diff --git a/lib/bitcoin.rb b/lib/bitcoin.rb
index 9157c9a9..f99b94c2 100644
--- a/lib/bitcoin.rb
+++ b/lib/bitcoin.rb
@@ -578,7 +578,7 @@ def self.network=(name)
     @network
   end
 
-  [:bitcoin, :namecoin, :litecoin, :dogecoin, :dogecoin_testnet].each do |n|
+  [:bitcoin, :bitcoin_cash, :namecoin, :litecoin, :dogecoin, :dogecoin_testnet].each do |n|
     instance_eval "def #{n}?; network_project == :#{n}; end"
   end
 
@@ -727,6 +727,38 @@ def self.network=(name)
       }
     })
 
+  NETWORKS[:bitcoin_cash] = NETWORKS[:bitcoin].merge({
+    project: :bitcoin_cash,
+    magic_head: "\xE3\xE1\xF3\xE8",
+    protocol_version: 70015,
+    dns_seeds: [
+      'seed.bitcoinabc.org',
+      'seed-abc.bitcoinforks.org',
+      'seed.bitprim.org',
+      'seed.deadalnix.me',
+      'seeder.criptolayer.net'
+    ]
+  })
+
+  NETWORKS[:bitcoin_cash_testnet3] = NETWORKS[:testnet3].merge({
+    project: :bitcoin_cash,
+    magic_head: "\xF4\xE5\xF3\xF4",
+    protocol_version: 70015,
+    dns_seeds: [
+      'testnet-seed.bitcoinabc.org',
+      'testnet-seed-abc.bitcoinforks.org',
+      'testnet-seed.bitprim.org',
+      'testnet-seed.deadalnix.me',
+      'testnet-seeder.criptolayer.net'
+    ]
+  })
+
+  NETWORKS[:bitcoin_cash_regtest] = NETWORKS[:regtest].merge({
+    project: :bitcoin_cash,
+    magic_head: "\xDA\xB5\xBF\xFA",
+    protocol_version: 70015
+  })
+
   NETWORKS[:litecoin] = NETWORKS[:bitcoin].merge({
       project: :litecoin,
       magic_head: "\xfb\xc0\xb6\xdb",
diff --git a/spec/bitcoin/bitcoin_spec.rb b/spec/bitcoin/bitcoin_spec.rb
index 87e14669..28154d00 100644
--- a/spec/bitcoin/bitcoin_spec.rb
+++ b/spec/bitcoin/bitcoin_spec.rb
@@ -163,6 +163,10 @@
       success = false if Bitcoin.valid_address?(addr[0]) != true
     }
     success.should == true
+
+    Bitcoin::network = :bitcoin_cash
+    Bitcoin.valid_address?("1D3KpY5kXnYhTbdCbZ9kXb2ZY7ZapD85cW").should == true
+    Bitcoin.valid_address?("mpXwg4jMtRhuSpVq4xS3HFHmCmWp9NyGKt").should == false
   end
 
   it 'validate bitcoin public key' do
@@ -339,7 +343,7 @@
     Bitcoin.hash_mrkl_tree(["aa", "bb", "cc"]).last.should !=
       Bitcoin.hash_mrkl_tree(["aa", "bb", "cc", "cc"]).last
   end
-  
+
   it 'return a value even if a merkle branch is empty' do
     branch = []
     mrkl_index = 0
@@ -530,7 +534,7 @@
     prev_block_bits = 0x1a05db8b
     last_retarget_time = 1348092851
     new_difficulty = Bitcoin.block_new_target(prev_height, prev_block_time, prev_block_bits, last_retarget_time)
-    
+
     Bitcoin.decode_compact_bits(new_difficulty.should) == Bitcoin.decode_compact_bits(0x1a057e08)
   end