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m0wer
m0wer@stacker.news
npub1w3va...4c5c
JoinMarket NG
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m0wer 2 months ago
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m0wer 3 months ago
DeepSeek-V3.2: “Intelligence will become too cheap to meter” - YouTube Breaking down what made DeepSeek V3.2 such an important paper, how is DeepSeek-V3.2-Speciale so good, how DeepSeek has created this model, and explaining DeepSeek's new secret weapon: DeepSeek Sparse Attention (DSA).
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m0wer 3 months ago
Advent of Code 2025 Advent of Code is an Advent calendar of small programming puzzles for a variety of skill levels that can be solved in any programming language you like. People use them as interview prep, company training, university coursework, practice problems, a speed contest, or to challenge each other.
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m0wer 3 months ago
Analyze JoinMarket Bitcoin CoinJoin transactions using ILP. # JoinMarket Analyzer: Understanding CoinJoin Change Outputs I've released a tool called **joinmarket-analyzer** to match inputs and change outputs in JoinMarket transactions, identifying who the taker was. **Goal:** The purpose is **not to spread FUD**, but to raise awareness. It's crucial to understand that this analysis **only affects change outputs**. The equal-amount outputs—which provide the actual privacy in a CoinJoin—remain indistinguishable. The tool uses Integer Linear Programming (ILP) to match inputs with their respective changes and determine which participant is the likely "Taker" (the one initiating the transaction and paying fees) and which are the "Makers" (liquidity providers earning fees). ## Example Usage You can run it easily with Docker: ```bash docker run --rm ghcr.io/m0wer/joinmarket_analyzer:master \ 0cb4870cf2dfa3877851088c673d163ae3c20ebcd6505c0be964d8fbcc856bbf \ --max-fee-rel 0.001 --max-solutions 1 ``` ## Results The tool outputs the probable structure of the transaction: ``` ... Taker: Participant 4 (pays 21,368 sats) 💰 Participant 1 (maker) Inputs: [0] Outputs: Equal=6.3M sats, Change=113M sats Fee receives: 458 sats ... 🎯 Participant 4 (taker) Inputs: [4] Outputs: Equal=6.3M sats, No change output Fee pays: 21,368 sats ... ``` [View this transaction on mempool.space]( ## Future Possibilities This tool lays the groundwork for more advanced privacy research: * **Entropy Evaluation:** Measure how "ambiguous" change outputs are. If multiple valid solutions exist, the Taker is harder to pinpoint. * **Algorithm Design:** Evaluate and improve taker algorithms to intentionally create ambiguous change structures. * **Market Stats:** Analyze historical CoinJoins to gather statistics on fee limits used by takers and earnings by makers. Check out the code and contribute: https://github.com/m0wer/joinmarket-analyzer