Constants and Defaults

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The following constants and defaults are taken from Dash Core's chainparams.cpp source code file.

Network	Default Port	Magic Value	Start String	Max nBits
Mainnet	9999	0xBD6B0CBF	0xBF0C6BBD	0x1e0ffff0
Testnet	19999	0xFFCAE2CE	0xCEE2CAFF	0x1e0ffff0
Regtest	19899	0xDCB7C1FC	0xFCC1B7DC	0x207fffff
Devnet	User-defined (default 19799)	0xCEFFCAE2	0xE2CAFFCE	0x207fffff

Note: the testnet start string and nBits above are for testnet3.

Command line parameters can change what port a node listens on (see -help). Start strings are hardcoded constants that appear at the start of all messages sent on the Dash network; they may also appear in data files such as Dash Core's block database. The Magic Value and nBits displayed above are in big-endian order; they're sent over the network in little-endian order. The Start String is simply the endian reversed Magic Value.

Dash Core's chainparams.cpp also includes other constants useful to programs, such as the hash of the genesis block blocks for the different networks.