Regtest Configuration

The regression testing network is a local network which reduces mining difficulty to the lowest possible value. This allows for rapid creation of blockchains for automated testing.

The following configuration settings are used to configure regtest.

[network]
# The magic number for message headers.
identifier = 3669344250

# The port for incoming connections.
inbound_port = 18444

# Disable seeding, otherwise manually populate hosts.cache file.
host_pool_capacity = 0

# Optionally connect to one or more peers on a private regtest network.
peer = regtest1.bitware.co:18444
peer = regtest2.bitware.co:18444

[blockchain]
# Disable default (mainnet) checkpoints.
checkpoint = 0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206:0

[flags]
# Retarget difficulty, defaults to true (use false for regtest).
retarget = false

# Require coinbase input includes block height (disabled on satoshi client).
bip34 = false

The following are unique considerations for regtest.

• flags.retarget = false requires at least version 3.4 (required for regtest).
• bip90 assumes fixed activation heights for bip34, bip66 and bip65 and these are set to 0, 1251 and 1351 respectively.
• flags.bip34 = false simulates satoshi client bip90 behavior (until height 100,000,000).
• bip34, bip66 and bip65 are activated according to specification if bip90 is disabled.
• bip68, bip112 and bip113 (check-signature-verify) and bip141, bip143 and bip147 (segregated-witness) activate at genesis if enabled. However, on the satoshi client these follow a bip9-style activation which will activate them at height 432 if signaled on blocks 1 through 432.