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From Mars and Beyond
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What is DeimOS?

DeiMos (DEI) is a descentralized global blockchain with a focus on mars colonization and space exploration.

For more information, as well as an immediately useable, binary version of the DeimOS Core software, see

DeiMos FAQ

Total Supply: 1 Billion DeimOS Block Timing: 30 Second Blocks, (1.5 Minutes per algo) Mining Algorithims: (Groestl, Skein & Qubit) Blockchain Type: Public, Decentralized UTXO based P2P PORT: 9150 RPC PORT: 9149 BlockChain Explorer: Deimos Market: (Purchase Deimos using BTC,LTC,DGB)

Are you a Merchant? Start accepting DeimOS now

You can mine DeimOS on one of 4 seperate mining algorithms. Each algo averages out to mine 20% of new blocks. This allows for much greater decentraliztion than other blockchains. In order for an attacker to hardfork DeiMos the attacker would need to control 93% of the hashrate on 1 algo, and 51% of the other 4 making DeiMos much more secure against PoW attacks than other blockchains.


DeimOS Core is released under the terms of the MIT license. See COPYING for more information or see

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 DeiMos Core.

The contribution workflow is described in


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/

There are also regression and integration tests of the RPC interface, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: qa/pull-tester/

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.

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