diff --git a/contrib/seeds/README.md b/contrib/seeds/README.md
--- a/contrib/seeds/README.md
+++ b/contrib/seeds/README.md
@@ -14,9 +14,9 @@
 `seeds_main.txt` and the `dnsseed.dump` file from the testnet seeder has been copied to
 `seeds_test.txt`.
 
-    python3 makeseeds.py < seeds_main.txt > nodes_main.txt
-    python3 makeseeds.py < seeds_test.txt > nodes_test.txt
-    python3 generate-seeds.py . > ../../src/chainparamsseeds.h
+    python3 makeseeds.py < seeds_main.txt > abc/nodes_main.txt
+    python3 makeseeds.py < seeds_test.txt > abc/nodes_test.txt
+    python3 generate-seeds.py abc > ../../src/networks/abc/chainparamsseeds.cpp
 
 ## Dependencies
 
diff --git a/contrib/seeds/nodes_main.txt b/contrib/seeds/abc/nodes_main.txt
rename from contrib/seeds/nodes_main.txt
rename to contrib/seeds/abc/nodes_main.txt
diff --git a/contrib/seeds/nodes_test.txt b/contrib/seeds/abc/nodes_test.txt
rename from contrib/seeds/nodes_test.txt
rename to contrib/seeds/abc/nodes_test.txt
diff --git a/contrib/seeds/nodes_main.txt b/contrib/seeds/bchn/nodes_main.txt
rename from contrib/seeds/nodes_main.txt
rename to contrib/seeds/bchn/nodes_main.txt
diff --git a/contrib/seeds/nodes_test.txt b/contrib/seeds/bchn/nodes_test.txt
rename from contrib/seeds/nodes_test.txt
rename to contrib/seeds/bchn/nodes_test.txt
diff --git a/contrib/seeds/generate-seeds.py b/contrib/seeds/generate-seeds.py
--- a/contrib/seeds/generate-seeds.py
+++ b/contrib/seeds/generate-seeds.py
@@ -98,7 +98,7 @@
 
 
 def process_nodes(g, f, structname, defaultport):
-    g.write('static std::vector<SeedSpec6> {} = {{\n'.format(structname))
+    g.write('std::vector<SeedSpec6> {} = {{\n'.format(structname))
     first = True
     for line in f:
         comment = line.find('#')
@@ -126,8 +126,7 @@
         sys.exit(1)
     g = sys.stdout
     indir = sys.argv[1]
-    g.write('#ifndef BITCOIN_CHAINPARAMSSEEDS_H\n')
-    g.write('#define BITCOIN_CHAINPARAMSSEEDS_H\n')
+    g.write('#include <chainparamsseeds.h>\n')
     g.write('/**\n')
     g.write(' * List of fixed seed nodes for the bitcoin network\n')
     g.write(' * @{} by contrib/seeds/generate-seeds.py\n'.format('generated'))
@@ -141,7 +140,6 @@
     g.write('\n')
     with open(os.path.join(indir, 'nodes_test.txt'), 'r', encoding="utf8") as f:
         process_nodes(g, f, 'pnSeed6_test', 18333)
-    g.write('#endif // BITCOIN_CHAINPARAMSSEEDS_H\n')
 
 
 if __name__ == '__main__':
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -427,6 +427,7 @@
 
 add_network_sources(NETWORK_SOURCES
 	network.cpp
+	chainparamsseeds.cpp
 )
 
 # More completely unrelated features shared by all executables.
diff --git a/src/chainparams.h b/src/chainparams.h
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -7,6 +7,7 @@
 #define BITCOIN_CHAINPARAMS_H
 
 #include <chainparamsbase.h>
+#include <chainparamsseeds.h>
 #include <consensus/params.h>
 #include <primitives/block.h>
 #include <protocol.h>
@@ -14,11 +15,6 @@
 #include <memory>
 #include <vector>
 
-struct SeedSpec6 {
-    uint8_t addr[16];
-    uint16_t port;
-};
-
 typedef std::map<int, BlockHash> MapCheckpoints;
 
 struct CCheckpointData {
diff --git a/src/chainparamsseeds.h b/src/chainparamsseeds.h
--- a/src/chainparamsseeds.h
+++ b/src/chainparamsseeds.h
@@ -1,123 +1,18 @@
+// Copyright (c) 2020 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
 #ifndef BITCOIN_CHAINPARAMSSEEDS_H
 #define BITCOIN_CHAINPARAMSSEEDS_H
-/**
- * List of fixed seed nodes for the bitcoin network
- * @generated by contrib/seeds/generate-seeds.py
- *
- * Each line contains a 16-byte IPv6 address and a port.
- * IPv4 as well as onion addresses are wrapped inside an IPv6 address accordingly.
- */
-static std::vector<SeedSpec6> pnSeed6_main = {
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x0d,0x5a,0x8d,0x0d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x78,0x09,0xd8}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0x19,0xf1,0xe0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x22,0x5c,0x51,0x7c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x22,0xc6,0xe5,0xe2}, 48433},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x23,0xec,0x59,0xd4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x30,0x7d,0xed}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x27,0x61,0xb1,0x37}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2d,0xfc,0xfa,0xf4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2f,0x34,0x1a,0x91}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2f,0x5a,0x66,0x46}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2f,0x5e,0x27,0x57}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xdc,0x79,0xd3}, 6628},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x33,0x53,0x63,0x3c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x33,0x6b,0x00,0x01}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x34,0x19,0xff,0xdb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x34,0xcb,0x42,0x34}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xf4,0x43,0xb6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x7c,0x3f,0x80}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0xb8,0xf7,0x2c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x78,0x77,0x1b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x78,0x7a,0x72}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0x41,0x17,0x8b}, 8331},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc8,0xcd,0x1e}, 8331},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xdd,0x80,0xcd}, 8364},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xdd,0xd3,0x74}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0xb3,0xf7,0xec}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x79,0xa3,0xc3}, 18334},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xc5,0x2c,0x90}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0x73,0x1a,0x84}, 16300},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x13,0x84,0xff}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xc7,0xb2,0xe9}, 8101},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xae,0x42,0xd3}, 8334},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xd8,0x05,0x1f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x63,0x82,0xfd,0xdc}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0xe6,0xb9,0x04}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xec,0x58,0x82}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x74,0x78,0x3a,0x99}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x79,0x4e,0xdf,0xc3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8d,0xdf,0x52,0xd3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x27,0xe9}, 8335},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0xac,0x45,0x92}, 8334},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9f,0x8a,0x5c,0x83}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa1,0x35,0xc9,0xb3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa1,0x35,0xc9,0xba}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0x00,0xe3,0x3e}, 19714},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0x3e,0x15,0xb6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0x3e,0x15,0xd4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf2,0xa8,0x24}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf2,0xa8,0x39}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa7,0xac,0xc8,0x7d}, 8888},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xac,0x68,0x52,0x5f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xaf,0x76,0x7e,0x14}, 19333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb7,0x81,0xe2,0x4b}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x84,0x86,0x9a}, 19333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0xd6,0x81,0x41}, 20022},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x2a,0x6e,0x1e}, 8336},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x8a,0xda,0x43}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0xa9,0xf4,0xbd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0xc8,0xf1,0x84}, 38333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x05,0xbc,0xe0}, 18798},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x0e,0xf6,0xcd}, 8444},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x0e,0xf7,0x7b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x9a,0xa8,0x81}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xbc,0xcc,0xbd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xd9,0x75,0x86}, 8443},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0x7c,0x95,0x43}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x20,0xe7,0xa2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x88,0x4c,0xcf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xca,0xd4,0x4e}, 8334},
-    {{0x20,0x01,0x04,0x70,0x00,0x08,0x08,0x09,0x00,0x00,0x00,0x00,0x00,0x00,0x1d,0xf5}, 8333},
-    {{0x24,0x00,0x89,0x02,0x00,0x00,0x00,0x00,0xf0,0x3c,0x91,0xff,0xfe,0x17,0x3b,0xf1}, 8333},
-    {{0x24,0x0b,0x00,0x11,0x05,0xa0,0xe9,0x00,0x02,0x0c,0x29,0xff,0xfe,0x18,0x94,0x14}, 8333},
-    {{0x26,0x01,0x06,0x02,0x8d,0x80,0x0b,0x63,0xdc,0xf2,0x03,0xff,0xfe,0xf0,0xfe,0x61}, 8333},
-    {{0x26,0x04,0xa8,0x80,0x00,0x02,0x00,0xd1,0x00,0x00,0x00,0x00,0x00,0xd5,0xb0,0x01}, 8888},
-    {{0x2a,0x01,0x05,0xf0,0xbe,0xef,0x00,0x05,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x01}, 52102},
-    {{0x2a,0x01,0x07,0xa0,0x00,0x02,0x13,0x74,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x09}, 8333},
-    {{0x2a,0x01,0x07,0xa0,0x00,0x02,0x13,0x7a,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x09}, 8333},
-    {{0x2a,0x01,0x07,0xc8,0xd0,0x02,0x01,0x0f,0x50,0x54,0x00,0xff,0xfe,0x5c,0xda,0xc7}, 8133},
-    {{0x2a,0x01,0x07,0xc8,0xd0,0x02,0x03,0x18,0x50,0x54,0x00,0xff,0xfe,0xbe,0xcb,0xb1}, 8133},
-    {{0x2a,0x02,0x7b,0x40,0xb0,0xdf,0x89,0x25,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 8335},
-    {{0x2a,0x03,0x1b,0x20,0x00,0x01,0xf4,0x10,0x00,0x40,0x00,0x00,0x00,0x00,0xac,0xef}, 8333},
-    {{0x2a,0x04,0x21,0x80,0x00,0x01,0x00,0x11,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x16}, 8333}
-};
 
-static std::vector<SeedSpec6> pnSeed6_test = {
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x03,0x89,0x44,0x8c}, 48433},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xbd,0x8d,0x4f}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x22,0xfd,0x33,0xeb}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x23,0xc1,0x18,0x1c}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x27,0x64,0x63,0x74}, 20008},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2f,0x70,0x82,0x93}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x33,0x4b,0x80,0xb9}, 18443},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x33,0x59,0x62,0x4c}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x34,0x89,0x30,0x2d}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x34,0xe9,0xc7,0x57}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xc6,0xa4,0x00}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xe2,0x13,0xe4}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x43,0x46,0x45}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xd9,0xa2,0xd7}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x88,0xf3,0xe6,0xec}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9f,0x41,0x65,0xeb}, 8888},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9f,0x41,0x65,0xf0}, 8888},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xac,0x68,0x39,0x55}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x0e,0xf7,0x82}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x0e,0xf7,0x83}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x9a,0xb1,0x31}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x88,0x4c,0xcf}, 18333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0x17,0x0e,0x85}, 18333},
-    {{0x20,0x01,0x0b,0xc8,0x18,0x28,0x13,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 18433},
-    {{0x26,0x01,0x06,0x02,0x8d,0x80,0x0b,0x63,0xdc,0x6d,0x61,0xff,0xfe,0x9f,0x7f,0x29}, 18333}
+#include <vector>
+
+struct SeedSpec6 {
+    uint8_t addr[16];
+    uint16_t port;
 };
+
+extern std::vector<SeedSpec6> pnSeed6_main;
+extern std::vector<SeedSpec6> pnSeed6_test;
+
 #endif // BITCOIN_CHAINPARAMSSEEDS_H
diff --git a/src/chainparamsseeds.h b/src/networks/abc/chainparamsseeds.cpp
copy from src/chainparamsseeds.h
copy to src/networks/abc/chainparamsseeds.cpp
--- a/src/chainparamsseeds.h
+++ b/src/networks/abc/chainparamsseeds.cpp
@@ -1,5 +1,4 @@
-#ifndef BITCOIN_CHAINPARAMSSEEDS_H
-#define BITCOIN_CHAINPARAMSSEEDS_H
+#include <chainparams.h>
 /**
  * List of fixed seed nodes for the bitcoin network
  * @generated by contrib/seeds/generate-seeds.py
@@ -7,7 +6,7 @@
  * Each line contains a 16-byte IPv6 address and a port.
  * IPv4 as well as onion addresses are wrapped inside an IPv6 address accordingly.
  */
-static std::vector<SeedSpec6> pnSeed6_main = {
+std::vector<SeedSpec6> pnSeed6_main = {
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x0d,0x5a,0x8d,0x0d}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x78,0x09,0xd8}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0x19,0xf1,0xe0}, 8333},
@@ -93,7 +92,7 @@
     {{0x2a,0x04,0x21,0x80,0x00,0x01,0x00,0x11,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x16}, 8333}
 };
 
-static std::vector<SeedSpec6> pnSeed6_test = {
+std::vector<SeedSpec6> pnSeed6_test = {
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x03,0x89,0x44,0x8c}, 48433},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xbd,0x8d,0x4f}, 18333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x22,0xfd,0x33,0xeb}, 18333},
@@ -120,4 +119,3 @@
     {{0x20,0x01,0x0b,0xc8,0x18,0x28,0x13,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 18433},
     {{0x26,0x01,0x06,0x02,0x8d,0x80,0x0b,0x63,0xdc,0x6d,0x61,0xff,0xfe,0x9f,0x7f,0x29}, 18333}
 };
-#endif // BITCOIN_CHAINPARAMSSEEDS_H
diff --git a/src/chainparamsseeds.h b/src/networks/bchn/chainparamsseeds.cpp
copy from src/chainparamsseeds.h
copy to src/networks/bchn/chainparamsseeds.cpp
--- a/src/chainparamsseeds.h
+++ b/src/networks/bchn/chainparamsseeds.cpp
@@ -1,5 +1,4 @@
-#ifndef BITCOIN_CHAINPARAMSSEEDS_H
-#define BITCOIN_CHAINPARAMSSEEDS_H
+#include <chainparams.h>
 /**
  * List of fixed seed nodes for the bitcoin network
  * @generated by contrib/seeds/generate-seeds.py
@@ -7,7 +6,7 @@
  * Each line contains a 16-byte IPv6 address and a port.
  * IPv4 as well as onion addresses are wrapped inside an IPv6 address accordingly.
  */
-static std::vector<SeedSpec6> pnSeed6_main = {
+std::vector<SeedSpec6> pnSeed6_main = {
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x0d,0x5a,0x8d,0x0d}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x78,0x09,0xd8}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0x19,0xf1,0xe0}, 8333},
@@ -93,7 +92,7 @@
     {{0x2a,0x04,0x21,0x80,0x00,0x01,0x00,0x11,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x16}, 8333}
 };
 
-static std::vector<SeedSpec6> pnSeed6_test = {
+std::vector<SeedSpec6> pnSeed6_test = {
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x03,0x89,0x44,0x8c}, 48433},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xbd,0x8d,0x4f}, 18333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x22,0xfd,0x33,0xeb}, 18333},
@@ -120,4 +119,3 @@
     {{0x20,0x01,0x0b,0xc8,0x18,0x28,0x13,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 18433},
     {{0x26,0x01,0x06,0x02,0x8d,0x80,0x0b,0x63,0xdc,0x6d,0x61,0xff,0xfe,0x9f,0x7f,0x29}, 18333}
 };
-#endif // BITCOIN_CHAINPARAMSSEEDS_H