Steven Roose (CEO of Second) rejoins me to explain Bark going live on Bitcoin’s main net.

Timestamps:

(00:00) - Bark mainnet launched on June 9th

(02:01) - Bark and Lightning onboarding

(03:30) - Ark compared to Lightning — replacement or teammate?

(04:15) - User experience with Bark

(05:54) - Developer experience with Bark SDK

(08:04) - Barkd for merchants and services

(08:56) - Dev tooling and VTXO Inspector

(10:40) - What's the current status of adoption and what's coming next?

Fees?

(13:25) - Tx type overview

Links:

• https://second.tech/

• https://x.com/stevenroose3

• https://x.com/secondhq

Stephan Livera links:

• Follow me on X: @stephanlivera

• Subscribe to the podcast

• Subscribe to Substack

In this episode, NG Zhang, founder and CEO of Canaan Inc., shares his journey in Bitcoin mining technology, from early ASIC development to modern innovations like heat reuse and energy integration. We talk about the evolution of mining hardware, industry trends, and future prospects.

Timestamps:

(00:00) – Intro and Early Days of Bitcoin Mining

(03:40) – From FPGA to ASIC Technology

(06:22) – The Avalon A16 Series

(09:07) – Reliability and Durability of Mining Machines

(12:15) – Failure Rates and Useful Life

(14:40) - Primary Market and Secondary Market for Mining

(16:40) – Small Scale vs. Large Scale Mining

(22:00) - What % is home mining today?

(23:00) - Heat Recovery

(29:00) - Different methods of cooling in Bitcoin Mining

(31:40) - Mining machine form factor

(32:40) - Stratum V2 Support?

(37:35) - Market Dynamics: Public vs. Private Miners

(39:50) – Energy Grid Integration and Bitcoin Mining

(44:25) - Efficiency gains are slowing down in bitcoin mining

Links:

• https://www.canaan.io/

Stephan Livera links:

• Follow me on X: @stephanlivera

• Subscribe to the podcast

• Subscribe to Substack

In this episode, I caught up with Will Cole from Zaprite, Alex Bragin (Jan3), Nathan Day from BTCMap, Philipp (Satora), and Skot 9000 (BitAxe/SHA256) while at BTC Prague 2026.

Timestamp:

(00:00) – Interview with Skot9000 of (SHA256)

(09:01) – Interview with Alex Bragin of JAN3

(20:35) – Interview with Will Cole of Zaprite

(28:45) – Interview with Philipp of Satora.io

(39:33) – Chris Seedor of Seedor.io

(46:23) – Nathan Day of BTCMap

Links:

• Philipp: https://x.com/bonomat

• Chris: https://x.com/coinjoined

• Will Cole: https://x.com/willcole

• Alex: https://x.com/BraginRights

• Skot9000: https://x.com/skot9000

• Nathan Day: https://x.com/nathan_day

• JAN3: https://x.com/JAN3com

• BTCMap: https://x.com/BTCMap

• Satora: https://x.com/satora_io

• Zaprite: https://x.com/ZapriteApp

• SHA256: https://x.com/sha256

• Seedor: https://x.com/seedor_io

Stephan Livera links:

• Follow me on X: @stephanlivera

• Subscribe to the podcast

• Subscribe to Substack