08:53 < GitHub179> [bitcoin] fanquake opened pull request #8053: [WIP] [depends] Qt 5.6.0 (master...depends-qt-5-6-0) https://github.com/bitcoin/bitcoin/pull/8053

18:11 < GitHub176> [bitcoin] domob1812 opened pull request #8054: net: Avoid duplicate getheaders requests. (master...per-client-duplicate-getheaders) https://github.com/bitcoin/bitcoin/pull/8054

21:35 < qmm> what are all the cryptographic hash functions involved in bitcoin-core?

21:36 < sipa> block and transaction hashes are double sha256

21:36 < sipa> inside scripts, sha1, sha256 and ripemd160 are available

21:36 < sipa> should only sha256+ripemd160 is commonly used

21:37 < sipa> *though only

21:37 < Chris_Stewart_5> qmm: https://github.com/bitcoin/bitcoin/blob/master/src/script/interpreter.cpp#L825-L848 for direct instances in Script

21:38 < qmm> thank you sipa

21:39 < sipa> sha512 is included in the source code for the purpose of bip32 derivation, but that functionality is not actually exposed

21:41 < Chris_Stewart_5> Is there a reliable way to detect a coinbase inputs when looking at txs independent of blocks?

21:43 < sipa> yes; their prevout hash is 0

21:44 < Chris_Stewart_5> negative satoshi is required as well?

21:44 < sipa> inputs don't have amounts

21:44 < Chris_Stewart_5> index* sorry

21:45 < sipa> yes

21:45 < sipa> negative 1, even

22:19 < luke-jr> qmm: note that to implement a node, you MUST support all of the available hashes though

22:22 < qmm> thanks for the extra information luke-jr