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Minimal implementation of the Mimblewimble protocol.
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Ignotus Peverell 43f4f92730
[T4] Secondary proof of work difficulty adjustments (#1709) 
* First pass at secondary proof of work difficulty adjustments
* Core and chain test fixes
* Next difficulty calc now needs a height. Scaling calculation fixes. Setting scaling on mined block.
* Change factor to u32 instead of u64.
* Cleanup structs used by next_difficulty
* Fix header size calc with u32 scaling
2018-10-13 13:57:01 -07:00
.hooks cannot use unstable rustfmt features outside nightly toolchain (#1338) 2018-08-10 14:54:09 +01:00
api Replace RefCell with RwLock in OneTime (and cleanup Weak usage) (#1694) 2018-10-09 16:53:57 +01:00
chain [T4] Secondary proof of work difficulty adjustments (#1709) 2018-10-13 13:57:01 -07:00
config [T4 ONLY] T4 PoW changes (#1663) 2018-10-10 10:09:44 +01:00
core [T4] Secondary proof of work difficulty adjustments (#1709) 2018-10-13 13:57:01 -07:00
doc [T4] Update transaction schematic (#1712) 2018-10-10 11:28:36 +01:00
keychain [T4 ONLY] BIP32 Wallet Compliance - Aggsig Updates - Bulletproof Updates (#1501) 2018-10-10 10:11:01 +01:00
p2p [T4] Secondary proof of work difficulty adjustments (#1709) 2018-10-13 13:57:01 -07:00
pool [T4] warning cleanup (#1713) 2018-10-10 08:56:15 -07:00
servers [T4] Secondary proof of work difficulty adjustments (#1709) 2018-10-13 13:57:01 -07:00
src feature: txhashset downloading progress display on tui (#1729) (#1730) 2018-10-13 10:12:13 +08:00
store [T4 ONLY] BIP32 Wallet Compliance - Aggsig Updates - Bulletproof Updates (#1501) 2018-10-10 10:11:01 +01:00
util [T4 ONLY] BIP32 Wallet Compliance - Aggsig Updates - Bulletproof Updates (#1501) 2018-10-10 10:11:01 +01:00
wallet [T4] Secondary proof of work difficulty adjustments (#1709) 2018-10-13 13:57:01 -07:00
.auto-release.sh chore: automatic binaries release (#1540) 2018-09-25 08:37:24 +08:00
.editorconfig Add a .editorconfig file 2018-05-07 10:08:55 -04:00
.gitignore Fix typo + git ignore wallet data (#1350) 2018-08-13 23:28:01 +01:00
.gitlab-ci.yml Add gitlab ci config (#860) 2018-03-25 17:41:49 +00:00
.travis.yml Chain init reset sync head (#1724) 2018-10-11 12:28:07 +01:00
Cargo.lock [T4 ONLY] BIP32 Wallet Compliance - Aggsig Updates - Bulletproof Updates (#1501) 2018-10-10 10:11:01 +01:00
Cargo.toml Bump reqwest version to remove hyper 0.11 2018-09-19 19:43:56 +02:00
CODE_OF_CONDUCT.md Many typo fixes (#1158) 2018-06-13 17:03:34 +01:00
CONTRIBUTING.md docs: contributing.md twitter link for the council (#1708) 2018-10-10 09:52:06 +08:00
Dockerfile Dockerfile updates (#1580) 2018-09-25 13:18:17 -07:00
LICENSE Create LICENSE 2017-06-29 09:24:44 -07:00
README.md Readme twitter link for the council 2018-10-09 18:39:34 +00:00
rustfmt.toml cannot use unstable rustfmt features outside nightly toolchain (#1338) 2018-08-10 14:54:09 +01:00
SECURITY.md First pass at Grin's security policy 2018-09-10 22:52:17 +00:00

README.md

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Grin

Grin is an in-progress implementation of the MimbleWimble protocol. Many characteristics are still undefined but the following constitutes a first set of choices:

  • Clean and minimal implementation, aiming to stay as such.
  • Follows the MimbleWimble protocol, which provides great anonymity and scaling characteristics.
  • Cuckoo Cycle proof of work.
  • Relatively fast block time (a minute).
  • Fixed block reward over time with a decreasing dilution.
  • Transaction fees are based on the number of Outputs created/destroyed and total transaction size.
  • Smooth curve for difficulty adjustments.

To learn more, read our introduction to MimbleWimble and Grin.

Status

Grin is still an infant, much is left to be done and contributions are welcome (see below). Check our mailing list archives for the latest status.

Contributing

To get involved, read our contributing docs.

Find us:

Getting Started

To learn more about the technology, read our introduction.

To build and try out Grin, see the build docs.

Philosophy

Grin likes itself small and easy on the eyes. It wants to be inclusive and welcoming for all walks of life, without judgement. Grin is terribly ambitious, but not at the detriment of others, rather to further us all. It may have strong opinions to stay in line with its objectives, which doesn't mean disrespect of others' ideas.

We believe in pull requests, data and scientific research. We do not believe in unfounded beliefs.

Credits

Tom Elvis Jedusor for the first formulation of MimbleWimble.

Andrew Poelstra for his related work and improvements.

John Tromp for the Cuckoo Cycle proof of work.

J.K. Rowling for making it despite extraordinary adversity.

License

Apache License v2.0.