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README
MIT

Syscoin Core integration/staging tree

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https://syscoin.org

What is Syscoin?

Syscoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Syscoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Syscoin 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 Syscoin Core software, see https://syscoin.org/, or read the original whitepaper.

Syscoin is a merge-minable SHA256 coin which provides an array of useful services which leverage the bitcoin protocol and blockchain technology.

888 million total coins (deflation 5 percent per year, deflation on all payouts) Block time: 60 seconds target Rewards: 38.5 Syscoins per block deflated 5 percent per year. 10 percent to governance proposals 22.5 percent to miner 67.5 percent to masternode SHA256 Proof of Work Mineable either exclusively or via merge-mining any SHA256 PoW coin Masternode collateral requirement: 100000 Syscoins Masternode seniority: 35% increase after 1 year, 100% increase after 2.5 years Governance proposals payout schedule: every month There is a 5% deflation per year on Syscoin Governance funding per round (Approx. 2m Syscoins per month to start) Governance funding gets 5% deflation per round (superblock). See formula below. Consensus enforced segwit (all transactions have witness programs except coinbase) Codebase based off of latest Bitcoin Core (https://github.com/bitcoin/bitcoin) Services include:

Hybrid layer 2 PoW/PoS consensus with bonded validator system (masternodes) ZDAG technology for point-of-sale speeds and probabilistic confirmations useful for microtransactions Trustless sidechain access to Ethereum and back through a custom permissionless/trustless sidechain technology (SYSX bridge) https://github.com/syscoin/sysethereum Decentralized governance (blockchain pays for work via proposals and masternode votes) Digital asset creation and management. ZDAG is open-source and developed over the course of 12 months by Blockchain Foundry Inc, with external audit done over 6 months by Whiteblock. Performance report can be found here.

Governance formula: We have implemented a % decline schedule — starting the first month with 1500000 SYS and ending on the 24th month with 196708 SYS. After that period, the superblock starts with 151767 SYS a month and will decline 5% every year. Read more about it here: https://medium.com/@syscoin/syscoin-4-0-rewards-specifications-a3dc01d85adf.

Interoptibility through a trust-less, no custodian, no counterparty bridge to Ethereum. Existing ERC20 assets can move to and from Syscoin Platform Tokens at will. This is the first time a fractional supply, two-way bridge has been developed and brought to market. It will enable a scaling infrastructure for Ethereum as well as flexibility for existing Syscoin ecosystem. A sharing and collobrative approach to foster growth in the industry was the goal, this is the results of over 18 months of research and development by Blockchain Foundry Inc. Documentation can be found here

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

Syscoin is a merge-minable SHA256 coin which provides an array of useful services which leverage the bitcoin protocol and blockchain technology.

888 million total coins (deflation 5 percent per year, deflation on all payouts) Block time: 60 seconds target Rewards: 38.5 Syscoins per block deflated 5 percent per year. 10 percent to governance proposals 22.5 percent to miner 67.5 percent to masternode SHA256 Proof of Work Mineable either exclusively or via merge-mining any SHA256 PoW coin Masternode collateral requirement: 100000 Syscoins Masternode seniority: 35% increase after 1 year, 100% increase after 2.5 years Governance proposals payout schedule: every month There is a 5% deflation per year on Syscoin Governance funding per round (Approx. 2m Syscoins per month to start) Governance funding gets 5% deflation per round (superblock). See formula below. Consensus enforced segwit (all transactions have witness programs except coinbase) Codebase based off of latest Bitcoin Core (https://github.com/bitcoin/bitcoin) Services include:

Hybrid layer 2 PoW/PoS consensus with bonded validator system (masternodes) ZDAG technology for point-of-sale speeds and probabilistic confirmations useful for microtransactions Trustless sidechain access to Ethereum and back through a custom permissionless/trustless sidechain technology (SYSX bridge) https://github.com/syscoin/sysethereum Decentralized governance (blockchain pays for work via proposals and masternode votes) Digital asset creation and management

Governance formula: We have implemented a % decline schedule — starting the first month with 1500000 SYS and ending on the 24th month with 196708 SYS. After that period, the superblock starts with 151767 SYS a month and will decline 5% every year. Read more about it here: https://medium.com/@syscoin/syscoin-4-0-rewards-specifications-a3dc01d85adf

License

Syscoin 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 Syscoin 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 Syscoin 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.

The MIT License (MIT) Copyright (c) 2009-2020 The Bitcoin Core developers Copyright (c) 2009-2020 Syscoin Developers Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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