https://chris-zeng.pages.dev/tags/bitcoin-core/ Recent content in Bitcoin-Core on Chris Zeng https://chris-zeng.pages.dev/img/headshot.jpg https://chris-zeng.pages.dev/img/headshot.jpg Hugo en-us Wed, 05 Aug 2026 00:00:00 +0000 https://chris-zeng.pages.dev/posts/bitcoind-silent-zmq-failure/ Wed, 05 Aug 2026 00:00:00 +0000 https://chris-zeng.pages.dev/posts/bitcoind-silent-zmq-failure/ bitcoind can publish new blocks and transactions over ZMQ, and tools like LND depend on it. But if a configured ZMQ socket can’t bind at startup, bitcoind starts anyway and only logs it at debug level — so the problem surfaces days later, in someone else’s process. This is the bug, the 2019 history behind it, and the two-function design that fixes it.