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Weekly News Roundup 5/8/20 (Paul Tudor Jones, the stablecoin invasion, Cash App's Q1) (EP.77)

On The Brink with Castle Island

Release Date: 05/08/2020

Santi Alvarado (XFX) on Improving FX for Stablecoins (EP.635) show art Santi Alvarado (XFX) on Improving FX for Stablecoins (EP.635)

On The Brink with Castle Island

Sean is joined by Santi Alvarado, CEO/Co-Founder of , to cover their seed raise and how money moves cross border. In this episode:  Background of Santi and how he made his way into crypto How legacy FX settlement operates today How XFX enables more liquidity for cross border payment companies

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Greg Genega (KPMG) on Crypto Auditing (EP.634) show art Greg Genega (KPMG) on Crypto Auditing (EP.634)

On The Brink with Castle Island

Wyatt is joined by , Digital Asset and Blockchain leader at KPMG, for a conversation on the state of crypto auditing. In this episode:  How KPMG works with crypto companies and protocols Relevant new innovations in the crypto space What to look out for as a new founder

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Weekly Roundup 06/13/25 (Stripe buys Privy, Stablecoin FUD, Rogue Traders) (EP.633) show art Weekly Roundup 06/13/25 (Stripe buys Privy, Stablecoin FUD, Rogue Traders) (EP.633)

On The Brink with Castle Island

Matt and Nic are back for another week of news and deals. In this episode:  Stripe acquires wallet infrastructure company Privy for an undisclosed sum Fireblocks’ stablecoin data Stablecoin FUD Were mnemonic phrases a local maxima? Bullish and Gemini have filed preliminary paperwork for IPOs Soc Gen is launching a USD stablecoin We look at some infamous rogue traders Gamestop’s bitcoin strategy is a flop DTCC is looking at issuing a stablecoin

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Weekly Roundup 06/06/25 (Circle IPO, Singapore rules, Trump wallet?) (EP.632) show art Weekly Roundup 06/06/25 (Circle IPO, Singapore rules, Trump wallet?) (EP.632)

On The Brink with Castle Island

Matt and Nic are back for another week of news and deals. In this episode:  Circle goes public and has an explosive first day The IPO window is open Circle’s vision for CPN is launching a token Will cannibalize Solana? JPM will let clients use Bitcoin ETFs as collateral Strategy introduces new offerings Magic Eden’s strange Trump wallet app announcement Truth Social Bitcoin ETF A K Pop Bitcoin access vehicle Korea’s cultural renaissance Singapore’s abrupt change in posture

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Isha Varshney (Celo) on Stablecoin Adoption Across Markets (EP.631) show art Isha Varshney (Celo) on Stablecoin Adoption Across Markets (EP.631)

On The Brink with Castle Island

Wyatt sits down with from the to talk stablecoins. Covered in this episode: Payments in Kenya and Sub-Saharan Africa Stablecoin usage and USDT The future of non-stable tokens

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Weekly Roundup 05/30/25 (Bitcoin Access Vehicles, GME buys BTC, Pangea Fund) (EP.630) show art Weekly Roundup 05/30/25 (Bitcoin Access Vehicles, GME buys BTC, Pangea Fund) (EP.630)

On The Brink with Castle Island

Matt and Nic are back with another week of news and deals. In this episode:  Warning signs for the Bitcoin access vehicles? Has Bitcoin lost the MoE battle? Is OCP 2.0 over? The Dept of Labor rescinds their anti-crypto 401k guidance Cantor Fitzgerald is launching a bitcoin/gold fund Is it mathematically possible to give Bitcoin upside and gold downside? Content mentioned: 

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Anthony Yim (Artemis) on Stablecoin Payments from the Ground Up (EP.629) show art Anthony Yim (Artemis) on Stablecoin Payments from the Ground Up (EP.629)

On The Brink with Castle Island

We sit down with Anthony Yim, cofounder, to talk about the from Artemis, CIV, and Dragonfly, providing brand new estimates of stablecoin payments volume. In this episode: Why we decided to work on the new report How we obtained the estimates Why we decided to put together a bottom-up estimate Stablecoin b2b volumes compared to traditional b2b How do you measure stablecoin transactions? Download the report at

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Markus Franke and Denney Kwok (Mento Labs) on Stablecoins for FX (EP.628) show art Markus Franke and Denney Kwok (Mento Labs) on Stablecoins for FX (EP.628)

On The Brink with Castle Island

and from join the show. In this episode:  Non-USD stablecoins On-chain FX Microlending and financing for emerging markets

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Weekly Roundup 05/23/25 (Genius Cloture, Sui hack, $Trump dinner) (EP.627) show art Weekly Roundup 05/23/25 (Genius Cloture, Sui hack, $Trump dinner) (EP.627)

On The Brink with Castle Island

Matt and Nic are back for another week of news and deals. In this episode:  Trump’s crypto dinner reviewed Bitcoin access vehicles NYT stablecoin coverage Sui is hacked and censors the blockchain Kraken is launching tokenized stocks Circle in acquisition talks The GENIUS Act passes Cloture in the Senate Hong Kong passes stablecoin legislation

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Andrew MacKenzie (Agant) on British Pound Stablecoins (EP.626) show art Andrew MacKenzie (Agant) on British Pound Stablecoins (EP.626)

On The Brink with Castle Island

Wyatt sits down with , founder of  the issuer of GBPA, a pound sterling stablecoin. In this episode:  The potential emergence of non-USD stablecoins The prospect of a GBP-backed stablecoin The British crypto regulatory environment How global financial institutions are positioning around stablecoins

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More Episodes

Matt and Nic review the top stories of the week in the cryptoasset industry. This week’s topics include:

  • Renowned commodities investor Paul Tudor Jones announces his intent to trade Bitcoin and releases a Bitcoin thesis
  • NEAR protocol gets funded
  • Are fair launches dead?
  • The under-appreciated merit of PoW issuance
  • Libra's new CEO hire
  • Wyoming's Special-Purpose Depository Institution legislation
  • The privacy-auditability tradeoff in blockchains
  • Whether the growth of stablecoins threatens the security model of public blockchains
  • Thoughts on the imminent halving
  • Our guess of who the next high profile hedge fund investor will be to flip bullish on Bitcoin