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The blockchain that provides the digital content namespace for the LBRY protocol
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Merge #14646: Add expansion cache functions to descriptors (unused for now) 
26879509f Add comments to descriptor tests (Pieter Wuille)
82df4c64f Add descriptor expansion cache (Pieter Wuille)
1eda33aab [refactor] Combine the ToString and ToPrivateString implementations (Pieter Wuille)
24d3a7b3a [refactor] Use DescriptorImpl internally, permitting access to new methods (Pieter Wuille)
6be0fb4b3 [refactor] Add a base DescriptorImpl with most common logic (Pieter Wuille)

Pull request description:

  This patch modifies the internal `Descriptor` class to optionally construct and use an "expansion cache". Such a cache is a byte array that encodes all information necessary to expand a `Descriptor` a second time without access to private keys, and without the need to perform expensive BIP32 derivations. For all currently defined descriptors, the cache simply contains a concatenation of all public keys used.

  This is motivated by the goal of importing a descriptor into the wallet and using it as a replacement for the keypool, where it would be impossible to expand descriptors if they use hardened derivation.

Tree-SHA512: f531a0a82ec1eecc30b78ba8a31724d1249826b028cc3543ad32372e1aedd537f137ab03dbffc222c5df444d5865ecd5cec754c1ae1d4989b6e9baeaffade32a
2018-12-12 17:24:26 +13:00
.github doc: Add GitHub pr template 2018-09-23 08:31:11 -04:00
.travis Add ASan Travis build 2018-11-26 22:20:46 +01:00
.tx tx: Update transifex slug 016x→017x 2018-08-02 13:42:15 +02:00
build-aux/m4 Bump the minimum Qt version to 5.2 2018-11-14 01:32:51 +02:00
build_msvc Add skeleton chain and client classes 2018-11-06 11:44:40 -04:00
contrib Merge #14883: add --retry 5 to curl opts in install_db4.sh 2018-12-11 13:43:20 -05:00
depends build: Remove illegal spacing in darwin.mk 2018-11-03 05:03:50 -05:00
doc Merge #14799: docs: convert link from http to https in doc/release-process.md 2018-12-09 23:57:49 +01:00
share rpcauth: Improve by using argparse and getpass modules 2018-11-21 22:30:07 +00:00
src Merge #14646: Add expansion cache functions to descriptors (unused for now) 2018-12-12 17:24:26 +13:00
test Merge #14886: [tests] Refactor importmulti tests 2018-12-11 13:56:38 -05:00
.appveyor.yml appveyor: Script improvement part II 2018-11-06 10:58:10 +08:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore gitignore contents of db4 folder 2018-10-19 12:15:47 +08:00
.travis.yml Merge #14231: travis: Save cache even when build or test fail 2018-12-03 11:07:19 -05:00
autogen.sh Add "export LC_ALL=C" to all shell scripts 2018-06-14 15:27:52 +02:00
configure.ac Merge #14564: Adjust configure so that only bip70 is disabled when protobuf is missing instead of the GUI 2018-12-06 13:50:52 -05:00
CONTRIBUTING.md added details about commit messages 2018-10-30 07:59:10 +01:00
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 build: Add bitcoin-tx.exe into Windows installer 2018-11-09 21:57:13 +08:00
README.md [doc] conf: Remove deprecated options from docs, Other cleanup 2018-11-07 13:30:03 -05:00

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://bitcoincore.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 and useful hints for developers can be found in doc/developer-notes.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 macOS, 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.