Josibake joins us to talk about his work on the Bitcoin Core wallet, bitcoin data and onboarding to bitcoin development.

We discussed:

- Analyzing historical transaction data (1:25)

  - Creating a publicly available dataset (4:12)

  - What could it be used for? (7:30)

- Bitcoin Core wallet (9:00)

  - Why have a wallet in Bitcoin Core? (10:00)

  - Separation of GUI from wallet (12:35)

  - Only use one input type when building transaction (13:40)

    - PR #24584 in Bitcoin Core

  - How is working on the wallet? (17:15)

- Cross-input signature aggregation (19:48)

  - Catching up on history (20:40)

  - Writing the BIP with Hackspec (22:05)

  - Thoughts on shipping cross-input signature aggregation separately (22:50)

- Onboarding to Bitcoin development (28:35)

  - Running the seminar with friends (29:55)

  - Giving back to open source (31:20)