achow101 changed the topic of #bitcoin-core-dev to: Bitcoin Core development discussion and commit log | Feel free to watch, but please take commentary and usage questions to #bitcoin | Channel logs: http://www.erisian.com.au/bitcoin-core-dev/, http://gnusha.org/bitcoin-core-dev/ | Weekly Meeting Thursday @ 16:00 UTC | Meeting topics http://gnusha.org/bitcoin-core-dev/proposedmeetingtopics.txt
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<Jouke> Well, I re-indexed twice by accident, but the node is fully caught up now.:)
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<bitcoin-git> [qa-assets] maflcko merged pull request #238: Add Murch’s inputs September 2025 (main...2025-09-murch-inputs) https://github.com/bitcoin-core/qa-assets/pull/238
<bitcoin-git> [qa-assets] maflcko pushed 2 commits to main: https://github.com/bitcoin-core/qa-assets/compare/fc42e64f6e66...a6cc94ad1ad6
<bitcoin-git> qa-assets/main 8896c47 Murch: Add Murch’s inputs September 2025
<bitcoin-git> qa-assets/main a6cc94a maflcko: Merge pull request #238 from murchandamus/2025-09-murch-inputs
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dodo is now known as librehans
<bitcoin-git> [bitcoin] maflcko closed pull request #33144: build: Set AUTHOR_WARNING on warnings (master...2508-bld-warn-dev) https://github.com/bitcoin/bitcoin/pull/33144
<bitcoin-git> [bitcoin] maflcko reopened pull request #33144: build: Set AUTHOR_WARNING on warnings (master...2508-bld-warn-dev) https://github.com/bitcoin/bitcoin/pull/33144
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<bitcoin-git> [qa-assets] maflcko opened pull request #239: Delete nonreduced fuzz inputs (main...main) https://github.com/bitcoin-core/qa-assets/pull/239
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<pinheadmz> why was signet default / genesis / minimum difficulty set to 0x1e0377ae and not the actual minimum 0x207fffff like regtest? _aj_ kalle (?)
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<sipa> pinheadmz: the actual minimum would arguably be 0x2100ffff, corresponding to ~1 hash per block
<sipa> regtest's 0x207ffff is roughly ~2 hashes per block, probably so that not just every nonce is valid and invalid-pow code still gets exercised
<sipa> i'm guessing that signet's higher min difficulty is for (very minimal) DoS protection reasons, otherwise any signet node could be made to accept trivially-created headers (the signet signature check is not performed until the block gets validated, so headers aren't protected by this)
<sipa> see also #33266
<corebot> https://github.com/bitcoin/bitcoin/issues/33266 | signet: disk-space-DoS due to low mining difficulty · Issue #33266 · bitcoin/bitcoin · GitHub
<sipa> arguably it's too low even
<pinheadmz> Huh. I need it even lower for warnet. Takes too long to generate the first 500 blocks I need to fund all the wallets in the simulation
<sipa> what chain does warnet use?
<sipa> ah, signet i guess
<pinheadmz> For capture the flag games yea. Can't have players re org
<pinheadmz> Otherwise regtest
<pinheadmz> I'll fork
<sipa> then capture-the-flag players get an additional vulnerability to exploit :p
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<pinheadmz> Imagine how hard sports would be if every player had a Time Machine
<sipa> well if time machines existed, there would be no bitcoin (everyone travelling back in time to mine early blocks :p)
<pinheadmz> aaaaaand thats why we use signet on warnet!
<pinheadmz> hm creating new genesis block harder than i thought so many pow checks!
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<gmaxwell> clearly you need a little miner asic. :P
<pinheadmz> Got one on my desk! Hahaha 1Th/s bwahaha
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<pinheadmz> but warnet runs in kubernetes pretty annoying to connect
<sipa> pinheadmz: can you just precompute the 500 first blocks?
<sipa> rather than doing it on the fly inside kubernetes
<pinheadmz> Yeah that's an option
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<bitcoin-git> [bitcoin] fjahr opened pull request #33332: common: Make arith_uint256 trivially copyable (master...2025-09-trivial-copy) https://github.com/bitcoin/bitcoin/pull/33332
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<bitcoin-git> [bitcoin] l0rinc opened pull request #33333: RFC: coins: warn on oversized `-dbcache` (master...l0rinc/warn-big-dbcache) https://github.com/bitcoin/bitcoin/pull/33333
<l0rinc> Hah, look at the PR number <3
<sipa> wrong, it is significantly larger than 3
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<gmaxwell> sipa: PR number is oversized, it should just be 3.
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<sipa> gmaxwell: can we go for 10? that would at least be correct in *some* number base
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<bitcoin-git> [bitcoin] Raimo33 opened pull request #33334: node: optimize CBlockIndexWorkComparator (master...index-work-comparator-branchless) https://github.com/bitcoin/bitcoin/pull/33334
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<bitcoin-git> [bitcoin] sipa opened pull request #33335: txgraph: randomize order of same-feerate distinct-cluster transactions (master...202509_txgraph_rand) https://github.com/bitcoin/bitcoin/pull/33335
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