TODO: Update documentation regarding implemented tech as this section is out of date and much progress and upgrades have been made to mentioned sections...
Espers is a blockchain project with the goal of offering secured messaging, websites on the chain and an overall pleasing experience to the user.
Blockchain technology has the capabilities to change a variety of things in the world and can also be the backbone of a new internet. One place that blockchain technology has not had an impact on yet is website on the blockchain. However, Espers is trying to change that and is well on their way to doing so.
Espers Blockchain will keep sites extremely safe and will make them virtually impenetrable, which is creating a new standard for website safety and security. In addition to the security improvements, Espers Blockchain will also ensure that your website is never taken down or removed, no matter what. You will also have complete control of your data, and the sites will feature faster server times.
Developing the usability features: The secured messaging system, masternodes (intuitive node launching and monitoring), smooth sync patch, shrinking blockchain, light clients and much much more.
VRX is designed from the ground up to integrate properly with the Velocity parameter enforcement system to ensure users no longer receive orphan blocks.
Ensuring Espers stays as secure and robust as possible the CryptoCoderz team have implemented what's known as the Velocity block constraint system. This system acts as third and final check for both mined and peer-accepted blocks ensuring that all parameters are strictly enforced.
We use an custom internal algorithm known as HMQ1725 to sign blocks and conduct other functions, it takes its name from how it was designed: Highly-Modified-Quark 17-Algorithms 25-Scientific-Rounds
Espers uses:
Boost1.72,
OR Boost1.58,
OpenSSL1.02u,
OR OpenSSL1.1x,
Berkeley DB 6.2.32,
Qt5.14 to compile
General Info:
Block Spacing: 5 Minutes
Stake Minimum Age: 90 Confirmations (PoS-v3) | 2 Hours (PoS-v2)
Port: 22448
RPC Port: 22442
sudo -i
cd ~; sudo apt-get install ntp git build-essential libssl-dev libdb-dev libdb++-dev libboost-all-dev libqrencode-dev libcurl4-openssl-dev curl libzip-dev; apt-get update; apt-get upgrade; apt-get install git make automake build-essential libboost-all-dev; apt-get install yasm binutils libcurl4-openssl-dev openssl libssl-dev; sudo apt-get install libgmp-dev; cd ~;
cd ~; wget https://download.oracle.com/berkeley-db/db-6.2.32.NC.tar.gz; tar zxf db-6.2.32.NC.tar.gz; cd db-6.2.32.NC/build_unix; ../dist/configure --enable-cxx; make; sudo make install; sudo ln -s /usr/local/BerkeleyDB.6.2/lib/libdb-6.2.so /usr/lib/libdb-6.2.so; sudo ln -s /usr/local/BerkeleyDB.6.2/lib/libdb_cxx-6.2.so /usr/lib/libdb_cxx-6.2.so; export BDB_INCLUDE_PATH="/usr/local/BerkeleyDB.6.2/include"; export BDB_LIB_PATH="/usr/local/BerkeleyDB.6.2/lib"; cd ~;
cd ~; sudo cp -r /home/ftpuser/ftp/files/ESP-clean/. ~/Espers
cd ~; git clone https://github.com/CryptoCoderz/Espers
cd ~; cd ~/Espers/src; chmod a+x obj; chmod a+x leveldb/build_detect_platform; chmod a+x leveldb; chmod a+x ~/Espers/src; chmod a+x ~/Espers; make -f ~/Espers/src/makefile/makefile.unix USE_UPNP=-; cd ~; cp ~/Espers/src/Espersd /usr/local/bin;
cd ~; sudo ufw allow 22448/tcp; sudo ufw allow 22442/tcp; sudo mkdir ~/.ESP; cat << "CONFIG" >> ~/.ESP/Espers.conf
listen=1
server=1
daemon=1
testnet=0
rpcuser=espersuser
rpcpassword=SomeCrazyVeryVerySecurePasswordHere
rpcport=22442
port=22448
rpcconnect=127.0.0.1
rpcallowip=127.0.0.1
addnode=198.50.180.207
addnode=85.255.7.52
addnode=195.181.211.221
addnode=176.31.205.41
addnode=116.14.167.86
addnode=167.99.171.227
addnode=174.107.102.219
addnode=176.9.156.236
addnode=198.50.180.193
addnode=94.130.64.143
addnode=145.239.65.6
addnode=108.61.175.156
addnode=46.4.27.201
addnode=149.56.154.75
addnode=50.46.99.238
addnode=159.89.114.40
CONFIG
chmod 700 ~/.ESP/Espers.conf; chmod 700 ~/.ESP; ls -la ~/.ESP
cd ~; Espersd; Espersd getinfo
make clean -f makefile.unix USE_UPNP=-
make -f makefile.unix USE_UPNP=-
Espers [ESP] is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.
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 Espers [ESP].
The contribution workflow is described in CONTRIBUTING.md.
The developer mailing list should be used to discuss complicated or controversial changes before working on a patch set.
Developer Discord can be found at https://discord.gg/cn3AfPS .
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.
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
There are also regression and integration tests of the RPC interface, written in Python, that are run automatically on the build server.
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.