Discussion of https://github.com/bitcoin/bitcoin/pull/29415

The proposal: Just send the tx for one connection (Tor or I2P) and leave it to broadcast it.

• Vasild started to split this PR into small PRs - some have been merged. The goal is to facilitate the review.

• It’s going to have 1p1c on this - in a follow-up - there is no current support for it.

• INV, GETDATA, then send the transaction - close the connection after sending the tx. The reason is to not send unsolicited txs because we might want to reject it in the future.

• It currently sends it to 3 peers.

• We try to not leak any information of us when opening the connection - we fake UA.

• Peerman has the transactions to be broadcasted and the private relay is done by the connman. It’s ordered by priority.

• “The transaction comes from nowhere” - there is no tor address related.

• This proposal would change the number of churn in the network.

• 64 max concurrent connections - what about I want to send a bunch of transactions? Is this number enough?

• Log category for private broadcast should be in the same PR, It doesn’t make sense to have it in a separated PR.

• -onlynet= (automated connections only with this network). However, using a proxy could relay private tx to ipv4/6 peers.

• "Using wireshark, can you identify this pattern?" - No.

• We should not update our addrman when doing the private broadcast - leave no traces.