 Is the Fed blocking state charters unconstitutional? Wyoming’s Stable Token Act and the prospects for that product How the WY Stable Token could be a huge windfall for Wyoming – and where the revenues would be directed How Wyoming is thinking about the permissionless qualities of the stable token Further reading: More about Chris Rothfuss More on the Blockchain Select Committee The Wyoming Stable Token Act

Jun 16, 2023 • 36min
Weekly Roundup 06/16/23 (Prometheum madness, the Hinman emails, HK’s crypto banking play) (EP.431)
Matt and Nic are back for another week of news and deals. In this episode: Coin Metrics derives new estimates of Bitcoin’s electricity consumption Nic reviews his Lasik experience Matt takes Prometheum to task Is Prometheum a patsy for the SEC? Why is vaporware being elevated by the SEC and major exchanges being stymied? We digest the Hinman emails and what they mean for ETH and XRP What do the Hinman emails mean for the SEC’s The SEC attempts to make DeFi protocols register as exchanges Blackrock is about to file a renewed application for a Bitcoin ETF Reps Davidson and Emmer’s SEC Stabilization Act Hong Kong is pressuring banks to service crypto firms Coindesk gets their hands on the NYAG’s Tether reports Abra is in trouble Sponsor notes: Coin Metrics STATE OF THE NETWORK - The Signal & the Nonce, Re-imagined In this issue of State of the Network, we showcase a novel analysis that sheds light on Bitcoins energy consumption, efficiency and e-waste

Jun 10, 2023 • 44min
Weekly Roundup 06/09/23 (SEC v Coinbase and Binance, Market Structure bill, the curious case of Prometheum) (EP.430)
Matt and Nic return for another week of deals and news. In this episode: Token disclosure practices Matt tries pickleball Sequoia is breaking up into parts Will Chinese and American capital markets be severed? What’s in the proposed House market structure bill? Coinbase sues Coinbase and Binance How does the SEC think BUSD is a security? The SEC approves Prometheum as a crypto broker dealer Prometheum’s CCP ties Did Gensler solicit Binance to advice them before he ran the SEC? What’s going on with Prime Trust? Content mentioned: Tommy Tuberville in the WSJ, Crypto communism has a new meaning Sponsor notes: Coin Metrics STATE OF THE NETWORK - Token Unlocks & Free Float Supply Shocks in Digital Asset Markets In this issue of Coin Metrics’ State of the Network, we analyze the impact of token unlocks and free float supply shocks through the lens of various unlock events to explore the behavior of participants under different market conditions

Jun 5, 2023 • 1h 1min
Lili Infante (CAT Labs) on Combating and Preventing Crypto Crime (EP.429)
In this episode, we sat down with Lili Infante, Founder and CEO of CAT Labs. Lili shared: Her experience spearheading the formation of the crypto taskforce at the DOJ How the crypto-enabled crime landscape has evolved and become more sophisticated Investigating cases where crypto is used and the unique challenges in establishing a chain of custody Products CAT Labs is building to more effectively recover digital assets and protect against situations where assets are compromised in the first place Learn more about Cat Labs in Fortune and on their website.

Jun 2, 2023 • 33min
Weekly Roundup 06/02/23 (Crypto-eurodollars, SBF's defense, debt ceiling debate) (EP.428)
Matt and Nic are back for another week of news and deals. In this episode: The debt ceiling debate is resolved What happened to Paxos’ / Paypal’s stablecoin? Offshore dollar stablecoins are growing while onshore stablecoins are shrinking Stablecoin policy in the US is backfiring USD stables issued out of Hong Kong Tether reaches a new all time high The bad boys are back SBF’s defense will reportedly claim he got bad advice from Fenwick Farenheit wins the bid for the Celcius assets Why Celcius’ mining operation was a big red flag What does CZ mean by 4? Sponsor notes: Coin Metrics STATE OF THE NETWORK - Zooming Out: A datonomy update In this issue of Coin Metrics’ State of the Network, we leverage datonomy—a classification system for digital assets to zoom out and gauge the ecosystem and its underlying trends from a broader lens. Despite a slew of challenges over years, we explore how the market has shown resilience through an analysis of market returns, volatility and volumes across sectors.
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