{"podcast":{"title":"21 in 21","slug":"21-in-21-7274084","podcast_index_feed_id":7274084,"rss_url":"https://feeds.fountain.fm/225QxxaXdKbEEjEXSha3","website_url":"https://presidiobitcoin.substack.com/s/21-in-21","image_url":"https://feeds.fountain.fm/225QxxaXdKbEEjEXSha3/files/COVER_ART---DEFAULT---4727f3af-abd6-40e2-a3a8-34e875d55259.jpg","author":"Hosted by Haley Berkoe","episode_count":35,"summary":"Haley Berkoe asks some of the biggest names in bitcoin and Silicon Valley 21 questions in 21 minutes, from the personalities you know and love to tech’s unsung heroes. A new episode drops when someone stops by Presidio Bitcoin. Reach out if you are or will be in the area and are interested in being on the show. presidiobitcoin.substack.com","last_synced_at":null,"page_url":"https://stenobird.com/podcast/21-in-21-7274084"},"episode":{"title":"21 in 21: David Gumberg on the Chaincode ₿OSS Challenge and Becoming a Bitcoin Core Contributor","slug":"21-in-21-david-gumberg-on-the-chaincode-oss-challenge-and-becoming-a-bitcoin-core-contributor","published_at":"2025-12-17T14:00:25+00:00","page_url":"https://stenobird.com/podcast/21-in-21-7274084/21-in-21-david-gumberg-on-the-chaincode-oss-challenge-and-becoming-a-bitcoin-core-contributor","show_page_url":"https://stenobird.com/podcast/21-in-21-7274084","url":"https://feeds.fountain.fm/225QxxaXdKbEEjEXSha3/items/BX2Rj9hTzyH8BYDSB2W9/files/AUDIO---DEFAULT---c162188e-6c96-42cf-b90b-7d9e689295c0.mp3","audio_url":"https://feeds.fountain.fm/225QxxaXdKbEEjEXSha3/items/BX2Rj9hTzyH8BYDSB2W9/files/AUDIO---DEFAULT---c162188e-6c96-42cf-b90b-7d9e689295c0.mp3","summary":"Haley Berkoe sits down with David Gumberg, a Bitcoin Core contributor at Localhost , a bitcoin-focused research center in the Bay Area. David shares how he got into bitcoin, what pushed him from curiosity to contribution, and how completing the Chaincode ₿OSS Challenge in 2024 helped him make the leap to contributing to Bitcoin Core full time. They also dig into what he’s focused on now in Core: Compact Block Relay, block propagation times, and why improving network latency can make mining more fair for smaller miners. bosschallenge.xyz (applications due Dec 31) github.com/davidgumberg x.com/ChaincodeLabs x.com/lclhostresearch x.com/HBerkoe","meta_description":"Haley Berkoe sits down with David Gumberg, a Bitcoin Core contributor at Localhost , a bitcoin-focused research center in the Bay Area. David shares how h…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1387,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/21-in-21-7274084/episodes/21-in-21-david-gumberg-on-the-chaincode-oss-challenge-and-becoming-a-bitcoin-core-contributor/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/21-in-21-7274084/21-in-21-david-gumberg-on-the-chaincode-oss-challenge-and-becoming-a-bitcoin-core-contributor.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}