Episode 13: Tor v3 Support in Bitcoin Core 0.21

Episode 13: Tor v3 Support in Bitcoin Core 0.21

Bitcoin Explained - The Technical Side of Bitcoin

Bitcoin Core 0.21 will support Tor v3 addresses. Aaron and Sjors explain what this means and why it matters, and also discuss how new Bitcoin nodes find existing Bitcoin nodes when they bootstrap to the network.

Helpful Links:

* Tor V3 (onion) address support in Bitcoin Core: https://github.com/bitcoin/bitcoin/pull/19954

* the ADDRv2 message added in BIP155 that allows nodes to gossip those new Tor addresses: https://github.com/bitcoin/bips/blob/master/bip-0155.mediawiki#Specification

* DNS seeds and the bootstrap problem: https://stackoverflow.com/questions/41673073/how-does-the-bitcoin-client-determine-the-first-ip-address-to-connect


00:00 - 00:34 - intro 

1:02 - 2:10: how Tor Works

2:25 - 3:03: benefits of running a bitcoin node behind tor. 

7:12 - 8:19 Discussing how Bitcoin node gossip addresses. 

8:56 - 10:40 Explaining how DNS works 

12:30 - 13:30: DNS is storing list of bitcoin nodes. 

Support the Show!

Follow Bitcoin Magazine on Twitter @BitcoinMagazine

Follow Aaron van Wirdum @AaronvanW

Follow Sjors Provoost @provoost

Follow Ruben Somsen @SomsenRuben


Song Title: Segwit Sounds

By: The NakamoTones

Album: Citadel Music

Produced by: Bitcoin Audio


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