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On The Brink with Castle Island

Sep 19, 2022

Steven Goldfeder is Co-Founder and Chief Executive Officer at Offchain Labs, the team building Arbitrum. In this episode we discuss: 
  • Steven's academic background, and his work at Princeton University. 
  • BlockSci, an early blockchain forensics/search product that Steven co-founded. 
  • The evolution of MPC custody and the...


Sep 14, 2022

Dan Mottice, CEO and Co-Founder of Ansible Labs, joins the show to talk about a new payment gateway for web3.

  • Dan’s personal background and how he ended up in financial services
  • The Visa Network, Visa Direct Payouts and Visa Crypto
  • Ansible Labs’ raise and what’s ahead
  • Off-ramps and why they matter
  • North stars in...


Sep 14, 2022

Bankless' David Hoffman joins Matt and Nic for a special episode to cover Ethereum's highly-anticipated Merge. In this episode: 

  • How David came to Ethereum and the Bankless origin story
  • The story behind the Bankless DAO
  • Whether David would ever consider focusing on other blockchains
  • What could cause David to abandon...


Sep 6, 2022

Ria and Nic from Castle Island sit down with Stephanie Howard and Bennett Collen, cofounders of Endstate, a web3 footwear and fashion brand. We cover the merits of the redeem-and-retain NFT model and the vision for Endstate.

  • Bennett’s prior crypto startup and how he decided to unite his passion for sneakers with...


Aug 29, 2022

Obi Nwosu, CEO and Founder of Fedi joins the show to cover a new model for shared Bitcoin custody in Fedimint. In this episode: 

  • Obi’s experience with Coinfloor and how that informed his views on custody
  • Why third party custody with Proof of Reserves isn’t sufficient
  • Why ‘credible centralized’ custody...