Thomas Voegtlin: Blocksize, Bitcoin Unlimited, ASICBoost and Activating SegWit (Episode 179)
Channel: Epicenter Podcast
Date: 18/04/2017

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Years into the great Bitcoin scaling debate no solution is in reach. Neither bigger blocks nor Segregated Witness have anywhere near consensus support. With the conflict escalating, a Bitcoin fork has become a real possibility.

Electrum Developer Thomas Voegtlin joined us to discuss the state of the Bitcoin scaling debate. We discussed Bitcoin Unlimited, ASICBoost, SegWit activation without miner support and how a Bitcoin fork could play out. Possible outcomes include that Bitcoin Unlimited gains a majority of hashing power and starts mining bigger blocks. In the event of a fork, a proof-of-work change could be done to defend the minority chain from miner attacks. And lately a proposal was brought forward to activate SegWit without the support of the hashing power.

Topics discussed in this episode:
- ASICBoost and its potential role in the conflict
- How a Bitcoin fork could happen
- How to split coins in case of a fork
- How UASF could be used to activate SegWit without miner support
- Requirements for UASF to be safe
- How Electrum would handle a fork

Links mentioned in this episode: 
- Electrum Bitcoin Wallet: https://electrum.org/#home
- ASICBoost – Hacker Noon: https://medium.com/@samcole_74219/asicboost-655a73d48ae4
- Bitcoin's New Controversy: The AsicBoost Allegations Explained - CoinDesk: http://www.coindesk.com/bitcoins-new-controversy-asicboost-allegations-explained/
- Timo Hanke on ASICBoost and SegWit Non-Activation: https://twitter.com/timothanke/status/849896505653706753
- From AsicBoost to UASF: Greg Maxwell on Bitcoin's Path Forward - CoinDesk: http://www.coindesk.com/asicboost-uasf-greg-maxwell-bitcoins-path-forward/
- [bitcoin-dev] Thomas Voegtlin: Soft Fork Threshold Signaling Proposal: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/014146.html
- UASF Working Group: https://www.buybitcoinworldwide.com/uasf/
- [bitcoin-dev] Greg Maxwell: I do not support the BIP 148 UASF: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/014152.html
- Thomas Voegtlin: Electrum, SPV Wallets And Bitcoin Aliases — Epicenter: https://epicenter.tv/episode/069/

Sponsors: 
- Jaxx: Wallets that Unify the Blockchain Experience Across Devices - http://jaxx.io

This episode is also available on :
- Epicenter.tv: https://epicenter.tv/179
- YouTube: http://youtu.be/18QdbsSo8T8
- Souncloud: http://soundcloud.com/epicenterbitcoin/eb-179

Watch or listen, Epicenter is available wherever you get your podcasts.

Epicenter is hosted by Brian Fabian Crain, Sébastien Couture & Meher Roy.