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README.md
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This is the reference code for [CryptoNote](https://cryptonote.org) cryptocurrency protocol.
* Launch your own CryptoNote currency: [CryptoNote Starter](https://cryptonotestarter.org/)
* CryptoNote reference implementation: [CryptoNoteCoin](https://cryptonote-coin.org)
* Discussion board and support: [CryptoNote Forum](https://forum.cryptonote.org)
## CryptoNote forking how-to
### Preparation
1. Create an account on [GitHub.com](github.com)
2. Fork [CryptoNote repository](https://github.com/cryptonotefoundation/cryptonote)
3. Buy one or two Ubuntu-based dedicated servers (at least 2Gb of RAM) for seed nodes.
### First step. Give a name to your coin
**Good name must be unique.** Check uniqueness with [google](http://google.com) and [Map of Coins](mapofcoins.com) or any other similar service.
Name must be specified twice:
**1. in file src/CryptoNoteConfig.h** - `CRYPTONOTE_NAME` constant
Example:
```
const char CRYPTONOTE_NAME[] = "furiouscoin";
```
**2. in src/CMakeList.txt file** - set_property(TARGET daemon PROPERTY OUTPUT_NAME "YOURCOINNAME**d**")
Example:
```
set_property(TARGET daemon PROPERTY OUTPUT_NAME "furiouscoind")
```
**Note:** You should also change a repository name.
### Second step. Emission logic
**1. Total money supply** (src/CryptoNoteConfig.h)
Total amount of coins to be emitted. Most of CryptoNote based coins use `(uint64_t)(-1)` (equals to 18446744073709551616). You can define number explicitly (for example `UINT64_C(858986905600000000)`).
Example:
```
const uint64_t MONEY_SUPPLY = (uint64_t)(-1);
```
**2. Emission curve** (src/CryptoNoteConfig.h)
Be default CryptoNote provides emission formula with slight decrease of block reward with each block. This is different from Bitcoin where block reward halves every 4 years.
`EMISSION_SPEED_FACTOR` constant defines emission curve slope. This parameter is required to calulate block reward.
Example:
```
const unsigned EMISSION_SPEED_FACTOR = 18;
```
**3. Difficulty target** (src/CryptoNoteConfig.h)
Difficulty target is an ideal time period between blocks. In case an average time between blocks becomes less than difficulty target, the difficulty increases. Difficulty target is measured in seconds.
Difficulty target directly influences several aspects of coin's behavior:
- transaction confirmation speed: the longer the time between the blocks is, the slower transaction confirmation is
- emission speed: the longer the time between the blocks is the slower the emission process is
- orphan rate: chains with very fast blocks have greater orphan rate
For most coins difficulty target is 60 or 120 seconds.
Example:
```
const uint64_t DIFFICULTY_TARGET = 120;
```
**4. Block reward formula**
In case you are not satisfied with CryptoNote default implementation of block reward logic you can also change it. The implementation is in `src/CryptoNoteCore/Currency.cpp`:
```
bool Currency::getBlockReward(size_t medianSize, size_t currentBlockSize, uint64_t alreadyGeneratedCoins, uint64_t fee, uint64_t& reward, int64_t& emissionChange) const
```
This function has two parts:
- basic block reward calculation: `uint64_t baseReward = (m_moneySupply - alreadyGeneratedCoins) >> m_emissionSpeedFactor;`
- big block penalty calculation: this is the way CryptoNote protects the block chain from transaction flooding attacks and preserves opportunities for organic network growth at the same time.
Only the first part of this function is directly related to the emission logic. You can change it the way you want. See MonetaVerde and DuckNote as the examples where this function is modified.
### Third step. Networking
**1. Default ports for P2P and RPC networking** (src/CryptoNoteConfig.h)
P2P port is used by daemons to talk to each other through P2P protocol.
RPC port is used by wallet and other programs to talk to daemon.
It's better to choose ports that aren't used by other software or coins. See known TCP ports lists:
* http://www.speedguide.net/ports.php
* http://www.networksorcery.com/enp/protocol/ip/ports00000.htm
* http://keir.net/portlist.html
Example:
```
const int P2P_DEFAULT_PORT = 17236;
const int RPC_DEFAULT_PORT = 18236;
```
**2. Network identifier** (src/P2p/P2pNetworks.h)
This identifier is used in network packages in order not to mix two different cryptocoin networks. Change all the bytes to random values for your network:
```
const static boost::uuids::uuid CRYPTONOTE_NETWORK = { { 0xA1, 0x1A, 0xA1, 0x1A, 0xA1, 0x0A, 0xA1, 0x0A, 0xA0, 0x1A, 0xA0, 0x1A, 0xA0, 0x1A, 0xA1, 0x1A } };
```
**3. Seed nodes** (src/CryptoNoteConfig.h)
Add IP addresses of your seed nodes.
Example:
```
const std::initializer_list<const char*> SEED_NODES = {
"111.11.11.11:17236",
"222.22.22.22:17236",
};
```
### Fourth step. Transaction fee and related parameters
**1. Minimum transaction fee** (src/CryptoNoteConfig.h)
Zero minimum fee can lead to transaction flooding. Transactions cheaper than the minimum transaction fee wouldn't be accepted by daemons. 100000 value for `MINIMUM_FEE` is usually enough.
Example:
```
const uint64_t MINIMUM_FEE = 100000;
```
**2. Penalty free block size** (src/CryptoNoteConfig.h)
CryptoNote protects chain from tx flooding by reducing block reward for blocks larger than the median block size. However, this rule applies for blocks larger than `CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE` bytes.
Example:
```
const size_t CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE = 20000;
```
### Fifth step. Address prefix
You may choose a letter (in some cases several letters) all the coin's public addresses will start with. It is defined by `CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX` constant. Since the rules for address prefixes are nontrivial you may use the [prefix generator tool](https://cryptonotestarter.org/tools.html).
Example:
```
const uint64_t CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX = 0xe9; // addresses start with "f"
```
### Sixth step. Genesis block
**1. Build the binaries with blank genesis tx hex** (src/CryptoNoteConfig.h)
You should leave `const char GENESIS_COINBASE_TX_HEX[]` blank and compile the binaries without it.
Example:
```
const char GENESIS_COINBASE_TX_HEX[] = "";
```
**2. Start the daemon to print out the genesis block**
Run your daemon with `--print-genesis-tx` argument. It will print out the genesis block coinbase transaction hash.
Example:
```
furiouscoind --print-genesis-tx
```
**3. Copy the printed transaction hash** (src/CryptoNoteConfig.h)
Copy the tx hash that has been printed by the daemon to `GENESIS_COINBASE_TX_HEX` in `src/CryptoNoteConfig.h`
Example:
```
const char GENESIS_COINBASE_TX_HEX[] = "013c01ff0001ffff...785a33d9ebdba68b0";
```
**4. Recompile the binaries**
Recompile everything again. Your coin code is ready now. Make an announcement for the potential users and enjoy!
## Building CryptoNote
### On *nix
Dependencies: GCC 4.7.3 or later, CMake 2.8.6 or later, and Boost 1.55.
You may download them from:
* http://gcc.gnu.org/
* http://www.cmake.org/
* http://www.boost.org/
* Alternatively, it may be possible to install them using a package manager.
To build, change to a directory where this file is located, and run `make`. The resulting executables can be found in `build/release/src`.
**Advanced options:**
* Parallel build: run `make -j<number of threads>` instead of `make`.
* Debug build: run `make build-debug`.
* Test suite: run `make test-release` to run tests in addition to building. Running `make test-debug` will do the same to the debug version.
* Building with Clang: it may be possible to use Clang instead of GCC, but this may not work everywhere. To build, run `export CC=clang CXX=clang++` before running `make`.
### On Windows
Dependencies: MSVC 2013 or later, CMake 2.8.6 or later, and Boost 1.55. You may download them from:
* http://www.microsoft.com/
* http://www.cmake.org/
* http://www.boost.org/
To build, change to a directory where this file is located, and run theas commands:
```
mkdir build
cd build
cmake -G "Visual Studio 12 Win64" ..
```
And then do Build.
Good luck!
This is DaniCoin.

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Release notes 1.1.1
- New API for CryptoNote RPC Wallet
Release notes 1.1.0
- CryptoNote RPC Wallet
- Aggregate multi-addresses for CryptoNote RPC Wallet
- Fusion transactions
- Transactions pool synchronization
- Wallet synchronization speed increase
- High-level API update
- Full network layer refactoring
- New multithreading library
- Improved console logging
- JSON RPC improvements
Release notes 1.0.2
- Multisignature with API
- Low level API
- High level API improvements
- Updated block reward scheme
- Dynamic maximum block size limit
- Instant transaction pool notifications
- Transaction priority based on tx fee
- Transactions are returned from tx pools after 24 hours
- Fully refactored simplewallet
- Transaction history for simplewallet
- Reset command for simplewallet
- Faster wallet refresh
- Further optimization in daemon RAM consumption
- Various network health updates
- Config and CryptoNote forking how-to update
Release notes 1.0.1
- High level API implementation
- CryptoNight hash function optimization
- Improvements for wallet JSON RPC API
Release notes 0.8.10
- Optimized blockchain storage memory usage
- Various code improvements
Release notes 0.8.9
- JSON RPC v2.0 compatibility
- JSON RPC over TCP added
- Further optimizations
Release notes 0.8.8
- Fixed a bug with checkpoints behavior
- UI improvements for daemon
- Various updates from our forks
Release notes 0.8.7
- OSX support
- Further optimizations
Release notes 0.8.6
- Simplwallet can set extra for transfers
- Improvements in JSON RPC for wallet
- UX improvements in simplewallet
- Win32 compilation
Release notes 0.8.5
- Port mapping for daemon using UPnP
- Improvements for daemon JSON RPC API
Release notes 0.8.4
- Formalization of high level API
- Improvements for wallet JSON RPC API
Release notes 0.8.3
- JSON RPC for wallet
- fixed bug with blockchain storing
- fixed bug with correct display of transfer's change
- bug fix in simple wallet
Release notes 0.8.2
- now wallet is still working when daemon stores blockchain and can't serve clients;
- no-console option for a daemon;
- fixed problem with network synchronization;
- major bug fix in simple wallet.
Release notes 0.8.1
Bytecoin project is moved to GitHub