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The blockchain that provides the digital content namespace for the LBRY protocol
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Python 15.1%
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Wladimir J. van der Laan 3c2a41a9fc
Merge #13011: Cache witness hash in CTransaction 
fac1223a56 Cache witness hash in CTransaction (MarcoFalke)
faab55fbb1 Make CMutableTransaction constructor explicit (MarcoFalke)

Pull request description:

  This speeds up:
  * compactblocks (v2)
  * ATMP
  * validation and miner (via `BlockWitnessMerkleRoot`)
  * sigcache (see also unrelated #13204)
  * rpc and rest (nice, but irrelevant)

  This presumably slows down rescan, which uses a `CTransaction` and its `GetHash`, but never uses the `GetWitnessHash`. The slow down is proportional to the number of witness transactions in the rescan window. I.e. early in the chain there should be no measurable slow down. Later in the chain, there should be a slow down, but acceptable given the speedups in the modules mentioned above.

Tree-SHA512: 443e86acfcceb5af2163e68840c581d44159af3fd1fce266cab3504b29fcd74c50812b69a00d41582e7e1c5ea292f420ce5e892cdfab691da9c24ed1c44536c7
2018-05-23 19:26:18 +02:00
.github Make default issue text all comments to make issues more readable 2017-11-16 11:50:56 -05:00
.tx tx: Update transifex slug for 0.16 2018-01-24 16:35:40 +01:00
build-aux/m4 ax_boost_{chrono,unit_test_framework}.m4: take changes from upstream 2018-03-15 19:59:11 +01:00
contrib Merge #13228: Add script to detect circular dependencies between source modules 2018-05-18 12:52:20 -04:00
depends Merge #12715: depends: Add 'make clean' rule 2018-04-18 11:28:05 +02:00
doc [docs] Add release notes for HD master key -> HD seed rename 2018-05-19 11:21:20 -04:00
share rpcauth: Make it possible to provide a custom password 2018-05-02 05:29:22 +02:00
src Merge #13011: Cache witness hash in CTransaction 2018-05-23 19:26:18 +02:00
test Merge #10757: RPC: Introduce getblockstats to plot things 2018-05-23 19:00:48 +02:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore [build] .gitignore: add QT Creator artifacts 2017-12-22 12:37:00 +01:00
.travis.yml travis: Rename the build stage "check_doc" to "lint" 2018-05-12 21:44:05 +02:00
autogen.sh Add MIT license to autogen.sh and share/genbuild.sh 2016-09-21 23:01:36 +00:00
configure.ac Merge #13005: Make --enable-debug to pick better options 2018-05-14 15:33:03 +02:00
CONTRIBUTING.md doc: Mention good first issue list in CONTRIBUTING.md 2018-05-04 11:23:38 +08:00
COPYING [Trivial] Update license year range to 2018 2018-01-01 04:33:09 +09:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in Unify package name to as few places as possible without major changes 2015-12-14 02:11:10 +00:00
Makefile.am Revert "Merge #12870: make clean removes src/qt/moc_ files" 2018-05-16 20:13:30 -07:00
README.md Docs: Improve documentation on standard communication channels 2018-03-22 12:58:57 -07:00

README.md

Bitcoin Core integration/staging tree

Build Status

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately useable, binary version of the Bitcoin Core software, see https://bitcoin.org/en/download, or read the original whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built and tested, but is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

The contribution workflow is described in CONTRIBUTING.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes sure that every pull request is built for Windows, Linux, and OS X, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.

Translators should also subscribe to the mailing list.