Home < Bitcoin Core Dev Tech < Bitcoin Core Dev Tech 2024 (Apr) < Private tx broadcast

Private tx broadcast

Date: April 8, 2024

Tags: Bitcoin core, P2p

Category: Core dev tech


  • TX is validated before broadcast (using mempool test).
  • The sender ignores incoming messages from the receiver (except the handshake and PONG), so the sender cannot send back the tx before disconnection.
  • When it receives the tx back, it becomes “just a tx in mempool”.


  • Check if the wallet is going to rebroadcast a tx it has created but has been broadcast via private broadcast and if yes, prevent that.
  • Consider disabling walletbroadcast=1 if privatebroadcast=1, or in other words - enforce walletbroadcast=0.
  • RPC to check the stats.