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Personal blog of b10c, a Bitcoin developer.

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The blog post discusses the development of 'peer-observer', a monitoring tool for the Bitcoin P2P network aimed at detecting attacks and anomalies. It outlines the motivation behind creating this tool, which arose from past incide...
The author outlines ongoing Bitcoin Core projects, focusing on transaction monitoring, CI runner improvements, and future development plans while addressing security and dependency management challenges.
The author outlines significant contributions to Bitcoin projects, focusing on peer-observer tooling, research participation, and updates to Bitcoin Core and related libraries.
The author shares insights on Bitcoin Core development activities, including vulnerability disclosures, monitoring tools, and future project plans funded by an OpenSats LTS grant.
The author outlines their recent contributions to Bitcoin projects, focusing on peer-observer tooling, research participation, and updates to Bitcoin Core.
This work-log outlines significant contributions to Bitcoin network monitoring and development, focusing on the peer-observer tool and ongoing improvements in Bitcoin Core.
The author shares updates on their Bitcoin-related projects, highlighting contributions to monitoring tools and the importance of network analysis while acknowledging the need for a break.
The work-log outlines the author's contributions to Bitcoin projects, focusing on mining pool behavior, anomaly detection, and infrastructure maintenance while mentoring a mentee.
The workshop focused on Bitcoin monitoring, sharing experiences and tools to enhance network security and collaboration in the Bitcoin ecosystem.
The author shares updates on their Bitcoin projects, including the launch of mainnet-observer and contributions to peer-observer, emphasizing community engagement and future developments.
localprobe is a JavaScript tool that alerts Firefox users if a Bitcoin node is running on the same machine, highlighting privacy risks associated with local network access.
The text discusses a Denial-of-Service issue on the Bitcoin network caused by non-ideal sorting, BRC-20 mints, and spy nodes. It explains the observation, effect, cause, and fix of the issue, as well as the reflection on the incid...
The post explores Bitcoin Mining Centralization in 2025, showing that it is highly centralized with only six pools mining more than 95% of the blocks. It discusses the hashrate share of the current five biggest mining pools, prese...
The text discusses the observation of invalid mining jobs by AntPool & friends, which are suspected to be caused by a bug in AntPool’s coinbase creation code. The behavior of AntPool & friends is analyzed based on historical data,...
The post examines the detection of missing transactions from OFAC-sanctioned addresses in Bitcoin mining pools. It analyzes whether these transactions were intentionally filtered or if there are other explanations for their absenc...
The text discusses the similarities between different mining pools' block templates, indicating proxy pooling. The author compares Merkle branches sent in stratum jobs to calculate a similarity score, showing pools with similar te...
The text discusses the use of eBPF and USDT tracepoints in Bitcoin Core to monitor P2P network events for anomaly detection. It also mentions an episode on the brink.dev podcast about pre-25.0 Bitcoin Core vulnerabilities and a ta...
The text discusses Bitcoin Core development and the author's talks at various events, including Bitcoin Burg Academy, eBPF Summit 2024, and FFM BTC Meetup. The author covers the basics of Bitcoin Core development, communication am...