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Ethan Vera and Guzman Pintos (Luxor) on Mining Data and Analytics (EP.274)

On The Brink with Castle Island

Release Date: 01/03/2022

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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Weekly Roundup 05/16/25 (GENIUS is back, Coinbase data breach, Big Tech stables) (EP.625) show art Weekly Roundup 05/16/25 (GENIUS is back, Coinbase data breach, Big Tech stables) (EP.625)

On The Brink with Castle Island

Matt and Nic are back with another week of news and deals. In this episode: Why is Boston such a good sports city? Price inflation in dinosaur skeletons Cryptopunks IP is sold Machinsky is sentenced Nakamoto Holdings launches Meta wants to add stablecoins to its platforms Exchanges are honeypots for KYC data Coinbase suffers a data breach The GENIUS act is going to a vote next week GENIUS act new provisions More Movement shenanigans Thailand is launching a $150m crypto token Content mentioned in this episode: Tuongvy Le and Austin Campbell published a paper, "", which...

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Alex Cutler (Aerodrome) on DeFi’s Next Steps (EP.624) show art Alex Cutler (Aerodrome) on DeFi’s Next Steps (EP.624)

On The Brink with Castle Island

Wyatt sits down with Alex Cutler, founder of for another episode in our stablefi series. In this episode:  DEX trading advantages Building on-chain FX DeFi as a backbone

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TN (Pendle) on Stable Yield (EP.623)  show art TN (Pendle) on Stable Yield (EP.623)

On The Brink with Castle Island

Wyatt sits down with TN, cofounder of . Covered in this episode:  How Pendle works The evolution from alt yield to stable yield DeFi's future core assets

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Weekly Roundup 05/09/25 (GENIUS stalls, Coinbase buys Deribit, Bessent on stables) (EP.622) show art Weekly Roundup 05/09/25 (GENIUS stalls, Coinbase buys Deribit, Bessent on stables) (EP.622)

On The Brink with Castle Island

Matt and Nic are back with another week of news and deals. In this episode: We have a new Pope The etymology of ampersand The GENIUS act collapses spectacularly Coinbase consummates its acquisition of Deribit Did World Liberty Financial’s USD1 torpedo the GENIUS act? Did “pro crypto” democrats snake on the industry Scott Bessent thinks stablecoins could reach $2T The OCC says banks can provide crypto custody and execution Stripe is launching stablecoin financial accounts The SEC explores a sandbox for tokenized securities Tariff the L2s

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More Episodes

Luxor COO and CPO Ethan Vera and Guzman Pintos join the show to talk about their relaunched data product, Hashrate Index and other trends in mining. In this episode: 

  • The history of the firm
  • Why Luxor created the hashrate index
  • How Luxor gathers data on ASIC pricing and creates their time series charts
  • ASIC pricing dynamics
  • Are sell side analysts correctly pricing ASICs on the balance sheets of public miners?
  • Why different efficiencies of miners have traded differently in the last 2 months
  • How constraints on rack space affect the demand for older ASICs
  • Why so many ASICs can’t leave China
  • Is there still residual black market mining in China?
  • Kazakhstan’s under-reported mining crackdown
  • Are ASIC development cycles slowing?
  • Are miners still front-running their clients with prop mining?
  • Are Bitcoin miners trying to acquire Bitcoin or do they want to hedge their exposure
  • Are derivatives becoming more popular among miners?
  • The maturation of the Bitcoin mining derivatives market
  • Why prior hashrate derivatives haven’t worked
  • Multiple based analysis for public miners
  • Why there is a ‘public market arbitrage’ for miners
  • Why incentives exist for public miners to be highly acquisitive
  • Do miners care about long term fee budget?

Sponsor notes:

  • Compass Mining is the world's first and largest online marketplace for bitcoin mining hardware, hosting, and ASIC reselling. Start mining your own bitcoin by visiting compassmining.io