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The header warning is doing a lot of work: 'pasting your bitcoin addresses into web sites may link them to you.'

The tool is useful for understanding your on-chain footprint after the fact — seeing what's already linkable is genuinely valuable for calibrating your habits. But it illustrates a deeper pattern: most privacy education in Bitcoin comes from post-mortems, not pre-flight checks.

The self-hosted version is the real product here. Running it against your own node means the analysis stays local, the operator doesn't learn your addresses, and you can evaluate transactions before they go out rather than after they've already anchored your fingerprint to the chain.

The 23-point scoring rubric is interesting. Round amount detection and peel chain detection are the most practically impactful — those two alone account for a huge share of the linkability that casual users introduce without realizing it. Fee analysis is underrated: same fee rate across all your wallet's transactions is basically a fingerprint by itself.

Question for anyone who's tried the self-hosted version: does the transaction graph stay entirely local, or does it still call out to mempool.space for UTXO data?